Cold pressed oil: what are its benefits and how to prepare it at home

The volumes of sunflower oil shipped for export reach new highs every autumn, increasing by 300 thousand tons per year. At the same time, prices for raw materials (about $300 per ton of sunflower seeds versus $780 per ton of oil on the world market) make it profitable not only to supply abroad, but also to produce vegetable oils for the domestic market. The features of the technology make it possible to organize a mini-churn at home or in an outbuilding, but a full-cycle enterprise will require large premises and significant capital investments.

This article discusses the intricacies of organizing an oil milling business both at home and with a full production cycle. Calculations show that any of the options has economic efficiency and high profitability, and the amount of profit depends only on the volume of production and investment.

Homemade oil press

To obtain oil industrially, the seeds are filled with gasoline fractions.
Hexane, for example. When oil is formed from the seeds, this hexane is removed using steam, and its remains are removed with alkali. At the exit, various undesirable substances appear in the finished product: resins and pigments. Residual solvents are rarely completely evaporated. Before the oil obtained by extraction can be consumed as food or used in medicine, it needs to go through several more stages of purification: refining, then hydration, then bleaching, then deodorization and finally a couple more filtration steps.

We've heard the phrase about oils that go through 7 stages of purification. It's true! Extraction oil can be endlessly refined, filtered, refined, filtered - to get rid of traces of chemical gasoline components.

What is the result?

A product without the slightest signs of life: without a single color and with a complete absence of any odor. The resulting liquid is bottled, and “oil” is proudly written on all labels, misleading all buyers as if it is so.

It is interesting that in Russian supermarkets, for example, more of this refined oil is sold per year than the amount of all the seeds grown in Russia and the CIS!

How is this possible? With the help of cheap palm oil, which is used to dilute already deodorized, refined and processed oils in all possible chemical ways.

Now it’s clear why vegetable oil is HARMFUL?

Because it is impossible, even with the longest and highest quality processing, to remove residues of chemicals and gasoline from it - they will definitely be present in the finished product. In addition, refined oil, which has been subjected to heat treatment and exposure to chemicals, unlike natural oil, has a very low content of vitamins, proteins, phosphatides, chlorophyll and carotene. Its composition is saturated with fats and is very different from what nature originally “intended.”

And then we eat it! We fry food in oil and gasoline! But few people know that at high temperatures, chemical reactions occur in it, as a result of which new, extremely toxic compounds are formed. Therefore, under no circumstances should the oil be heated above 150 degrees or reused! And in a frying pan it reaches a temperature of as much as 250 degrees.

Throughout our lives, without thinking at all, we consume this super-toxic miracle in food, and even with gasoline, and then we are surprised by our unexpected illnesses and poor health. We are outraged that people get cancer at an early age and age faster than before...

What to do?

But you need to make your own oil press, fortunately there is nothing complicated here.

The mini oil press ensures the production of high-quality oil that lasts for 1-2 years. It can be used to obtain oil from sunflower, rice, hemp, flax, pumpkin seeds, watermelon, melon, and nuts.

Once upon a time, hardware stores sold mechanical presses for pressing grape or apple juice, some of them providing pressure of up to 12 atmospheres. Adapting them to oil pressure is very simple: you just need to replace the holder with a more powerful one.

If you were unable to purchase such a press, then it can be made from scrap materials. The design provides pressure on the mass using a worm screw. The pressure force depends on the power of the beam risers, as well as the diameter of the worm nut. Therefore, it is better to make a beam with a large power reserve, that is, thickness and width, from hard wood, or find a metal one.

The design has a cylinder without a bottom. It can be made anew or made from part of a barrel, preferably a new one with straight riveting, reinforced at the bottom with another hoop. The press wheel is made of hard wood: oak, beech, ash, acacia. The material must be dry. It is advisable to make all other wooden parts of the structure from the same material. If you use metal (pallet, hoops, flange), then it is advisable to use stainless metal or bronze.

At oil pressing plants, the operations of peeling the husk and crushing the kernel are performed separately. Here they were able to be combined in one design, which is not difficult to manufacture.

Skinning rollers are two replaceable rollers that rotate using gears mounted on metal risers, to which the upper and lower buckets, changeover lever or rotation handle are also attached. All these parts can be made or picked up from scrap metal. Replaceable wooden rollers, linen-lined graters (depending on the width, one or two graters are needed per roller, on which they grind potatoes into starch or potato pancakes).

The installation process occurs as follows: when the seeds poured into the bucket are peeled from the husks, gear 2 rotates from working gear 3, and from them the upper roller, lined with a grater cloth, rotates. Attached to operating gear 3 using a lever and a spring, changeover gear 1 engages with it and rotates another roller (lower), covered with a grater cloth. The direction of its movement is rotational. The seeds that are fed into the gap between the rollers are peeled off. The kernel and husk fall into the lower bucket.

This mixture is collected, winnowed and, replacing the rollers with smooth ones, poured back into the upper ladle. Now for rolling. But in order for the structure to crush the mass, the lever must be moved to position B in order to disengage gear 1, which will now rotate freely in the same direction as gear 2, squeezing and pressing the core. The rolled mass in the form of a slurry is used for pressing and squeezing out the oil.

Both the peeling rollers and the press separately work incomparably. The product comes out clean, of high quality, and tasty, especially when the kernel is well fried. To do this, frankly speaking, you need experience (all this is achieved experimentally). Product yield is slightly lower than at specialized enterprises. This is understandable, the pressure is not the same. But this, as they say, is not so bad.

Insufficiently squeezed out pulp (cake), if the kernel has been well cleaned, can be successfully used for making candies, cookies and other sweets.

And the oil comes out of high quality. In addition, it is possible to mechanize these installations and install electric motors. Make several different types of installations and open a home oil refining mini-factory, etc.

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Making vegetable oil at home

A business idea for the production of sunflower oil is based on an oil mill. From an investment perspective among professionals, the idea has not lost its popularity and is still in demand and profitable.

However, for many, the issue of income in this area is quite controversial, which is in vain. Let's take a closer look so as not to rely on the opinions of the majority, but to base our own conclusions on specific numbers and facts.

In this business you won’t be satisfied with just butter. The profit from its sale is hardly enough to reach the cost level. But we must not forget about the additional products obtained from the creamery, which bring a significant net profit.

The most famous manufacturers of the CIS countries

At the moment, in almost every country there are several leaders in the production of this important and necessary food product. The list of the largest sunflower oil producers in Russia looks like this:

The rating of sunflower oil producers in Ukraine also consists of three unconditional leaders:

The production of sunflower oil in Kazakhstan is also quite developed, and among the largest producers, the following should be especially noted:

Catalog of used and new equipment for oil and fat production.

Equipment for the production of vegetable oil

The production of vegetable oil at home is limited by financial resources. This type of business is attractive for its flexibility of rapid development. You can start with a minimum set of production workshops, and then expand with additional equipment for the production of by-products. Thus, the range expands, and profits grow progressively. A full-fledged plant for the production of vegetable oil must be WASTE-FREE!

The minimum configuration of the line consists of the following equipment:

Mini oil press. The power of such an oil press is 2 kW. per hour, 220 V. Capacity = 13 liters per hour. Press weight 45 kg. The average cost is $800.

Food filter. The oil must be cleaned using a special filter with a capacity of 0.5 m2. at one o'clock. Productivity = 5 liters per hour. Filter weight 100 kg. Cost 1100-1300 dollars.

Rating of the best options

There can be many models that fit the criteria discussed above. We still recommend choosing options from the prepared rating, since it is based on real user reviews and the popularity of purchases.

Screw manual oil press Piteba

A practical hand-held device that can perform hot and cold oil extraction. It will be an ideal purchase for those who support an extremely healthy diet. The device is capable of working for a long time without rest. There are no difficulties in using the unit.

Press for squeezing oil, manual screw type Source vsesoki.ru

Advantages:

• the most simple design;
• fast heating when using hot mode;
• continuity of work;
• light weight.

Minuses:

• no additional components;
• may become clogged if processed too intensively.

The design of the device contains all the necessary regulators and mechanisms to achieve optimal spin quality.

Technology for the production of vegetable oils by pressing

Production flow diagram:

The technological line for the production of vegetable oil is equipped with:

• Separator for coarse and fine cleaning of grain and seeds.
• Hulling machine for sunflower seeds and other oilseeds.
• Twin-screw oil press extruder with heating elements for mint up to +50C (for a quick start).
• Filter for purifying vegetable oils from fuses (food grade).
• Press for squeezing fuses (fusodka).
• Press for forming crown circles.
• Press for briquetting sunflower husks and other seeds.
• Auxiliary equipment, structures and devices: bunker; pneumatic loader; weight; buckets, shovels, etc.

We will conduct a simple training workshop on the technology of production of vegetable oils.

Waste-free production using the cold pressing method during squeezing occurs in several successive stages:

1. Rough cleaning of oilseeds (raw materials). From coarse impurities that can damage technological equipment (stones, wire, etc.).
2. Fine cleaning of raw materials. From small premiums that may affect product quality (dust, weed seeds, etc.).
3. Peeling of the seed coat. This process is carried out immediately before cold pressing. In the waste-free production of vegetable oil, the husks are used as biofuel, and the kernels are used as oil and fluff. The shell of oilseeds can be removed using different types of equipment in different ways: rubbing the shell on a specially corrugated surface; splitting the shell by impact; compression under pressure.
4. Pressing kernels through a screw oil press to obtain oil and flour. At this stage we get 2 semi-finished products.
5. Filtration. The process of filtration of the crude product obtained only from the press occurs using filters based on filter fabrics. For example - lavsan. Under air pressure, the liquid hits the surface of the fabric and passes through it, leaving fuses on the surface.
6. Fuzz extraction. The fuzz itself, obtained after filtration with lavsan, contains 80% fat content. It is rational to squeeze it out in the same way. The production of vegetable oils by pressing ends at this stage. Then by-products are produced.
7. Hot pressing of the top. It is better to press the flour immediately upon exiting the oil press, while it still retains the temperature from the pressure.
8. Briquetting. In order to profitably and quickly sell seed husks, you need to produce a popular product from them - biofuel. Naturally, this process will require special equipment.

As for the organization of labor in production on such a line, everything depends on the workload of the workshop with raw materials for processing and the timing. If the load is minimal (for example, 1 ton per day), then even 1 employee is enough. As soon as the sales market for all types of goods produced at the oil mill is established, additional labor will be needed in order to invest on time with good production volumes.

Seed processing

This stage is one of the most important, since the indicator of the level of quality of seeds that arrive for primary processing plays a decisive role in the final quality of the finished product. That is why raw materials for the production of vegetable oil can be thoroughly cleaned from impurities. Also important is the indicator of the seed’s shelf life and conditions - temperature, light, etc.

The oil content of the seeds depends on the weather conditions under which the crop grew. If there was a lot of sun in the summer, then this figure increases. Dampness and moisture have the opposite effect on the plant. The optimal moisture content of seeds that are processed is about 6%, since raw materials that are denser due to excess moisture are stored much worse and can gradually begin to rot in warehouses. Sunflower oil production enterprises take these factors into account in order to ensure the safety of the sunflower seeds until the moment when they are fully processed. There are other parameters that affect the final quality of the finished product:

This is followed by the procedure of grinding the seeds, with which the production of cold-pressed vegetable oil begins. The harvested raw materials are called mint or pulp. It is noteworthy that in addition to pressing, there is also an extraction technology, but it is less environmentally friendly compared to the traditional method.

Vegetable oil production waste and its use

A homemade butter churn for sunflower oil production pays for itself faster if all its advantages are rationally used. Don't underestimate the importance of waste management.

At the exit from the oil press we obtain vegetable oil that is unrefined and black in color. It should either be settled or filtered from the fuses in a special way.

Fuzz is small particles of husk and dust with a large content of residues of the produced product, which remains after filtration. The best method for removing waste is considered to be a fabric filter. You should not spare money on the filter, and then it will efficiently clean the product and prepare it for presentation. When the oil is cleared, the collected fuses can be pressed on a fusodushka. From it we can still get 20% bio-coal + 80% vegetable oil. The processed fuses are further turned into stone, which in turn is used as fuel for boilers.

Don't skip the fusodach operation, as careless businessmen do! After all, some companies buy waste from vegetable oil production enterprises very cheaply in order to then squeeze out all the profit from them.

Thus, a business idea can become an almost waste-free process. You will receive not only a high-quality product that will not be in demand at any time of the year, but also unique fuel and good corn.

Extraction

This is a more affordable and effective way to produce unrefined sunflower oil, which allows you to extract almost 100% of the fatty substances from mint. Technologically, the raw materials are mixed with organic solvents, among which extraction gasolines are the most popular. The resulting mixture is then immersed in extractors, where the processing process produces miscella. This is a kind of emulsion of oil and solvent. Completely defatted meal is also formed there as waste.

After this, gasoline vapors evaporate from the resulting three-component mixture, and the fatty oil is settled and filtered, completely cleared of meal. Unlike the production of vegetable oils using the pressing method, this approach is much more effective and less expensive, which directly affects the final cost of the finished product. Even at a lower cost, such a product is generally not in such high demand as one might expect.

It is noteworthy that the largest manufacturers of vegetable oil, depending on production technology, often segment their business by brand, separating more expensive oil from cheaper one. This is primarily due to the fact that extraction technology involuntarily causes distrust on the part of end buyers, which is why this measure is widespread.

Creamery profitability

So, the raw materials for production (sunflower seeds) cost about 500 dollars (about 480), if we talk about a ton. After the raw materials are processed, approximately 350 kg of sunflower oil can be obtained from this amount (yield 35%). One liter can easily be sold for one and a half dollars. Thus, for 350 kg the total cost will be $525. 525 – 480 = $45 profit. Of course, $45 per ton is a small amount. But do not forget that during production, you can also earn money on another product - on makukha (meal).

Macukha, by the way, is no less a popular commodity than butter itself. Upon receipt of 350 kg of the main product, the meal will be 650 kg. Most often, meal is bought in whole bags, and not by the kilogram, so it will sell much faster. Makukha is sold out at $0.4 per 1 kg. So, if you multiply 650 kg. by $0.4, the amount will be $260. Considering these numbers, the business idea becomes much more interesting.

Hemp and products derived from it

Sowing industrial hemp does not involve the use of pesticides and herbicides. Plant yields are high. The soil is not contaminated after sowing. The plant itself does not require special attention and is highly resistant to diseases and pests. Large hemp crops provide a source of biomass that can remove greenhouse gases from the atmosphere. Scientists believe that plants will soon be able to replace fossil hydrocarbons - oil and gas.

Hemp grows in any climate. It has the ability to remove harmful substances from the soil, but at the same time remains environmentally friendly. If paper is made from 1 hectare of hemp seed, then its plant mass, accumulated over 3 months, will replace 4 hectares of forest plantings.

The following food products can be produced from hemp seeds:

• oil;
• flour;
• crackers;
• porridge;
• drying.

Eating hemp foods will have a rejuvenating effect on the skin, improve blood condition, give strength and activity, and increase vitality.

Seed hemp is suitable for the production of:

• sails;
• twines;
• ship gear;
• diapers;
• tablecloths;
• backpacks;
• T-shirts;
• paper;
• scarves;
• building materials;
• biofuels;
• paints;
• plastic;
• diapers;
• batteries;
• pet food;
• surfboards;
• furniture.

Interesting: The Boeing 787 aircraft consists of 87% hemp fibers. This distinguishes it by its low weight and high percentage of rigidity. The specific performance of hemp is superior to steel, making the aircraft body lighter.

Extracting sunflower oil at home

Today sunflower oil is expensive. If there is an empty plot of land, it is better to sow it with sunflower seeds. If possible, you can buy ready-made seeds from landowners. You can squeeze out the oil using an oil press. The technology for preparing oil consists of several operations.

It all depends on the quality of the oil you want to get. To make the oil odorless, the seeds do not need to be fried, but to obtain the aroma, you need to roast the sunflower seeds. How do you press the seed into the oil? Almost all seeds contain oil, and one such seed is the sunflower seed. You can press sunflower oil with an oil press, a hydraulic press, or using rollers.

First you need to peel the seeds from the husks. If there are a lot of seeds, you don’t have to peel them, but the output of oil will be less, but the very healthy cake is good for livestock feed. In ancient times, the so-called makukha was used to prepare sweets, halva candies, and was very much appreciated by fishermen and makushat lovers.

To make peeled sunflower seeds soft, you need to lightly fry them, or simply heat them on a hot surface so that the oil from the sunflower kernels comes to the surface a little. This will make it easier to squeeze out the sunflower oil. But roasted peeled seeds for extracting oil are softer and more pliable.

Difference between hemp seed and drug cannabis

The highest quality hemp combined with the most advanced CO2 extraction technologies produces the best cbd oil. Envy Hemp CBD begins life as a seed in Kentucky, where it feeds on rich soil and abundant sunshine. Pure CBD Isolate CBDistillery Company, considered by the FDA to be the best quality CBD on the US market, was founded by Colorado natives...

Experts divide the plant into 3 types:

• sowing;
• weedy;
• Indian.

Only the Indian variety contains an increased amount of the narcotic substance. The weed species contains a small portion of psychotropic substances. Sowing does not contain any drugs at all. Therefore, the latter option cannot be called marijuana.

The Indian plant contains 60 cannabinoids that can create a connection with certain parts of the brain. Psychotropic cannabis of this type is prohibited in our country. Cannabinoids are found in stems, leaves, and inflorescences. However, they are not found in the seeds. The oil yield from hemp seeds is quite high and is produced without narcotic compounds. Both oil and hemp seeds do not contain psychotropic substances and also do not have a narcotic effect.

Hemp oil is healthy and contains a huge amount of amino acids, vitamins, minerals and polyunsaturated fatty acids. Knowing how hemp oil is made, you can make your own homemade oil. Cold-pressed hemp oil and hemp essential oil should not be confused.

Important to know: In Russia, only oil is allowed to be produced. The production of the extract is prohibited.

Sana Juicer 707 in practice. Part 4 – Cold pressed oil at home

Where to begin

Cold pressed oil can now be obtained at home at any time convenient for you. All you need is quality seeds of your choice and a good juicer (Sana 707 in our review) with an oil press. This means a special attachment that is installed on a horizontal juicer, with the help of which it is easy and simple to prepare flaxseed, sesame, poppy, nut, grain and many other oils.

But it is important to remember: homemade oil is natural, so to maintain quality it should be kept in a dark, cool place for no more than 14 days.

How to prepare flaxseed oil

Flax is a well-known oilseed crop. There are several types of it, in particular long-lasting and curly. To extract oil at home, it is better to take the latter. It produces up to 50% of the output oil.

The cooking process is very simple, you just need to follow a few points:

• you need to add the seeds a little at first, and only when the first drops of oil appear at the exit can you add more;
• To obtain the required pressure inside the press chamber, you should use seeds with a moisture content of no more than 15%, that is, dried (but not overdried).

From 500 g of flax you should get about 200 ml of oil.

For flaxseed oil it is better to use flax flax

Cold pressed sesame oil

Since sesame is brought from India, you need to pay attention to its quality. Depending on this, from sesame seeds can be obtained from 15 to 45 percent of oil. Seeds must be fresh, oilseed varieties. Please note that sesame oil can be different: with a lot of pulp if it is white polished sesame, and transparent if it is black sesame.

Butter pan

Every farmstead where there is a cow needs a butter churn.
Typically, it is a wooden cylinder with a lid through which a rod with a shaped circle at the end is passed, driven manually. I made a mechanical butter churn. Butter churn in working condition and disassembled.
I took an enamel pan with a height of 14 cm and a diameter of 18 cm. I cut a circle out of 10 mm thick plywood so that it went inside the pan, and from fiberboard - a larger circle-overlay. I fastened both circles together and made a hole in the middle for the motor shaft. An electric motor with a power of 90 watts and 200 rpm was attached to the top of the lid. The shaft itself was lengthened, and a horizontal plastic turbine was attached to its end. I pour slightly warmed cream into the pan and turn on the engine at 220 volts.

In 10 minutes. the oil is churning. It is aromatic and tasty.

If the engine is without a housing, then for safety reasons it can be insulated with an ordinary plastic bottle: cut off the lower part of the required length and put it on the engine.

Ilya Borisov Based on materials from the Toloka newspaper. We do it ourselves"

Section: Various homemade products Date of publication: 03/25/2012, 06:57

Personal experience in squeezing sunflower oil using a manual oil press

To obtain oil from seeds at home, we bought a stainless steel oil press - Dream manual RAWMID ODM-02, for 9,500 rubles.

We would like to share our experience. We tried to use this oil press to squeeze sunflower seeds grown in central Russia.

Structurally, the oil press resembles a meat grinder, with the difference that its body is much smaller in diameter, more elongated, and the screw is correspondingly longer. The auger ends not with knives, as in a meat grinder, but with nothing, and the pressed mass is fed to a conical nut (let’s call it a shank), which is screwed onto the body of the oil press. The auger rests on this shank and, thanks to its conical shape, the seeds are crushed and pressed.

Installation of a manual oil press into the working position is carried out by connecting the mounting bracket, which is attached to the body of the oil press with three bolts and wing nuts.

The structure is pressed to the table with two bolts from below; under each bolt a round metal foot 5 mm thick with a recess for the screw is placed. The use of spacers for screws made of a thinner iron strip is unacceptable, since when tightening the bolts, the spacer moves and is pressed at an angle.

As our experience has shown, the optimal thickness of the table board is 40 mm, and the height of the table from the floor is one meter. If you make the table lower, your neck muscles will become tense during work; if you make it higher, it will be awkward to twist.

Further assembly is not difficult; you need to insert the auger after placing a brass ring on the axle. The ring must be lubricated with sunflower oil for initial lubrication, then assemble and put on the handle, and place a funnel for filling the seeds. Then screw the shank, but you don’t need to tighten it too much. A plug is screwed into the outlet hole of the shank, which will need to be unscrewed at the beginning of work, when operating pressure is created.

The oil press kit includes an alcohol lamp, which is installed in a special place and is designed to heat the body of the oil press in a place closer to the shank. As fuel, you must use only food grade or medical ethyl alcohol with a strength of at least 80°. The use of other flammable substances is prohibited for hygienic and fire hazard reasons.

The alcohol lamp needs to be filled with alcohol about 1/3 and the wick should be generously moistened along the entire length, including the place where it burns; this place should be pulled out by 5 mm. Then set it on fire and place the alcohol lamp in a special place, securing it with an elastic band.

Work should begin when the alcohol lamp warms up the body a little; this will take 2-3 minutes. A cup for collecting oil is installed next to the alcohol lamp under the body of the oil press. Now you can pour the seeds into the funnel and start twisting. You don’t need to add a lot, about a handful, it’s better to add more often.

Start turning the handle.

After 7–10 revolutions, the working pressure will build up, then you need to unscrew and remove the plug from the outlet hole of the shank and continue to rotate the handle. In this case, the pulp should begin to come out of the outlet hole. Then you need to make 5 turns in the opposite direction. Then the mode of operation is as follows: 1) adding seeds (so that they are always in the inlet); 2) 11–15 revolutions forward; 3) 5 turns back, during which the oil, pleasing to the eye, flows into the glass in a cheerful stream. If you do not rotate backwards, then more oil will escape with the cake.

According to our observations, the optimal temperature of the body when heated with an alcohol lamp is achieved when, when rotating with force, vibration in the form of a characteristic creaking disappears and there is a barely noticeable smell of heated seeds, and perhaps a slight crackling sound when you stop the rotation. If the smell becomes too noticeable, it smells like roasted seeds and the crackling becomes stronger, the alcohol lamp should be extinguished for a short time.

To light a spirit lamp without removing it, it is better to get a turbo lighter.

A break in work should not be taken for more than 2 minutes, since the cake in the shank area quickly hardens without movement.

It's not as hard to twist as it might seem at first. After some time, it is easy to achieve a stable rhythm, working according to the indicated scheme, making approximately 2 revolutions every 3 seconds, working continuously for 1.5–2 hours.

When completing the work, you need to extinguish the alcohol lamp, immediately unscrew the shank with pliers, use a pointed tool, such as a screwdriver, clean it as much as possible from the cake, at least in the center, and put it in a bowl with hot water. After a few hours of soaking, it is easy to remove the pulp. If this is not done immediately, then cleaning the shank from the pulp will be a very lengthy and unpleasant procedure.

The oil yield in our case was approximately 50 ml from a one-liter mug of seeds (400 g of seeds). This takes an average of 17 minutes.

The oil turns out black, since we used the seeds without peeling. After about a day of settling, the blackness settles and the oil acquires a noble golden color and becomes transparent. Very tasty and aromatic!

The oil obtained in this way, without overheating, contains many useful substances and microelements, but unlike refined oil, it cannot be stored for a long time and becomes cloudy over time. Under the influence of high temperatures and light, vitamin A and other beneficial substances are destroyed in it, and oxides are formed. Therefore, it is important not to overheat the body of the oil press during spinning, but to extend the shelf life, store the oil in a dark place at a temperature of +5 to +15, in dark bottles filled with a cork so that there is no contact with air.

Receiving process

You can try making unrefined oil yourself. An interesting option is one that requires a minimum amount of equipment. The first thing to do is sort the seeds and get rid of the garbage. At home, this will have to be done manually, while in factories this process is automated.

Next comes the most labor-intensive process - separating the fruit membranes from the nucleoli. If there is no seed seed or separator, then you will have to do it yourself. When this procedure is completed, it is necessary to destroy the structure of the seeds and roll them. You can do this at home using a mixer or an old coffee grinder. If you want to get completely “handmade” sunflower oil, you can simply grind the seeds in a mortar. The hands, of course, get tired, since this is done with quick movements and with effort, but the result is worth it. The process will produce a substance called mint.

To get a more aromatic sunflower oil, you should heat the mint in a special roasting pan, after dousing it with hot water. Industrial production requires special equipment, but at home you can use baking sheets and gas burners. At this stage, it is important not to overheat the scalded pulp of crushed seeds; the temperature should not exceed 120 degrees, otherwise the oil will darken excessively and the beneficial substances will be destroyed.

If all technological details are observed, oil will begin to separate from the pulp. The crushed and heated seeds are split into cake and aromatic sunflower oil, which now needs to be squeezed out. Of course, it’s better to use a special press for this, but if you don’t have one, you can make do with improvised methods by constructing it from an ordinary saucepan.

To do this, holes for drainage are drilled in the bottom of the pan, and a powerful bolt is inserted in the middle, which will tighten the piston. The piston itself can be made from a metal or wooden circle. The heated pulp is placed in a pan, a piston circle is placed on top, and a long bolt is inserted. Next, you will have to tighten the nut more tightly, then sunflower oil will flow out of the holes in the pan.

In practice, it is quite possible to make sunflower oil in this way, which yields up to 14% of the pulp volume. Production at the factory involves repeated pressing of the cake, which can be done at home. In factories, the last drops are extracted from twice-squeezed cake by extraction, that is, with the help of solvents, but at home you should not treat it with acetone or gasoline. This is unlikely to be beneficial to health.

The remaining cake is best used for fattening livestock, using it as a valuable nutritional supplement.

The finished aromatic vegetable oil should be set aside so that all impurities settle to the bottom. The oil can then be subjected to filtration, but can also be consumed in its received form. As you can see, preparing homemade sunflower oil is quite simple; the only question is how to preserve it.

From the cake left over after making oil you can make fish bait