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Article - How to Make Cooking Oils from Scratch

Offline TWP

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Article - How to Make Cooking Oils from Scratch
« on: February 14, 2018, 08:54:01 AM »
You will need a means of rendering or expressing oils.  That usually means a commercial device and I recommend that you buy such a tool.

https://www.backdoorsurvival.com/how-to-make-cooking-oils-from-scratch/

Then you will need a source for the oils, whether animal fats or vegetable seeds (grow your own...).

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Offline 230gr

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Re: Article - How to Make Cooking Oils from Scratch
« Reply #1 on: February 14, 2018, 06:29:55 PM »




Home Oil Press  Unit Price: $164.00
Edible oils and fats are essential for good health; you need 1 to 1 ½ oz per day to stay healthy. One unfilled need in home self-sufficiency has been the ability to efficiently extract oil using a relatively cheap and simple device. This is it. We particularly love the simplicity and efficiency of this oil press.
Developed for use in areas without power, this hand-crank expeller can process up to 2 liters of oil per hour. At approximately 8 x 5 x 2.5 inches the Piteba is very compact but ruggedly built, and requires little maintenance.
It is suitable for almost all oil-containing seeds and nuts with at least 25% oil in the seed. Generally this press allows continuous pressing of oil seeds/nuts, generally without removing the bark, husk, or outer covering. We currently offer seeds for sunflower and radish especially bred for oil production.
While this press was developed to be an instant small industry in itself for farmers in the Third World, providing them with increased economic independence, it was refined from an old hand-cranked press used in The Netherlands. During World War Two in particular, cooking oil was not at all available, so these early presses, as inefficient as they were, saved who knows how many families. Edwin Blaak, the developer of this press came across an example of this press in a museum in Denmark. He was inspired by the potential of an oil press, and spent five years developing this very efficient press, optomizing it to work well with any oil source..
Edwin worked for 30 years in developing countries in a great variety of agricultural projects worldwide. Many development organizations had known that on farm transformation of oilseeds to oil and press cake could considerably improve farmer's income. The oil can be sold in the local market and the press cake could serve as a protein concentrate in animal feed for local farmers.
While very sturdy and long-lasting we want to warn customers in advance to promptly clean this press immediately after use, while it is still warm. This seems to be the only serious caveat with this press.

Oilseed Radish
Raphanus sativus var. oleiferus. This type of radish is grown for the seeds, which can be pressed for oil. In addition the extra long taproot breaks up and aerates the soil and draws up nutrients for following crops, and after harvest of the seeds there will be plenty of material remaining for the compost pile. Plant is hardy to 25 degrees farenheit, but seeds should be harvested before cold weather sets in and damages them. 2500 seeds. C. $3.00

Oilseed Sunflower

90 days. Black-seeded type bred for big yields of small seeds high in oil. Plants get about 6 feet tall and have the familiar bright yellow flowers, smaller than ornamental types but still wonderful to see planted in a whole bed. Flowers turn downward when the seed is ripe to protect it from birds, moisture, etc. 100 seeds. C. $2.00

Kakai Pumpkin

100 days. We’ve had many requests for a pumpkin especially for growing your own pumpkin seeds for snacking and cooking. This is it-- open the green-striped pumpkins and you’ll find “naked” seeds that don’t need shelling. A high-protein treat, with many health benefits. Kakai is a variety of the Austrian type pressed for the oil that European studies show promotes prostate health. Semi-bush, short-vine plants. Avg. yield: 2-3 fruits/plant. One pumpkin contains around 300 seeds.  Seeds contain sizable amounts of protein (35%) and approximately 50% fatty oil, mainly unsaturated fatty acids linoleic and oleic acid. 10 seeds. C $2.50
http://www.bountifulgardens.org/prodinfo.asp?number=SOI-9418

(This pumpkin seed oil controls my benign prostate enlargement (BPH) and it tastes delicious too. 230gr)

Pumpkin Seed               45.5% Total Oil   86% Extraction Efficiency 1.5 Liters Oil/Hr
Expel with the seed coat. Remove stones to avoid damage to the expeller screw. Seeds enter slowly into expeller leading to a relatively low oil yield per hour. Turn at 55 rpm  do not use adjustment bolt
 turning requires considerable force   

Sunflower (black oil seed)  45. % Total Oil   76-84% Extraction Efficiency 1.33 Liters Oil/Hr
the funnel with a small wooden The whole seed (undecorticated) should be expelled. Take care to remove any prevent bridge formation in stick stones before expelling;. Turn at 60 rpm  expel without
adjustment bolt   turning requires fair force

Home Oil Press Sale (This is the best price I could find on the net. 230gr)
List Price:   $150.00
Price:   $147.00
Sale:   $139.99 + $7.49 shipping


http://www.amazon.com/Piteba-Nut-Seed-Expeller-press/dp/B004H2SDTM


Includes:
Oil press
Bottle for "lamp", wick and wick holder
1 elastic band (red) for securing the "lamp" to the press
Mounting hardware
 
Extra Supplies NOT included:
Funnel: use a plastic soft drink bottle--cut about 6" from the opening (OD of the outlet should be about 1¹⁄8")
Colored lamp oil (use colored so it is not confused with pressed oil)
2 containers: 1 to catch the oil and 1 the press cake

Tips:
Sift seeds and nuts through sieve to remove unwanted particles, stones, straw, etc.
Seeds and nuts should be well dried (8-10% moisture content)
No deshelling required (except for peanuts, walnuts and hazelnuts)
Make sure the washer on the end of the expeller screw is greased sufficiently with vegetable oil
Let sit about 10 min. after lighting and placing container under chimney so press cage is heated sufficiently
Depending on the type of seed or nut used, the adjustment bolt may or may not be used
Crank should be turned clockwise--speed of cranking is determined by what is being processed
Clean oil slit regularly to keep it from getting clogged
Clean unit immediately so press cake doesn't harden; if press cake can't be removed, soak in warm water
The press cake in the cap can also be softened before use (when already hardened) by heating the press before use for 30 min. Without removing the cake in the cap, you can start pressing (only if the same seeds or nuts are pressed). This will save a lot of cleaning time.
Oil should sit at room temperature for a few days so that the solids will settle--no filter is needed
Oil should be stored in a closed container in a cool, dark place until used
Operation
PITEBA oil expeller: suitable for almost all oil containing seeds with at least 25% oil in the seed
IMPORTANT FOR GOOD RESULTS
Moisture contents of the seed should be 8-10%
Too dry (artificially dried seeds or dried in arid regions): press cake in cap is stone hard / no oil production
Too moist: press cake flows back to the oil slit / no oil production
Properties of the PITEBA oil expeller:
High extraction efficiency
Continuous expelling
Manually operated (no external power source required)
Almost no maintenance required
Seeds can be expelled including seed coat
Simple operation
Quality Requirements of the Seeds:
Seed has to be well dried, but not too dry (8-10% moisture content)
No deshelling required except for groundnut, walnut and hazelnut
Seeds should be freed from any stones, sticks and sand before expelling
Big seeds such as walnut, hazelnut, oil palm kernel, coconut and babassu need reduction in size but should not be ground
Expelling Operation:
Before starting daily expelling: grease washer at the end of the shaft of the expeller screw with vegetable oil and insert the screw within the press cage
Mount press cage cap and terminal adjustment bolt--the use of the terminal adjustment bolt is indicated for every type of seed processed
IMPORTANT:
The thread of the press cage cap has to be cleaned before turning the cap on the press cage. If this is not done, the cast iron cap may burst!
The press cage should be heated for 10 minutes with the small oil burner, as provided, before starting work--the burner remains burning also during expelling
The expeller is operated by turning the crank clockwise
The seed enters through the funnel into the expeller screw--the screw moves the seed towards the press cage outlet; near the press cage outlet the seed is ground and exposed to a very high pressure
The oil is expelled near the press cage outlet and runs against the direction of the flow of the seed to the oil outlet--the oil needs time to move to the oil outlet
The press cake leaves the press cage at the end of the cap or the small holes depending on the use of the terminal adjustment bolt as indicated for each type of seed.
Oil outlet may be blocked by small particles and should be cleaned regularly with a blade to allow free oil flow
The oil is collected from the slit in the press cage and is collected in a container
The Oil:
Oil is collected in a container under the press cage and emptied in a big container
Impurities will settle in the big container after a few days--if necessary keep the oil at 86° F or slightly warmer to allow easy settling of impurities
Decant the clear oil--the oil is ready for use
The Press Cake
The press cake can serve as protein concentrate in feed for chicken, pigs, goats, ducks and cattle
The press cake can serve as organic fertilizer as it is rich in nitrogen, phosphorus, potash and magnesium
The press cake can serve as fuel
During Oil Expelling:
Check oil flow and clean with a blade the oil slit when the oil flow is impeded
After Expelling:
After expelling, remove the cap immediately from the end of the press cage when still hot
The hot press cake in the cap is still rather soft and easy to remove with a knife or a screw driver
Watch out! Do not damage the thread inside the cap!
If the cap is not cleaned immediately when still hot, the press cake inside the cap becomes hard like stone and is difficult to remove
If you soak the cap in warm water for a few hours, the press cake will soften and can be removed
If the same type of seed is pressed again and the press cake is cooled down and stone hard: light the small burner and wait for 20-30 minutes--the press cake will turn plastic again and you can continue pressing without removing the press cake
After expelling the press cage is cleaned by putting some seed into the funnel and turning the crank--do not use the adjustment bolt so the seed will flow freely cleaning the cap
Grease the washer at the end of the shaft of the expeller screw with a few drops of vegetable oil
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Re: Article - How to Make Cooking Oils from Scratch
« Reply #2 on: February 15, 2018, 12:32:07 PM »
I have the one noted above.  Takes lots of work (hand cranking) and seed to make a little oil. 

My opinion - if it's just to make cooking oil - then ONE (you know how one is defined right? 2 is ONE and 1 is NONE) will get you by.

Be prepared to sit and crank.  You can bubba engineer a pulley on it and power it,  I'd be careful as to the RPM's though.  Too fast = friction heat = possible heat damage to press and to oil.

IF you're looking to press oil for bio-diesel making, you'll need a BIG double-hand full of them, OR a commercial press.

Amazon carries it and another at about half the cost.

https://smile.amazon.com/gp/product/B004H2SDTM/ $163.99 & FREE Shipping 
https://smile.amazon.com/dp/B074FTVKF8/ $89.99 & FREE Shipping 

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