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Pressing walnuts for oil

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default Pressing walnuts for oil

Post by Guest on 6th June 2010, 1:54 pm

For anyone who has a good supply of walnuts, loves walnut oil on salad, but can't work out how to create enough force to press the walnuts (and doesn't have enough to use a commercial press) this may be the answer for you!



The clear bottle is burning alcohol to heat the press. The small jam jar is the oil that cleared completely in 24hrs (the sediment is like peanut butter but walnut, so very little waste).

It is made by Piteba but the oak frame/support was made by Wood Troll. It will also press seeds, like sunflower.

We are really pleased with it and are keenly looking forward to the next crop of walnuts so that we can produce about 400ml of oil, which is what we use in the summer on salads.

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Post by Wilhelm Von Rhomboid on 6th June 2010, 1:59 pm

What quantity of walnuts was used to produce 400ml of oil?

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Post by Guest on 6th June 2010, 2:14 pm

It is said that 1kg of shelled walnuts (that is 1kg after shelling) gives 75cl of oil, and I say that is achievable with this press.

The small quantity seen in the picture came from a "two handed" handful of shell nuts, which is all I had left from last harvest. I forgot to weigh them before pressing!

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default Re: Pressing walnuts for oil

Post by Wilhelm Von Rhomboid on 6th June 2010, 2:45 pm

Hmmm. So 20kg of walnuts = approx a litre and a half of oil. I think we would find it hard to justify the cost of the press at that rate. To say nothing of sacrificing our years walnuts - we rely so heavily on them for making cakes and pesto (and of course Nocino!!!).

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Post by Guest on 7th June 2010, 8:42 pm

The "not sacrificing all the walnuts" is why we have gone for the small press. If you have 20 - 25kg you can take them to the local press here and they will exchange it for oil and/or money but that would probably take all our walnuts.

I'm not sure of your maths Billy! 75cl (a bottle) x 2 = 1.5 litres yes? so thats 2kg of shelled nuts. And that is a huge amount of walnut oil. A friend who did the commercial route had 2litres in 200ml cans and had to give most of it away as it only has a shelf life of 18mths.

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default Re: Pressing walnuts for oil

Post by Wilhelm Von Rhomboid on 7th June 2010, 8:58 pm

Ah, yes. Sorry. I was confused by your switch from ml to cl between the first and second post.
75cl from 1kg is an astounding amount. Olive oil, I happen to know weigh 920g/litre, so assuming olive oil and walnut oil are fairly similar that means you are getting 690g of oil from each kilo of nuts. By comparison you need around 5 kilos of olives to produce a litre of oil.
Hmm, may have to look into this. I can buy walnuts at extremely low price as well - less than 1Euro/kg, probably substantially less for bulk....hmmm...

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Post by GB on 11th August 2010, 10:32 pm

WOW! Am liking that press

Will it only do shelled nutmeats? And when you say it does sunflower seeds, is that shell on or shell off?

Actually, might just go off and check their site
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Post by Compostwoman on 11th August 2010, 11:21 pm

Have gone to look as well, thanks Zoe and Wood Troll for the heads up!

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Post by GB on 11th August 2010, 11:49 pm

Thats a cracking little kitchen gizzmo!

I cant tell if I would have to shell my palm nuts first or not but will keep popping them in the freezer till I get the money together for my new "CANT LIVE WITHOUT IT!" thingy

I'm sure if I ask them they can tell me about the nuts.

And best of all just planted lots of black oilseed sunflowers. For the birds but they can be diverted to me instead
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default Re: Pressing walnuts for oil

Post by Guest on 26th August 2010, 7:03 pm

Sorry haven't been around for a while. Yes it does do sunflower seed with out the need to shell.

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