oil press

Does anyone no where I can find a small scale oil press? - Hand crank would be idea.

Have walnut trees and want to make walnut oil!

This isn't off-the-shelf, but Paul posted some plans a while back in a thread about sunflower oil.

Walnut oil is particularly quick to go rancid, so it might be worth taking a few steps to reduce the amount of metal that gets into the oil. Maybe a press made of stainless would be better in that regard, than one made of carbon steel, but I really don't know.

This might not matter: if you're using it right away, on salads, there's no problem, and if you're storing it for use as a furniture finish, the worst case is that you'll get "boiled" walnut oil. But storing it for food use might be tricky.

Horizon Herbs sells a press if you're not inclined to build your own and you've got some lucre burning a hole in your pocket.

http://attra.ncat.org/attra-pub/oilseed.html

I found this article on how to build your own.

Walnut oil is particularly quick to go rancid, so it might be worth taking a few steps to reduce the amount of metal that gets into the oil.

Do try to keep heavy metals such as iron out of it, since metal radicals are some of the most promiscuous.  If anybody hears of a good carbon fibre press, let me know.
Meanwhile, put a good fat-soluble antioxidant in your oil, seal airtight, then refrigerate, and it will keep for years, as the oxidation process will proceed very, very, very slowly . Ascorbyl palmitate (fat-soluble vitamin C) is a good one.
http://www.vitaminshoppe.com/store/en/browse/sku_detail.jsp?id=SR-1106&sourceType=cs&source=FG&cm_mmc=Shopping%20Engines-_-googleproduct-_-Ascorbyl%20Palmitate%20-%204%20Ounces%20Powder%20-%20Ascorbyl%20Palmitate-_-SR-1106&ci_src=14110944&ci_sku=SR-1106

So is the amino acid Taurine.
http://www.iherb.com/Now-Foods-Taurine-Powder-8-oz-227-g/7425?utm_source=gb&utm_medium=f2

Best is BHT, which by the way is non-toxic and incidentally, prevents cancer and herpes. But it's slightly bitter, so best to use a synergistic blend of 5% BHT, 70% A.P, 25% Taurine. 1/4 to 1/2 tsp per litre.

go to lehmans.com

looks good, but is $189