Sir,
Though this PDF starts out explaining how to make “briquettes” for cooking fuel, it eventually shows a crude oil extraction press. This could be a handy tool for supplementing one’s diet with vegetable and nut oils and also for making biodiesel (or for use in a Straight Vegetable Oil powered engine). Regards, – Hawaiian K.
Letter Re: An Oil Extraction Press that Could Prove Useful at Retreats
