This is a really old way of making a coffee like drink, it's ok as a stand by and I much prefer tea but it might be handy for some of you dedicated coffee drinkers out there
gather plenty of acorns, for every 2lbs you get about 4 oz of coffee after discarding, shelling and roasting
shell the acorns and chew one, if they're too bitter leach in water for 24 to 48 hours
now there's 2 ways of doing this, the easy way or the hard way! The easy way is to use a blender, the hard way is a pestle and mortar, either way reduce your acorns down to a crumbly consistency
then slowly roast in a dry pan. You'll be surprised how much steam comes off them!!
once there's no more steam coming off them put back in your blender and grind them again, then back in the pan for a second time, then repeat the process one more time.
by the third roasting and grinding the acorns will be dark in colour and finely ground, they will also smell very coffee like! But this was all I got from 2lbs of acorns!!!
and the taste, it's quite coffee like and quite mild, I'm sure a lot of coffee drinkers will be pleasantly surprised by it's taste!