PSA for anyone who tries this, you want acorns from the white oak group (including blue oak and live oak), not red or black. otherwise you will have so many tannins that you'll be soaking them for ten million years
also oak weevils are harmless and edible, though I personally am not that brave. but it reassured me given that 100% of my acorn haul had weevils (I just cut around the damaged bits)