You need a good way of collecting acorns at the right time (especially if it's white oak), you need to keep them in cool dry storage (esp. white oak), and you need a good way to mash them and hold them in a container while you rinse them (esp. red oak).
I'm in the middle of watching this series that @JillOfAllTrades@hexbear.net posted, it's pretty good.
https://hexbear.net/post/3616804
You need a good way of collecting acorns at the right time (especially if it's white oak), you need to keep them in cool dry storage (esp. white oak), and you need a good way to mash them and hold them in a container while you rinse them (esp. red oak).