What Did The Miwok Use To Grind Acorns?
What Did The Miwok Use To Grind Acorns? The Miwok also made ‘ule’, a jelled loaf of thick acorn mush. Pounding rocks or bedrock mortar are ideal for pounding acorns. Shallow mortar holes, like the ones shown in the picture, were preferred for processing black oak acorns, while deeper holes were used for manzanita berries.