Ruined 3 batches of cold brew in one week before I checked my kitchen scale with a nickel
My cold brew tasted weak and sour for 5 straight days last month, and I kept blaming the beans until I weighed a nickel on my $12 scale and it read 4.1 grams instead of 5. That tiny drift meant I was using about 20% less coffee than my recipe called for. Anyone else checked their cheap scale against a coin, or do you just trust the number?