It all starts with grain—mostly corn or wheat, because they’re cheap and boringly predictable. The grain gets ground up, mixed with water, and cooked into a giant, soupy porridge that smells like a breakfast you’d never want to eat. This mash is the yeast’s all-you-can-eat buffet, and it’s surprisingly quiet in a factory setting. Nobody is singing folk songs while stirring it; it’s just a lot of industrial steam and the sound of a very large, very sad pot of oatmeal.
Once the porridge cools down, the yeast is added. Yeast is the tiny, drunk party guest that shows up and starts converting all those sugars into alcohol. It’s like having a million invisible friends who work really hard to make you feel fuzzy. But unlike your college roommate’s failed homemade beer, this process is hyper-controlled for maximum efficiency.
