| Now we're almost ready to ferment. But first, we quickly cool the wort with a "heat exchanger." Why bother? Well, yeast is a lot like you and me - drop it in near-boiling liquid and it quickly gets uncomfortable! |
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(As an eco-friendly aside, we start the next brew with the water that is warmed up during the heat exchange). Once the wort has cooled down sufficiently (to around 60° F for ales or 50° F for lagers), we pump it into fermentation tanks and add yeast. |
