byo.com skrev:Normal ale fermentation temperatures range from 68 to 72 °F (20 to 22 °C) and lager fermentation temperatures from 45 to 55 °F (7 to 13 °C). Also keep in mind that the heat generated by an active fermentation can warm a typical 5-gallon (19-L) batch of beer by 10 to 15 degrees Fahrenheit (5.5 to 8.3 degrees Celsius).
Dette er litt mer enn hva jeg har lest tidligere(ca 4C).
Er det noen som har testet dette? Romtemp vs. faktisk temp under stormgjæring i bøtta?