How to brew, kapittel: is my beer ruined?
Symptom: White stuff/brown stuff/green stuff is floating/growing/moving.
Cause 1: Normal Fermentation The first time you look inside your fermentor, you will be treated to an amazing sight. There will be whitish yellow-brown foam on top of the wort, containing greenish areas of hops and resins. This is perfectly normal. Even if it appears slightly slimy, it is probably normal. Only if something hairy starts growing on top of the wort should you be concerned. I remember one guy reporting a dead bat floating in his fermentor...That was definitely cause for alarm.
Cure: Get another bat.
Cause 2: Mold A simple case of mold.
Cure: Mold can usually be just skimmed off with no lasting effect on the beer's flavor. Withdraw a sample of the wort with a siphon or turkey baster and taste it. If it tastes foul then its not worth keeping. Otherwise the beer was probably not harmed. Infections in beer caused by molds are not dangerous. Be meticulous in your sanitation and you should not have any problems.
Etter å ha lest Palmers ord skummet jeg og en kamerat av mugg i et av hans brygg og dette brygget endte bra.