Krausen time frame

I had a batch of beer that began fermenting within 5-6 hours and everything was fine but I began to have overflow. Much of the overflow was krausen and after only ~a day and a half my krausen is gone. I have always had the krausen for at least 3-4 days per batch. There is still airlock activity so some fermentation is occurring but I am making a big beer (est 7-9% abv) and worried I will get a beer that is to sweet.

RDWHAHB. Remember every fermentation is different. Let that bad boy sit for another week, then check the gravity.

double_e5 said:

RDWHAHB. Remember every fermentation is different. Let that bad boy sit for another week, then check the gravity.

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As I plan on doing but was more concerned if i had lost something important in the krausen with the blow over.

It is fine. Blow off happens a lot. You may have lost a little bit of beer but that's it. Luckily the krausen didn't end up on the ceiling.