How important is darkness during primary, secondary, and bottling?

[jarrodaden]

I am noticing more and more where people has blankets, etc around fermenters and I am wondering if this has something to do with darkness being ideal for fermentation.

 

[Meatyboy]

It's not about fermenting so much as sunlight skunks beer.

 

[teddy4xp]

Light in general is bad for beer, thats why we use brown bottles. Not much to do with fermentation other than protecting the beer from light since it is in a clear carboy.

 

[chezzesteak]

Paging revy.....

Its sunlight that skunks beer..keep it out of the sun and you're fine