Take the 2-minute tour ×
Homebrewing Stack Exchange is a question and answer site for dedicated home brewers and serious enthusiasts. It's 100% free, no registration required.

I've heard that it helps clear the beer, but how does it do that, and how is it used? Further, are there any tradeoffs associated with using it?

share|improve this question
add comment

1 Answer 1

up vote 8 down vote accepted

Irish moss is added to the boil for the last 10-15 minutes. It acts as a clarifying agent by attracting proteins and other solids in the wort, causing them to form larger particles that are more easily removed and/or flocculate out. Consequently, it reduces chill haze in the beer later on.

Although it doesn't exactly smell pleasant by itself, it doesn't add any flavors or aromas to the beer, especially because so little of it is needed to take advantage of its clarifying effects.

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.