Which to use Irish Moss or Whirlfloc?
Irish moss and whirlfloc are the same thing, it’s just that whirlfloc is pressed into a convenient tablet form. There are “kettle finings”- that is you put them in the boil to coagulate proteins. There are other types of finings that are used in beer (I never use them in beer, though) that you can use after fermentation. Some people use gelatin, and some have used isinglass. I’ve used finings in wine, when I have a wine that just won’t clear. If you do a search on “gelatin”, you’ll find lots of good advice on how to use it in secondary to clear your beer.
