Irish Moss

Irish Moss is a natural, seaweed-derived fining agent widely used in home brewing to produce clear, haze-free beer without the need for a filter. It works by accelerating protein coagulation near the end of the boil, which helps prevent chill haze in your finished beer. Add 1 teaspoon per 19L (5-gallon) batch with 15 minutes remaining in the boil — it's a simple addition that many home brewers use in every single batch.