Package of 10 Tablets, each good for 5 gallons of wort. Whirlfloc is powderized and pelletized Irish Moss, so it works as a negatively charged clarifier when added to the boil. When used in conjunction with a whirlpool, it will attract trub in the kettle and help it settle out before you transfer to your fermentor.
Instrustions for Use: Add 1 tablet of Whirlfloc per 5 gallons to the end of your boil, 15 or 20 minutes left. Make a whirlpool before you add the Whirlfloc, and allow it to settle on it's own with the Whirlfloc in solution. This will encourage all of the trub to settle in the middle of the kettle.