Carrageenan kettle finings are an effective way to improve flocculation and clarity in the kettle and throughout the rest of the brewing process. The active ingredient Carrageenan is kappa carrageenan, a high molecular weight polysaccharide derived from red seaweed. When added near the end of the boil, carrageenan binds to haze-forming proteins and other small particles and flocculates rapidly, resulting in improved wort and beer clarity. Add 1 teaspoon per 5 gallons.