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Per 100g
Nutrition data source: USDA FoodData Central
Common measurement equivalents in grams
Yes, Whirlfloc is a food-grade brewing additive made from carrageenan, a natural seaweed extract. It is used in very small quantities and primarily precipitates out of the beer along with proteins, meaning very little remains in the final consumed product.
No, Whirlfloc tablets contain zero calories, protein, carbohydrates, or fat. Because the tablet is used to remove proteins and then settles at the bottom of the kettle as trub, it does not impact the nutritional profile of the finished beverage.
Yes, Whirlfloc is 100% vegan and vegetarian. It is derived entirely from Irish Moss and other seaweed sources, making it a popular alternative to animal-based fining agents like gelatin or isinglass.
Yes, Whirlfloc tablets are gluten-free. They are composed of seaweed extracts and do not contain any wheat, barley, or rye derivatives, making them safe for use in brewing gluten-free or gluten-reduced beverages.
Whirlfloc should be added during the last 5 to 15 minutes of the boil. Adding it too early can denature the active carrageenan, while adding it too late may not allow the tablet enough time to dissolve and react with the haze-causing proteins.
For a standard 5-gallon (19-liter) batch, half of a tablet is usually sufficient. Using a full tablet for smaller batches can lead to 'over-fining,' which may result in loose, fluffy sediment that is difficult to separate from the clear wort.
When used in the recommended dosages, Whirlfloc does not impart any flavor, aroma, or color to the finished beer. Its only function is to clarify the liquid by binding to proteins and settling them out of suspension.
Whirlfloc Tablet is a versatile ingredient found in cuisines around the world. With its calories per 100g and valuable grams of protein, it's a nutritious addition to many dishes.
Explore more ingredients in the brewing additive category with complete nutrition information.
View all brewing additive →Discover 1 recipes featuring whirlfloc tablet with step-by-step instructions.
Browse recipes →Store Whirlfloc tablets in a cool, dry place in an airtight container. They are sensitive to moisture, so keeping them sealed prevents them from softening or losing their structural integrity before use.
Whirlfloc tablets typically have a shelf life of 1 to 2 years. While they do not become toxic after this period, their ability to effectively coagulate proteins diminishes over time, leading to less clarity in your brew.
Whirlfloc is a concentrated, tabletized version of Irish Moss that contains purified carrageenan. While both are derived from seaweed, Whirlfloc is generally considered more convenient and effective at creating a 'hot break' than raw Irish Moss flakes.