It’s as easy as A, B, Sea: I for Irish Moss

C. crispus: Irish Moss

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Irish moss is also known as carageen. Carageen is a deep red alga that grows around rocky substrates along both coasts of of the north Atlantic Ocean. Carrageenan is a gelatinous material extracted from Irish Moss and can be used as a vegetarian alternative to gelatin. It is found in ice cream, soy milk, diet soda and even used in fake saliva for movie effects.