The Mad Millie Vegetarian rennet is a microbial rennet used to coagulate milk when making cheese. Though available as a liquid, the tablet is a more convenient solution. Rennet tablets must be dissolved in cool boiled-water (as heat and chlorine can affect the rennet's activity) and added to warm milk as indicated in your Mad Millie recipe. Rennet tablets are G.E. Free. Made from Coagulant enzyme of Mucor miehei. Product will last 36 months when stored in a cool dark place. One strip contains 10 Microbial Vegetarian Rennet Tablets Vegetarian Rennet in a convenient tablet form which is shelf stable. Each of these tablets treats 4 Litres of fresh milk. Please refer to dosage instructions on packet when using these tablets with old Mad Millie recipe booklets.