How much enzyme does each Vegetarian Rennet tablet have? The amount of enzyme we dose into the tablets can vary slightly between batches.We ensure that all tablets contain enough enzyme to have at least 60 IMCU/tablet.Each tablet is approx 620mg. Related articles What is the strength of the Mad Millie Liquid Rennet? Can powdered milk be used to make cheese? How to Video - Vegan Halloumi What do I do with all the whey? How to Guide - Artisan Cheese