Needed to make most types of cheese, rennets come in a variety of choices, must be refridgerated and are used sparingly. We are beginning with small amounts, please email Jess@farmeratthedoor.com for larger sizes or different options available from https://cheesemaking.com/collections/new-england-cheese-making-supply-company-inc?gad_source=1&gclid=Cj0KCQjw3vO3BhCqARIsAEWblcAyIlG3rOgoA9mFdVUKnaBPYvOB1tiGxsuwwlSpZnS7QYWPRvtCbeYaAi-rEALw_wcB
Provided by New England Cheesemaking Supply Company, Northampton Ma.