Are the Craft Series yeasts Kosher? Nat February 04, 2020 09:22 Updated Follow No unfortunately the finished product is not Kosher certified. It is also packed on the same line as other non Kosher products as we do with porcine gelatine and dairy products. So far there’s not been enough demand for Kosher homebrewing products in order to justify our product to to go through this certification. Related articles Yeast strain information How do I choose which yeast to use? What species of yeast do you use ? Do you only have 10g packs of yeast available? What yeast would you recommend for Sake?