ArticleUsing Yeast Nutrients When I was a kid, my grandma would buy sampler packs of single-serving boxes of Kellogg’s cereal for my brothers and me. Remember those? Invariably, the last one to get eaten wasAlready a member? Log InWritten by Michael DawsonYou'll Also Like Article FREE Wort Aeration – Providing an environment to flourish Wort aeration is an important part of growing happy and healthy yeast in your fermenter. Aaron Hyde explains the how, what, why, and when of this technique. Article MEMBERS ONLY Yeast Pitching and Propagation: Techniques If there’s one piece I can recommend for yeast propagation, it’d be an Erlenmeyer flask. An Erlenmeyer flask is easy to close from contamination and take accurate measures in.