Talk:Humming Reactant

I'm sorry, I don't get this...I spend months tutoring my assistants and weeks waiting for them to learn new recipes and only rarely get a reactant. Then when I've researched my way to the next tier, I will NEVER make one of these recipes I just researched again because I will NEVER get a reactant at the previous level! Or am I missing something? 184.91.138.242 11:47, May 20, 2013 (UTC)Kathali