So I made two batches the other day. One had a pinch of allspice and the other didn't. Other than that the two were identical. The foam in the allspice batch was really thick and dense, almost like a putty and there is a bit of it. I've never had this type of "gunk" appear before. The wife thought it was mold but idk. I'll put up photos soon. Any thoughts? Should I be worried?