The standard practice in the brewery I work at is to add a dose of zinc solution to the end of our boils as a yeast additive since we're an entirely stainless system. I recently came across information indicating that we're pretty much wasting our zinc solution and causing it to bind to our hot break and precipitate out.
Short of sending off samples from our post boil kettle and our heat exchanger output do any of you have any experience with this issue? Would it be more effective to autoclave our zinc solution to sterilize it and add it directly to our fermenter, or is this a minor issue?
Papers cited:
Short of sending off samples from our post boil kettle and our heat exchanger output do any of you have any experience with this issue? Would it be more effective to autoclave our zinc solution to sterilize it and add it directly to our fermenter, or is this a minor issue?
Papers cited:
- Vecseri-Hegyes, B., Fodor, P., and Hoschke, A. The role of zinc in beer production. Acta Aliment. 341373-380, 2005.
- De Nicola, Raffaele, and Graeme M. Walker. "Accumulation and cellular distribution of zinc by brewing yeast." Enzyme and Microbial Technology 44.4 (2009): 210-216.[/*]
Comment