Cool Beer Brewing
I'm surprised that there has been little or no discussion regarding
'beerstone' or related deposits and how they relate to infections and/or
off flavors in homebrew. I would love to have some informed discussion
on the topic as I suspect there is something missing in the standard
'clean & sterilze' regimine of homebrewers, especially for those
utilizing hard water in their processes.
Certain situations can result in the creation of deposits such as beerstone or hard-water stains in fermentation and associated transfer equipment. In my observations these deposits could easily contain organoleptic compounds as well as bacterial endospores and possibly even some yeasts. With this in mind, consider Iodophore and intermittent reports of 'off flavors' in homebrew. Wouldn't it be possible for the Iodine to sublime and be a component of these deposits? What happens as an acidic wert interacts with these deposits? Wouldn't the deposits return to solution and contribute something undesireable to the brew? What if the deposits contain undesirable spores - wouldn't it be possible for the bio-film to act as a temporary 'shield' protecting the undesirables from contact sanitizers?
Certain situations can result in the creation of deposits such as beerstone or hard-water stains in fermentation and associated transfer equipment. In my observations these deposits could easily contain organoleptic compounds as well as bacterial endospores and possibly even some yeasts. With this in mind, consider Iodophore and intermittent reports of 'off flavors' in homebrew. Wouldn't it be possible for the Iodine to sublime and be a component of these deposits? What happens as an acidic wert interacts with these deposits? Wouldn't the deposits return to solution and contribute something undesireable to the brew? What if the deposits contain undesirable spores - wouldn't it be possible for the bio-film to act as a temporary 'shield' protecting the undesirables from contact sanitizers?
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