Lately I have been adding pottasium metabisulphite to my musts prior to fermentation but I was wondering is this really neccesary when using frozen concentrates? I dont think yeast or bacteria could tolerate my deep freezer. What I was going to do was just let the must get down to a pitchable temp and pitch the starter? Anything wrong with this?
pot meta question
- Thread starter Honda88
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No, it's generally not necessary although wild yeast could probably survive in your freezer. Often frozen concentrates have sulfites added as a preservative anyway.
Sometimes, though, just while the juice thaws and before the yeast starts fermentation the must may be susceptible to contamination. It won't hurt to use k-meta as a safeguard, but you may be perfectly fine without it as well.
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