Grape must addition to beer wort

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BoozeMedic

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If I wanted to add crushed grapes and juice from my vines to a beer in the fermenter, how do I avoid infection? Sulfite the must 24 hours before mixing with the wort and then pitch?

I was thinking for a barley-wine/wine hybrid I could maybe fermenting the wort to 90% again with ale yeast, cold crash and filter with a 1 micron filter to knock down the ale yeast count, bring up to pitching temp and then add an aggressive, resilient wine yeast like K1-V1116.

But that doesn't help me with wanting to make, say, a grape must IPA or saison. I think potassium metabisulfute might be the only solution?

Thoughts/experiences? Looking for a homebrew option that would also work on the commercial scale
 
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