Hello,
I have a tank that was filled with must on the 21st September (vat1) and another on 25th September (vat2). Same grape type and vineyard. Same Brix at harvest as well (21.2). Vat1 is filled at approximately 60% after punchdown and Vat2 at about 80%. In both cases wild yeast. Vat1 is now at 7.5 Brix and Vat2 at 16.5.
My questions are:
- Is taking must and/or juice from one vat to the other viable or not?
- Could it harm the ongoing fermentation in any way? If one is contaminated (judging by smell, both are fine), will in that case the contamination spread to the other vat?
- Why would someone do this? Could this be done if, for example, Vat1 stops fermenting so that active yeast is added from the "fresher" Vat2?
- Or could it be the other way around, if a winemaker would be more interested to increase the amount of Saccharomyces by adding from Vat2 to Vat1 (I have read that above 4% alcohol, only Saccharomyces is active, so that could increase the proportion of that desired yeast among the wild yeasts in the "fresher" vat).
- Do I need to clean the equipment (the plastic basket for pump over and the wooden stick I use for punch downs) between each vat? I have been doing this with very warm water up to now.
Thanks.
I have a tank that was filled with must on the 21st September (vat1) and another on 25th September (vat2). Same grape type and vineyard. Same Brix at harvest as well (21.2). Vat1 is filled at approximately 60% after punchdown and Vat2 at about 80%. In both cases wild yeast. Vat1 is now at 7.5 Brix and Vat2 at 16.5.
My questions are:
- Is taking must and/or juice from one vat to the other viable or not?
- Could it harm the ongoing fermentation in any way? If one is contaminated (judging by smell, both are fine), will in that case the contamination spread to the other vat?
- Why would someone do this? Could this be done if, for example, Vat1 stops fermenting so that active yeast is added from the "fresher" Vat2?
- Or could it be the other way around, if a winemaker would be more interested to increase the amount of Saccharomyces by adding from Vat2 to Vat1 (I have read that above 4% alcohol, only Saccharomyces is active, so that could increase the proportion of that desired yeast among the wild yeasts in the "fresher" vat).
- Do I need to clean the equipment (the plastic basket for pump over and the wooden stick I use for punch downs) between each vat? I have been doing this with very warm water up to now.
Thanks.