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petre
on Aug 5, 2022
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Using grape harvest dates to estimate summer tempe...
The color is due to the amount of time the grapes sit in a barrel after they're crushed and before pressing. Ice wine grapes are picked later but it's niche market.
cmrdporcupine
on Aug 5, 2022
[–]
Yes colour extraction is related to skin exposure after crush. It is also related to phenolic ripeness and grape variety.
pwarner
on Aug 6, 2022
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parent
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And pH, and certain enzymes help extract more color.
cmrdporcupine
on Aug 8, 2022
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root
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And temperature :-) Warming or cooling the must etc.
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