heat stability of sorbate

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Every year I make Boiled Apple Cider, boil one gallon of cider down to 1 pint. Most of the time the cider contains sorbate. Is the sorbate still active after boiling or more to the point can I use this for chaptalizing a must or would the sorbate still be active and suppress the yeast reproduction?
 
Every year I make Boiled Apple Cider, boil one gallon of cider down to 1 pint. Most of the time the cider contains sorbate. Is the sorbate still active after boiling or more to the point can I use this for chaptalizing a must or would the sorbate still be active and suppress the yeast reproduction?
wet boiling sorbate is unstable and won't act as a preservative
 
Top of the Hill 2020 - 75% Amador Cabernet Sauvignon with 25% Dineen Vineyard Cabernet Sauvignon

This is one of my winemaking apprentices' blends in a split (1/2 bottle) from my cooler (Tim is my apprentice living in Baja Mexico)

Appearance - purple ink

Smell - good nose - figs, pomegranates, black sweet and sour licorice, sauteed hamburger

Tannin - good

Acid - good, maybe slightly high but not by much

Flavour - this is really unique and tasty with a really interesting long finish. A really good red wine IMHO. I score it "very good".

If you can buy Amador Cabernet Sauvignon expect the fig and pomegranate smell and flavour unique to Amador.
 
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