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The Cellar after Harvest’s Dust Settles (Wine & Grapes U.)

Photo courtesy Wine & Grapes U.

Photo courtesy Wine & Grapes U.

“Now is a good time to make sure you are monitoring your malolactic fermentations.  Ensure all of your barrels or tanks have been appropriately inoculated, or have started naturally, and get some initial readings on the malic acid concentration.

If you have a spectrophotometer, you can purchase enzymatic kits to measure the concentration of malic acid in your wine over time.  Wines with less than 30 mg/100 mL of malic acid are considered “dry” for MLF or MLF-stable for bottling.

However, winemakers can also monitor malic acid degradation through the use of paper chromatography kits.  These kits are easy enough for home winemakers to use and can also be applied at the commercial level.”

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The Cellar after Harvest’s Dust Settles