What is Copper?
Copper sulphate is used as a fining agent in the wine making process to remove unwanted hydrogen sulphides and other sulphide like aromas in wine.
No of Tests
Why test for Copper in wine?
Instability in the wine, which is initially manifested as a white haze (white wines) and later as a reddish-brow precipitate, could result from storage of bottled wine containing levels of copper above 0.5 mg/L. Unless exposed to significant airborne pollution or vineyard sprays, increased concentrations in wine result from contamination during post fermentation processing. It is important to measure copper levels as excessive levels are toxic.