Kupzit®  is an innovative copper citrate preparation developed for the elimination of sulphide off-flavours

• Aids in elimination of sulphide off-flavours, including hydrogen sulphide odours
• Contains 2 % copper citrate and reacts quickly and specifically with sulphurous, disagreeably smelling compounds such as hydrogen sulphide and mercaptans.
• Compounds are precipitated out, and when dosed accurately, insignificantly increase the copper content of the beverage.

Dosage
Bench trials recommended
Generally dose rates are 5–20 g/100 L (50-200 ppm; 0.42-1.68 lb/1000 gal).
However in some cases up to 50g/hL (500 ppm; 4.2 lb/1000 gal) can be applied.

Usage
Prepare a slurry of Kupzit® and wine in a ratio of 1:10. Then mix into wine and stir thoroughly for even distribution. The reaction is completed within a few minutes after addition. Separation of the lees/sediments is conducted by filtration within 1–2 days. When applied properly, the copper content is not, or only slightly increased, which means in most cases after the Kupzit® treatment, blue fining is not required. Application can be conducted either separately or combined with clarification/fining. In case of a combined fining, Kupzit® is added as first component.

Storage
Store in a dry and light-protected environment. Protect from foreign odours. Reseal opened packaging tightly.