Ferrozin, a potassium ferrocyanide, also called potassium hexacyanoferrate-II or yellow prussiate of potash. Ferrozin reduces increased heavy metal contents to innocuous quantities. Ferrozin is available in crystalline form or as pellets for smaller dosages. The consequence of an increased contamination with metals, particularly with iron, is a persistent metal haze which is formed by combinations of metals and proteins, tannins (dark blue to black casse) or phosphates (white casse, phosphatic casse, ferric casse). Moreover increased metal contents can negatively affect taste.
The wine ages quicker, because the catalyst effect of the metals leads to oxidation. In addition, increased metal contents can inhibit fermentation. For this reason, especially when making sparkling wine, great importance has to be attached to the correct Ferrozin demand. Furthermore high metal contents reduce the efficiency of ascorbic acid. Ferrozin also considerably improves the clarifying effect as well as filtrability.
Erbslöh Geisenheim AG is a supplier of fruit-based beverages for the beverage industry. This company has a wide variety of products such as wines, beers, spirits, and juices. They use many filtration methods including filter sheets that contain a cross-linked fibre structure as well as special cellulose fibres. This company also uses modern distillation technologies to produce their high quality spirits.
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