Definition: ferric casse

Accidental alteration of the clarity of wine, which also affects its taste. It is caused by excessive iron content. In the past, when the harvest was only in contact with wood and bare feet, this problem was unknown. Then, with the use of tools and equipment that brought the wine into contact with iron and copper, the problem could occur. For this reason, synthetic materials and stainless steel are used for harvesting equipment and vats.