Rev. Rul. 62-166

The use of the pectolytic enzyme, `Klerzyme Liquid,' derived from Aspergillus Niger, in amounts not exceeding one-half pound per 1,000 gallons of wine to clarify wine, within the general limitations of section 240.524 of the Wine Regulations, is considered as being consistent with good commercial practice. Winemakers desiring to use `Klerzyme Liquid' in the clarification of wine may obtain approval of the Assistant Regional Commissioner, Alcohol and Tobacco Tax, by filing notice pursuant to the provisions of section 240.1052 of the regulations.

This product should be designated as `Klerzyme 200.'