This International Standard specifies a method for the detection and enumeration of colony-forming units (CFU) of viable yeasts and/or moulds in milk and milk products by means of the colony-count technique at 25 “C The method Is applicable to ˙ˍ milk. liquid milk products, 】 dried milk, dried sweet whey, dried buttermilk, lactose, 7 cheese.
— acid casein. lactic casein, rennet casein.
— caseinate. acid whey powder.
— butter,
— trozen milk products (Including edible ices),
— custard. desserts, fermented milk and cream.
NOTE 1 This method is not suitable tor a ﹗arge number oi thermolahiie yeasts (in lresh cheese). In such cases the agar-surlace-plaung method ls preterred.
ISO 6611:1992 history
2004ISO 6611:2004 Milk and milk products - Enumeration of colony-forming units of yeasts and/or moulds - Colony-count technique at 25 °C
1992ISO 6611:1992 Milk and milk products; enumeration of colony-forming units of yeasts and/or moulds; colony-count technique at 25 C