Wisconsin Administrative Code
Department of Agriculture, Trade and Consumer Protection
ATCP 55-89 - Food, Lodging, and Recreation Safety
Chapter ATCP 65 - Milk And Milk Products
Subchapter V - Safety and Quality Standards
Section ATCP 65.74 - Milk and dairy products; quality standards

Universal Citation: WI Admin Code ยง ATCP 65.74

Current through August 26, 2024

(1) MILK HELD AT DAIRY PLANT; BACTERIAL COUNT. The bacterial count of commingled grade A milk held at a dairy plant before pasteurization may not exceed 300,000 per ml. The bacterial count of grade B milk held at a dairy plant before pasteurization or processing may not exceed 750,000 per ml.

(2) PASTEURIZED GRADE A DAIRY PRODUCTS.

(a) Bacterial counts in pasteurized grade A dairy products other than cultured dairy products may not exceed the following levels:
1. 20,000 per ml., except as provided in subd. 2. and 3.

2. 10,000 per g. for nonfat dry milk.

3. 30,000 per ml. for condensed milk, whey, whey products, and dried whey.

(b) Coliform counts in pasteurized grade A dairy products may not exceed 10 per ml. or per gram, except that coliform counts in bulk milk tanker shipments of pasteurized grade A dairy products may not exceed 100 per ml.

(c) In pasteurized grade A milk without added flavors or ingredients, other than vitamins, there shall be fewer than 350 milliunits of phosphatase per liter as determined by the Fluorophos ALP method, the Charm Paslite Alkaline Phosphatase method or another test method approved by the department.

(d) The yeast and mold count of pasteurized cottage cheese may not exceed 10 per gram.

(3) PASTEURIZED GRADE B DAIRY PRODUCTS.

(a) Bacterial counts in pasteurized grade B dairy products, other than cultured dairy products or frozen desserts containing nuts or other inclusions, may not exceed the following levels:
1. 20,000 per ml., except as provided in subd. 2. or 3.

2. 30,000 per ml. for condensed milk, whey, whey products, dried whey, and nonfat dry milk.

3. 50,000 per gram for frozen desserts, except that the bacterial count for frozen-dessert mixes may not exceed 20,000 per gram.

(b) Coliform counts in pasteurized grade B dairy products, other than grade B dairy products made with natural or added cultures and all natural cheeses, may not exceed 10 per ml. or per gram, except that coliform counts in bulk milk tanker shipments may not exceed 100 per ml.

(4) FORTIFIED DAIRY PRODUCTS. Whenever milk or a fluid milk product is fortified with vitamin A or D the fortification shall comply with Appendix O of the PMO.

(5) PATHOGEN CONFIRMED IN READY-TO-EAT DAIRY PRODUCT; SALE PROHIBITED. A dairy plant operator may not sell or distribute any ready-to-eat dairy product in which a microbiological test or laboratory analysis has confirmed the presence of a pathogenic organism or toxin. Results of the microbiological test or laboratory test shall be reported to the division, under s. ATCP 65.46(2).

Copies of PMO Appendix O are on file with the department and the legislative reference bureau. Copies may be obtained from the department at cost or online at: www.fda.gov/Food/GuidanceRegulation/GuidanceDocumentsRegulatoryInformation/Milk.

Disclaimer: These regulations may not be the most recent version. Wisconsin may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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