Handle the test report of milk-containing beverages GB T 21732 test method.
1. Overview. Milk-containing beverages refer to beverages made from milk as the main raw material and processed into them, including fermented milk-containing beverages and blended milk-containing beverages. In order to ensure the quality and safety of milk-containing beverages, China has formulated the national standard GB T 21732-2008 "Milk-containing Beverages", which stipulates the testing methods for milk-containing beverages. This article will introduce the test method of GB T 21732 standard and how to apply for a test report for dairy beverages.
2. Detection method of GB T 21732 standard.
1.Sensory indicators.
Sensory indicators are important indicators to evaluate the quality of milk-containing beverages, including color, taste, smell, tissue status, etc. According to the GB T 21732 standard, the sensory indicators of milk-containing beverages should meet the following requirements:
1) Color: It should have the color that the variety should have;
2) Taste: It should have a pure taste and no peculiar smell;
3) Smell: It should have a pure fragrance and no peculiar smell;
4) Tissue state: it should be uniform and free of impurities.
2.Physical and chemical indicators.
Physical and chemical indicators are important indicators to evaluate the nutritional composition and safety of dairy beverages, including the detection of protein, fat, carbohydrates, total solids, etc. According to the GB T 21732 standard, the physical and chemical indexes of milk-containing beverages should meet the following requirements:
1) Protein: according to GB 50095-2016 "National Food Safety Standard Determination of Protein in Food";
2) Fat: according to GB T 50096-2003 "Determination of Fat in Food";
3) Carbohydrates: according to GB 50098-2016 "National Food Safety Standard Determination of Fructose, Glucose, Sucrose, Maltose and Lactose in Food" for testing;
4) Total solids: detected in accordance with GB T 12143-2008 "General Analytical Methods for Beverages".
3.Microbiological indicators.
Microbial indicators are important indicators to evaluate the hygienic status of milk-containing beverages, including the detection of total number of colonies and coliform bacteria. According to the GB T 21732 standard, the microbiological indicators of milk-containing beverages should meet the following requirements:
1) Total number of colonies: according to GB 47892-2016 "National Food Safety Standard Food Microbiology Test Determination of Total Bacterial Count";
2) Coliforms: according to GB 47893-2016 "National Food Safety Standard Food Microbiology Test Coliform Count" for testing.
3. How to handle the test report of milk-containing beverages.
1.Choose the right testing facility.
You can choose a third-party testing agency with relevant qualifications and experience to test milk-containing beverages.
2.Submit samples and fill out the application form.
Submit the sample of the milk-containing beverage to the testing agency and fill in the application form, including the product name, specification, production date, shelf life and other information.
3.Wait for test results and issuance of reports.
Wait for the testing institution to complete the testing of various indicators and obtain the test results. If all indicators meet the requirements of the GB T 21732 standard, the testing agency will issue a test report for milk-containing beverages.