Question

HELP PLEASE!!!!! does the pH level of milk increase or decrease after being kept *refrigerated* for five days?

Answer 1

Answer: Once you have purchased milk and refrigerated it promptly, it should retain its fresh taste for one to five days beyond the “sell-by” date if kept at the proper temperature. If it spoils before the date expires, this indicates it was not handled properly, and it should be returned to the store for a refund.

Explanation:

fresh from the cow typically has a pH between 6.5 and 6.7. The pH of milk changes over time. As milk goes sour, it becomes more acidic and the pH gets lower. This occurs as bacteria in milk convert the sugar lactose into lactic acid.

Answer 2

Explanation:

pH value of milk will increase if we kept it in refrigerator because in Milk pH during heating depended on CO2 concentration, temperature, and pressure. During heating of milk without added CO2, pH decreased linearly as a function of increasing temperature but was independent of pressure.