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Simple Tips to Keep Milk Fresh Longer and Reduce Food Spoilage
Milk is a staple kitchen item and a versatile ingredient used in numerous ways. However, dairy products are susceptible to spoilage if not properly stored, leading to unnecessary food waste and frustration. Discover effective methods to keep milk fresh and extend its usability.
Understanding Milk Shelf Life
Food storage experts suggest there’s an easy hack to maintain milk’s freshness for up to three weeks, effectively preventing it from souring or curdling prematurely. Once opened, milk generally remains consumable for approximately four to seven days beyond the printed date when refrigerated. Unopened whole milk typically lasts five to seven days past this date, while reduced-fat and skim milk options often stay fresh for more than seven days. Fat-free and lactose-free varieties usually boast the longest shelf life, remaining viable for seven to ten days beyond the labeled date when correctly refrigerated.
The Salt Hack for Extended Freshness
Even after opening, milk can last for about one to two weeks before spoiling. However, a practical tip can further prolong its freshness.
The Expert Recommendation
Experts from Wheeldon Brother advise: “Incorporating a small pinch of salt into the carton and shaking it to ensure uniform salt dispersal can be beneficial.”
How Salt Preserves Milk
“The mineral components in salt impede milk spoilage by extracting water molecules, thereby lowering water activity, which in turn, restricts bacterial proliferation and helps to keep milk fresh.”

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Additional Milk Storage Strategies
Beyond the salt method, several other strategies can help extend the shelf life of milk and minimize dairy product waste.
Optimal Milk Selection and Storage Practices
Choose Milk with a Later Expiration Date
Experts recommend selecting milk with the most extended expiration date available. It is advisable to check the dates on the cartons and choose the container with the latest expiry.
Ideal Refrigerator Placement
While many commonly store milk on the refrigerator door, it is preferable to position it on a shelf where temperatures are consistently colder and more stable.
Maintain Consistent Cold Temperatures
Food experts further suggest: “Dairy products are best kept at the rear of the refrigerator, as the front and door areas are subject to warmer air exposure each time the refrigerator door is opened.”
Avoid Leaving Milk at Room Temperature
“It is also crucial to avoid leaving milk at room temperature for extended periods to maintain its quality and freshness. Prompt refrigeration is key to preventing food spoilage of dairy products.”