Expiration & Storage Tips
When does milk expire?
Unopened milk typically lasts between 5-7 days beyond the printed date on the package if it is refrigerated properly. However, once it has been opened, the shelf life decreases to about 2-3 days. This timeframe may change slightly depending on the variety of milk. For example, whole milk might spoil a bit quicker than skim due to its higher fat content. Fat free milk usually lasts longer. If you decide to freeze milk, it can last up to 6 months. However, the texture might change making it less ideal to drink but still perfectly safe to use in cooking or baking.
How do you tell if milk is bad?
To tell if milk has gone bad, start by looking at its appearance. If you notice it has become chunky or has developed a thick texture, it is likely spoiled. The color may also change slightly, becoming more yellow. Another telltale sign is smell. Spoiled milk often has a sour, unpleasant odor. For a more definitive test, you can taste a small amount (just a sip). If it tastes sour or off, it's best to discard it to avoid foodborne illness.
Tips for storing milk to extend shelf life
• Always store milk in the refrigerator, ideally at a temperature between 38 and 40 degrees Fahrenheit.
• Avoid storing milk in the refrigerator door, as this area experiences the most fluctuation in temperature. Instead, store it towards the back of a shelf where the temperature is the most stable.
• If you're not going to use milk before its expiration date, you can freeze it. Before freezing, shake it well. Pour off some milk to allow room for expansion during freezing. Freeze in small quantities for easier thawing.
• Defrost frozen milk in the refrigerator. It will take a day or two for it to fully thaw.
• After defrosting, shake well before using to redistribute the fat and proteins evenly.
• Do not return unused milk back into the original container, this could introduce bacteria and speed up spoilage.