Has your milk gone sour? Don't toss it out just yet.
With years of experience in the kitchen minimizing food waste, I've found expired milk still has plenty of value.
Discover these six practical uses to make the most of it safely.
Important safety note: Never consume curdled milk, as it can cause illness.
Milk typically spoils within 3 days past its expiry date once opened. Unopened, it can last up to 2 weeks beyond.
Master these tips, and you'll never pour expired milk down the drain again. See below:

This classic use comes naturally—cheese is essentially curdled milk.
To make cottage cheese, gently heat expired milk in a double boiler until it separates. Drain through cheesecloth until thick, then mix in fresh cream, salt, and pepper.
For curdled milk, line a colander with muslin, pour it in, tie the cloth, and hang over a bowl in the fridge to drain. It's ready when it stops dripping.
Sour milk works wonders in pancakes, cakes, and waffles—the cooking process neutralizes any off flavors.
This simple swap reduces waste while delivering moist, tasty results every time.
Expired milk shines in the kitchen for more than just savory dishes.
Sour milk has long been a natural skincare staple, thanks to its lactic acid content.
For smoother, brighter skin, apply directly to your face for 5 minutes. Rinse with fresh milk, then cool water—it really works.
Repurpose spoiled milk into homemade cookies for dogs and cats.
Curdled milk can feed hens too (speed curdling by leaving it in the sun). Note: Some report milk isn't ideal for all pets—consult your vet first.
Keep deer away from your garden by pouring sour milk around plants—it acts as a natural repellent.
It's also excellent fertilizer for roses, promoting healthy growth.
Apply spoiled milk to tarnished silver, let sit overnight, then wipe clean for a brilliant polish.
Expired milk offers endless possibilities. Think twice before discarding it! For powdered milk tips, check our related guide.