Keep milk on the shelf
We’re so used to storing beverages in the door of the fridge, including milk. You may even keep your butter in the door. The problem with this is that the door is the closest to outside of the fridge, meaning it’s the warmest part. Putting dairy products in the door puts them at risk of spoiling, so store your milk on the actual fridge shelves. Ironically, there is one way that warmth can extend the life of milk: research shows that boiling milk before placing it in the fridge can kill off extra bacteria – like an additional form of pasteurization – to help extend its shelf life by weeks.