Of course you can, provided that the milk has been stored correctly (ie in a refrigerator/fridge) and there is no apparent spoiling. Expiry dates on food have quite a bit of leeway, so use common sense when deciding whether or no food is edible. Some food well past its 'expiry date' is still perfectly edible. We throw away far too much food in the Western world - food that is perfectly OK - shameful really when there are millions starving in the world.
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