Tiny white flakes in milk don’t always mean it has spoiled; they may be dried milk residue or separated fat. However, thick clumps, a sour smell, or an unusual texture can indicate spoilage, even before the expiration date.

Always check the milk’s smell, appearance, and storage conditions before deciding whether to use it. If you notice unusual flakes or clots in raw milk, discard it rather than assuming they’re harmless, as they may indicate an infection….SEE BELOW