While you *can* store milk with turmeric added overnight, it's best to consume it fresh or refrigerate it immediately and consume within 24 hours to maintain optimal flavor and prevent potential spoilage.
Leaving milk at room temperature, even with turmeric, encourages bacterial growth. Turmeric itself has some antimicrobial properties, but it's not a substitute for proper refrigeration. The longer milk sits out, the higher the risk of spoilage and potential foodborne illness. Refrigeration significantly slows down bacterial growth, preserving the milk's quality and safety for a longer period. If you prepare turmeric milk, it's best to drink it right away. If you can't, cool it down quickly and store it in the refrigerator. This will help maintain its freshness and prevent any unwanted changes in taste or texture.
To maximize the benefits of turmeric, add a pinch of black pepper to your milk. Piperine, a compound in black pepper, significantly enhances the absorption of curcumin, the active compound in turmeric.