How should I store and carry the bar without it becoming messy? — "CHOCO" milk hazelnut bar, 50g

Because the bar has a chocolate coating, heat is the main thing to watch. In a warm room, in a car, or in a pocket close to the body, the chocolate layer can soften and the bar can become sticky. For everyday carrying, it is fine to put the sealed bar in a bag, desk drawer, or gym locker — the places mentioned as typical for this product. Just avoid leaving it in direct sunlight or in a hot environment for a long time.

At home, a cool, dry cupboard is usually enough. Once the wrapper is opened, the bar is best eaten at that time. If you do not finish it, store the remainder in a cool place and eat it within a short time, as exposure to air can make the date and nut base dry out or the chocolate lose its texture. Always check the best-before date on the packet before consuming.

No special refrigeration is needed, though in very warm weather you can refrigerate it for a short time if you prefer a firmer chocolate coating. If it has softened, that is a texture change, not a safety issue, as long as it has been stored sensibly.