To use these Blomus Belo red wine glasses, simply pour your favorite red wine into them. The unique shape and size are perfect for swirling and sipping. When it comes to cleaning, you're in luck as they're dishwasher - safe. But if you prefer hand - washing, use a mild dish soap and warm water. Avoid using abrasive sponges that could scratch the glass. For storage, stack them carefully to prevent any chipping or cracking. Remember, due to the hand - blown nature of the glasses, each piece is unique, so handle them gently to keep their beauty intact. If you're not satisfied with your purchase, you can return them within 30 days.