Curtains can be both a good and bad idea in a kitchen. In fact, they can absorb smells and cooking odors, so we don't recommend them in the smallest ones. On the contrary, they can be a stylish idea in larger and open-plan kitchens that are well-ventilated. If you're not too sure or your kitchen is medium-sized, a good compromise is to opt for smaller valances: that way, you'll still have a decorative statement and a chance to block direct sunlight, but you won't have long drapey curtains in the way when cooking.