Softened butter on freshly baked bread is one of life's little luxuries. But butter stored in the refrigerator is impossible to spread without tearing the bread. This porcelain Butter Keeper from Fox Run solves the problem by enabling you to safely store your butter out of the refrigerator, so it stays soft and spreadable. White Ceramic; dishwasher safe. Fill the base of the butter keeper with ¼ cup of cold water. Pack softened butter into the cup of the lid and invert into the base of the butter keeper. The water creates a complete seal around the cup to keep the butter fresh. For best results, store away from sunlight, stove, or oven. Replace the water in the base of the butter keeper every three days with fresh cold water. Wash the butter keeper thoroughly in between use. Not recommended for processed cheeses or foodstuffs. NOTE: Due to the manufacturing process, the insert of the butter keeper may not sit flat on the base and may "jiggle" when touched; this is normal and is not a defect.