American Mug Pottery Butter Keeper/Butter Dish, Made in USA, Yellow Proudly handcrafted in the USA High quality glazed stoneware keeper keeps butter fresh for 30 days w/o refrigeration, no odors or spoilage To use: pour cold water into base, pack lid with softened butter, replace lid into base Dishwasher Safe Holds 1 stick of butter; change water every 2-4 days