Enjoy perfectly spreadable butter every day with the Kilner Glass Butter Crock.This clever, traditional design keeps butter fresh at room temperaturewithout refrigerationso its always soft and ready to use. With a 200ml capacity, its ideal for storing a standard block of butter in a stylish, practical way.Simply pack softened butter into the bell-shaped lid, press out any air pockets, then add 70ml of cold water to the base. The water creates an airtight seal, keeping butter fresh for up to a weekjust replace the water every 23 days. Crafted from durable soda lime glass, this butter crock combines Kilners classic styling with everyday functionality.Perfect for any kitchen or breakfast table, the Kilner Glass Butter Crock is an essential for butter loversand pairs beautifully with theKilner Butter Churner.The original, the best and sustainable:Each jar is made from high-quality soda lime glass material with pristine clarity and consistent wall thickness, ensuring no weak points. The glass jar and silicone lifter are dishwasher safe. Glass is best for storing/preserving and transporting food and drink. It is made from natural ingredients, so no harmful chemicals or toxins can leak into the food. Glass is BPA-free and does not absorb odours, flavours or stains. Not only is glass a healthier option but it is also made to last and never for single use. Kilner continues to tackle plastic waste with our ethos of REUSE, REFILL, RECYCLE.