Brown sugar keep turning into a solid mass in your container Not when you store it with the OXO Pop Container Brown Sugar Keeper. By attaching this ceramic disk to your OXO Pop Container lid after being soaked in water, your brown sugar absorbs enough moisture to keep it soft and malleable. Make your brown sugar for your caramel sauces and barbecue marinades easy to scoop out with this smart OXO Pop Container Brown Sugar Keeper.