Terracotta Salt Piglet For Natural Salt Storage. This salt piglet is a smaller “handy size” version of our larger salt pig. It offers the same benefits as the salt pig, but on a smaller scale. Terracotta is a naturally porous material, which makes it ideal for storing salt and sea salt. Moisture is absorbed by the salt piglet, keeping the salt dry and ready for use. For this reason the inside of the salt piglet is unglazed. A practical and convenient way to store salt, favoured by the serious cook.