Please note that unglazed terracotta will soak in fats and oils so will stain when seasoned. This is a design feature that improves the performance of the stone every time it is used. The more you use it, the more the non-stick performance of the stone improves.
DO NOT use the stone on hobs or under grills. DO NOT place the stone directly onto work surfaces or tabletops. Allow to cool before washing in warm water. DO NOT put in a dishwasher or in a microwave.