Billington's natural unrefined sugar is carefully produced to lock in rather then refine out the natural molasses of the sugar cane. It is this difference which gives Billington's sugar it's unique richness, depth of flavour and natural colour. Store in an air tight container. In certain weather conditions this natural sugar may harden. This is not a sign of deterioration. Just place the sugar in a basin and cover with a damp cloth. Leave overnight and the moistness will return.