Horsehage High Fibre Blue is a semi-wilted grass sealed in a bag without the dust or spores which are found in hay. Made from the highest quality grasses there are no artificial preservatives added, just natural fermentation inside the bag preserves the grass as HorseHage. It is cut just like hay but, instead of being allowed to dry completely, it is baled when the grass has wilted and the dry matter content has reached around 55%.