Ocado Extra Mature Cheddar.Smooth textured, lingering and tangy to taste.Our cheese is hand-made, matured and packaged at an award winning family farm in Somerset where they have been producing cheese since 1952.Strength - 4Our cheese sometimes has white crystals on the surface and within the cheese itself. This is Calcium Lactate - it occurs naturally and is indicative of older, stronger cheeses. It can also give the cheese a crunchy texture.