Semi-hard describes cheese with a consistency firm enough to slice cleanly but still moist and pliable, sitting between soft and hard cheeses. The category includes some of the world’s most eaten cheeses: Cheddar, Gouda, Edam, and Gruyère all qualify, with textures that yield to the knife without crumbling. The firmness comes from pressing the curd to expel whey, then ageing for weeks to months, which develops flavour while the paste stays supple. Semi-hard cheeses are versatile: they slice for sandwiches, grate for cooking, and melt smoothly. Their moderate moisture makes them keep well, and the range of flavours, from mild and buttery to crystalline and sharp with age, covers nearly every cheese use in the kitchen.