A gelatiera is the Italian name for an ice-cream maker — the machine that churns and freezes ice cream, gelato, and sorbet. At its simplest it is a domestic appliance with a pre-frozen bowl and a dasher that scrapes the forming ice crystals from the walls while incorporating air; at its grandest, a professional batch freezer that controls overrun, texture, and temperature with precision. The churning action is what separates ice cream from a mere frozen block: continuous agitation keeps ice crystals tiny and folds in air, giving smoothness and scoopability. Artisan gelato makers prize machines that freeze fast and churn gently, producing the dense, intense texture that defines true gelato.