A spiral mixer is a type of commercial kitchen equipment designed for mixing dough. It features a spiral-shaped mixing arm that rotates around a stationary bowl, allowing for efficient and thorough mixing. This design helps to develop gluten in the dough, which is essential for bread and other baked goods. Spiral mixers are commonly used in bakeries and pizzerias due to their ability to handle large batches of dough. They come in various sizes and capacities, making them suitable for both small and large-scale operations. Their efficient mixing process results in consistent dough quality, which is crucial for professional baking.