Heirloom tomatoes are a type of tomato that has been passed down through generations, often cultivated for their unique flavors, colors, and shapes. Unlike commercial varieties, which are bred for uniformity and shelf life, heirloom tomatoes are open-pollinated, meaning they can reproduce naturally and maintain their characteristics over time. These tomatoes come in various types, including Brandywine, Cherokee Purple, and Green Zebra, each offering distinct tastes and textures. Heirloom tomatoes are typically grown in home gardens or small farms, emphasizing organic practices and biodiversity, making them popular among chefs and home cooks who appreciate their rich flavors.