Check the listing for details. Cherry Pits. Condition: New. Listed at 21.00 USD. The cherry pit is an amazing, unique thermal insulator - tactile, clean, and long-wearing. It releases both moist heat and dry cold. The cherry pits have a wooden shell with an encapsulated air pocket. This allows for excellent thermodynamic properties making them ideal for Hot/Cold packs and other crafting projects. Cherry pits can be washed and dried and can be spritzed with your favorite essential oils for aromatherapy. Cherry pits do not rot and they deter pests. They are an excellent choice for fillers in various crafts and health products. The cherry pit gives off a natural cherry aroma. Heat in the microwave or near the wood stove, chill in the freezer, or use at room temperature for comfort and built-in insulation. The practice of using cherry pits for thermo-therapy is a centuries-old tradition, originating with distillery workers in Switzerland. These hard laborers would hang bags of dried cherry pits over the factory stoves each morning, and at the end of the day would carry them home, using them to ease their sore muscles. My cherry pits are grown in the United States. They are washed and dried and are chemical free.