1. Sourdough Starter Warmer: Fine-tune from 70℉-100℉ with 1℉ precision. This sourdough warmer ensures stable heat for fermentation, even in winter. Keep your sourdough starter in the 75℉-82℉ to speed up fermentation and boost bread texture. 2. Smart Timer & Memory Function: With 0-12 hour appointment and auto shut-off timer, this sourdough warming mat ensures dough proofing without constant monitoring. 3. Safe Rapid Heating: This sourdough warmer is equipped with upgraded Graphene and aluminum foil heating film and adopts advanced directional heating technology. It can achieve uniform and rapid heating in just 10 seconds. The sourdough heater consumes only 12W of power while providing efficient temperature control, ensuring energy savings and environmental safety. For enhanced heat retention, simply cover the jar with a towel. 4. More Durable & Compact Design: Unlike USB-powered sourdough starter warmers that break easily, this US plug design offers stable power and greater durability. 5. Plug and play. This sourdough proofing mat can be used for sourdough starter, defrosting meat, softening butter, fermenting yogurt, etc. Suitable for baking beginners and seasoned pros alike. 6. Voltage: AC110V 7. Plug Type: US Plug, applicable to Canada, India, Mexico, Thailand, the United States, the Philippines, Taiwan and so on. 8. Color: C:Black 9. Material: plastic 10. Package Contents: 11. 1 x Electric Sourdough Starter Warmer Mat 12. Only the above package content, other products are not included. 13. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.