Sourdough Starter Warmer: Precisely adjustable from 70°F to 100°F in 1°F increments. Ensures consistent, stable heat for optimal fermentation—even during colder months. Maintain your starter within the ideal range of 75°F–82°F to accelerate fermentation and improve bread texture. Smart Timer & Memory Function: Features a 0–12 hour programmable timer with auto shut-off for hands-free, precise dough proofing. Safe, Efficient Heating: Uses advanced heating film technology for uniform, rapid warmth—reaches target temperature in seconds. Operates at only 12W for energy efficiency and safety. For best results, cover the jar with a towel to retain heat. Durable & Compact Design: Designed with a standard US plug for reliable, stable power—more robust than USB-powered alternatives. Plug-and-Play Versatility: Ideal for sourdough starter maintenance, dough proofing, yogurt fermentation, butter softening, and gentle meat defrosting. Suitable for bakers of all experience levels. Voltage: AC 110V Plug Type: US Plug (compatible with Canada, Mexico, Philippines, Taiwan, Thailand, India, and the United States) Color: Black Material: Plastic Package Includes: 1 x Electric Sourdough Starter Warmer Mat Note: Actual product color may vary slightly due to screen settings and lighting conditions. Measurement tolerance: ±1–3 cm.