Thermo-Spot Indicator Tells you When the Plate is at the Perfect Temperature for Cooking T-Fal Non-Stick Coating. Large Size: 171 Sq Inches. Integrated & Detachable Drip Tray. Entirely Dishwasher Safe. Vertical Storage with Integrated Plug Storage Underneath. Slopped Surface for Run off Anti-Slip Feet Discover the secret of perfect cooking with Thermo-Spot with the T-fal CB540852 Balanced Living Thermospot Griddle. As the griddle heats up, the pattern changes to a solid red color indicating it s at the perfect temperature to help seal in the natural flavors of your food. The lar.