is of explosion-proof glass, can stand Bubble milk/milk bubble temperature of about 60 ~ 65 ℃;Baby milk temperature about 40 degrees;Coffee temperature of about 80 ~ 90 ℃ This temperature parts only in needle parts (about tip up to 1.5 cm), do not need to throw in all, this is not a fully sealed design, even into the water, will not be damaged. Please correctly , convenient to carry, beautiful and , easy to observe large Numbers The temperature control can be used for milk, also can measure other liquid beverage temperature, multi-purpose