Insulation safety range--Withstand the repaid temperature change of the water from the -5 to 150 degree. No chemical leaching or metallic taste--Made of high boron glass liner, you won't worry about the toxic chemical or heavy metal in your water. Healthy and Useful Vacuum Flask Travel Mug. This vacuum bottle belongs with you. Easy to clean--With its Round opening edge and wide mouth, and CRYSTAL CLASS LINER, the Coffee Thermos mug is easy to clean. Your drinks with be extraordinary all day--No more lukewarm coffee at work, no more mediocre drinks. Free yourself from the beverage and go with our extraordinary vacuum insulated technology. Glass Liner Stainless Steel Water Bottle consists of a 304 stainless steel body with a stainless steel tea strainer, food grade plastic lid. It Can contain Plum juice, lemon juice, carbonated drinks, milk, dairy products, fruit juice etc.