Zojirushi SM-SD36AM Stainless Steel Vacuum Insulated Mug, 12-Ounce, Matte Blue
- Heat retention: 187˚f at 1 hr./ 153˚f at 6 hrs.
- Cold retention: 48˚f at 6 hrs.
- Made of BPA-free plastic and stainless steel
- 5 year warranty on heat retention
What is Vacuum Insulation?
Vacuum means the air between the outer and inner layers of stainless steel has been removed to create vacuum insulation. It blocks heat from transferring through the air (conduction). Zojirushi vacuum insulation also features a copper or aluminum layer tightly wrapped around the outside of the inner stainless steel layer. This copper or aluminum layer reflects heat (radiation), further minimizing the temperature change of your drink. Lastly, heat is blocked from escaping through the opening (convection) with a tightly closed lid.
In 2018, Zojirushi Corporation celebrated its 100th anniversary, and a century of products designed to improve customers’ quality of life-bringing comfort, ease, vitality, and affluence to people around the world. Zojirushi was established in 1918 as a producer of hand-blown vacuum bottles. The Zojirushi line was expanded to include a wide range of stainless steel vacuum bottles, rice cookers, breadmakers, Air-Pot beverage dispensers, thermal serving carafes, specialty cookware, small electrics, restaurant equipment, and other products. Striving to remain faithful to the principles that embodied the company’s first 100 years, and the reputation of quality and durability it earned them, Zojirushi looks forward to a future of continued innovation and inspired design.