About Zojirushi
Zojirushi traces back to 1918 in Osaka, Japan, when the Ichikawa brothers founded a company manufacturing vacuum liners for thermal flasks. The business was renamed Zojirushi Corporation in 1961, adopting the elephant mark as its logo, and in 1981 it launched stainless steel double-wall vacuum bottles under a patented manufacturing process -- the same core insulation technology that still sits at the center of its mug and bottle lineup today. The company is built around a stated philosophy of "Creating A Quality of Life," and over a century later it remains best known internationally for the vacuum insulation engineering it pioneered.
That heritage shows up directly in the mug we tested: the electropolished stainless interior and flip-open drink-lock lid are the same fundamentals Zojirushi has refined across generations of vacuum vessels, and owners commonly report coffee staying hot for a full day rather than a few hours. The vacuum-insulated body carries a 5-year warranty, a longer commitment than most travel-mug makers offer. Zojirushi's broader catalog -- rice cookers, water boilers, and bread makers built on the same vacuum and insulation know-how -- is what gives the mug line its engineering pedigree rather than treating it as a one-off accessory.
Brand website: zojirushi.com
What Zojirushi makes
Zojirushi's range runs wider than the products we review. The lines we know best from our own testing are marked with a star:
Stainless Steel Vacuum Insulated Mugs
flip-open drink-lock travel mugs -- our featured pick is from this line — featured on Brew Gazette
Vacuum Insulated Bottles
slim stainless bottles for hot or cold beverages on the go
Micom Rice Cookers & Warmers
induction-heating rice cookers built on decades of Japanese-market technology
Water Boilers & Warmers
instant hot water dispensers with panorama water-level windows
Bread Makers
home bread machines built on the same insulation and heating engineering
Why we recognized Zojirushi
The Brew Gazette Top Brand recognition isn't paid for and can't be applied for. We award it to the brands whose products consistently stand out in our hands-on category reviews. Zojirushi earned it on the strength of the products below, evaluated the same way every product on this site is: bought, brewed with daily, and judged on what lands in the cup.
Zojirushi products we rated highly
Zojirushi SM-SA60BA Stainless Steel Vacuum Insulated Mug 20 oz
Zojirushi built its reputation on vacuum insulation, and this mug earns it in our testing -- coffee stays genuinely hot for hours longer than most mugs its size, with owners routinely reporting drinks still warm a full day later. The electropolished interior resists staining and odor, the flip-open drink-lock lid is spill-proof and safe to toss in a bag, and the lid disassembles into simple parts for a thorough wash. The slim cylindrical body is one of the best cup-holder fits we tested, and the vacuum-insulated body carries a 5-year warranty.
Read the 10 Best Travel Coffee Mugs of 2026 guide →What earned Zojirushi the recognition
- A top pick in our travel coffee mug testing, standing out specifically for heat retention against mugs at the same price and above.
- Vacuum insulation is Zojirushi's founding technology, dating to 1918 and refined continuously since the 1981 patented stainless steel double-wall process -- this is a brand built around the exact engineering problem a travel mug needs solved.
- A 5-year warranty on the vacuum-insulated body is longer than most travel-mug makers commit to, backing up the retention claims with a real guarantee.
- The electropolished, easy-to-clean interior and a lid that fully disassembles for washing solve the hygiene complaints that plague many insulated mugs.
- That insulation expertise extends across Zojirushi's wider catalog -- rice cookers, water boilers, and bread makers -- so the mug benefits from decades of engineering rather than being a one-off accessory from a general kitchenware brand.