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Zojirushi SM-KHE48BA Stainless Steel Mug
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- Stainless steel vacuum insulation keeps beverages hot or cold for hours
- Durable and sanitary 18/8 stainless steel interior
- Slick Steel finish
- Wide mouth opening
- Compact design takes up minimal space while maximizing capacity
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From the manufacturer
- Capacity: 16 oz. / 0.48 liters
- Dimensions: D x H: 2 5/8 x 9 1/8
Zojirushi Stainless Steel Mug
A stainless mug is a vacuum insulated mug that is designed to drink directly from the mug. Although similar to travel mugs, it offers better heat retention because of its tight fitting lid, and can be stored in a bag or purse without spilling.
How does it keep beverages hot?
The air between two thin layers of stainless steel that make up the body of the mug is removed to create a vacuum. Because there is no air, the temperature on the other side of the wall does not transfer over, keeping
beverages hot or cold for hours.
The Story About Zojirushi
Zojirushi (pronounced ‘zoh-jee-ROO-shee’) began in Japan in 1918 as a manufacturer of hand-blown glass vacuum bottles. Today, Zojirushi’s product line extends to high-end small appliances such as rice cookers, bread makers and coffee makers, high quality vacuum insulated products like vacuum bottles, lunch jars and carafes, and commercial restaurant and coffee equipment. In the past few years, Zojirushi has enhanced the focus on design and how appliances fit into everyday lives with the introduction of a variety of new products. The name Zojirushi means 'Elephant brand' in Japanese.
Zojirushi's stainless steel vacuum insulation mug will keep your beverages hot or cold for hours. The compact design takes minimal space while maximizing capacity. Each flip lid is tightly fitted for excellent heat retention, and features a safety lock to prevent accidental opening. Durable and sanitary these mugs have an 18/8 stainless steel interior with SlickSteel™ finish. SlickSteel™ is created utilizing electropolishing technology, these products are non-coated on the inside and instead use an electrically charged polishing process to treat and finish the interior. The results is a corrosion resistant surface that repels foreign substances and stains, creating a smooth and ultra clean stainless steel environment for your drinks.
Top customer reviews
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Temperature: I poured hot tea in it and was so busy I didnt drink it at school all day. So on my way home (10 hours later) I decided I didnt want to waste good tea and took a swig. OMG NOT A GOOD IDEA. It was still too hot for me! Even though I regretted that for a few seconds I was really surprised and impressed by this. Just for fun one time I tested it by pouring boiling water in it then 2 min later putting the cap on. I then checked the temp 18 hours later. Still hot. STILL HOT. Not warm. HOT. I do live in a warmer area so the coldest environmental temp was probably like 68-70F. With a vacuum seal that shouldnt matter but its worth mentioning.
Cleaning: so easy! It comes apart and you can just wash and dry everything really well. Then reassemble in a few seconds. I even accidentally left milk and coffee go a little stinky in here once and after a regular wash there was no smell at all. That only happened one time but I was really happy about the lack of reminders of my mistake.
Use: I have definitely locked this and just tossed it into my bag before. Its very secure and I have had 0 spills in 6 months of use. Also I like that when you tilt it to drink you dont get a Niagara Falls size gush of liquid onto your face.
VIDEO: b/c I was confused about the parts so I thought others could use the help.
UPDATE February 2015 (posted as a comment but moved here for visibility): Original video poster here! Glad some of you found my video helpful! I couldn't tell what the parts were and I thought this thermos was awesome and deserved a review so thats why I made it.
Anyhow, I have had this same thermos for 1.5 years now and its still going strong. Ive taken it on lots of plane trips, shoved it in various luggages/bins to travel, really abused it as far as a thermos goes. But thats why I bought it! Still keeps my drinks unfailingly hot/cold, doesn't leak, looks great, and is still basically awesome. I even bought a couple more thermoses for family members and they are having the same success. Its worth the up front investment for this one. It does seem like a lot when you have $5-10 choices at supermarkets.
I bought a bottle brush to clean it (OXO good grips bottle brush from supermarket) and it works perfectly. I don't take the whole thing apart every time- just give the parts a soapy soak/wash every few times then air dry and reassemble.
Nevertheless, I hesitate to recommend this product because, over time, the rubber parts of the seal develop some kind of black stain that's impossible to remove from the rubber. (You can get it off the plastic.) It even changes the texture of the rubber, making it rough. I've owned the three in the picture about a year and half, and this is what they look like, despite daily cleaning. They've never held anything but ice water.
Now, I would overlook this problem if it were not for the exorbitant cost of replacements, which are available from the manufacturer's website. The lid cover gasket and stopper set, which together replace the 3 rubber parts in each mug, cost over $16! And I need 4 sets of them! Usually when a product costs this much to begin with, the manufacturer makes parts available at a reasonable cost, or gratis. Not this one.
-Slim figure, easily fits in cup holders
-Easy to carry/grasp shape
-Holds true to its claims, it really keeps liquids hot!
-Easy to break apart and clean
-Doesn't emit heat on outside to burn hands
-Securely locks the lid
-Top easily screws on
-Difficult to clean inside
-Lid springs open, but spring isn't strong enough to keep lid open. Will discuss later
Now lets talk about the Thermos Nissan 16-Ounce Stainless Steel Backpack Bottle, Smoke Color:
-Large mouth for easy sipping
-Keeps liquids hot for good periods of time
-Larger mouth allows for easier pouring of liquids inside it
-Larger inside allows for easier cleaning
-Easy grip shape, but a little more difficult to fit in cup holders
-Lid does not lock securely enough. Will discuss later
-Top is not 100% waterproof.
-Top does not separate easily for cleaning
Now let me discuss them both and give my final recommendation. Both mugs claim to keep liquids hot and cold for long periods of time. I found in my personal tests, along with tests done with other members of my family, that the Zojirushi actually keeps liquids hotter for longer. My hypothesis is that since the Nissan/Thermos has a larger opening and mouth, it allows for more heat to escape even though both mugs are made of basically the same material, stainless steel. I've also found that the Nissan/Thermos mug leaks. I've found this multiple times, and it seems there's an issue with the O ring inside the mug, it's just not enough. If you compare the O ring to the Zojirushi, you'll find it is made to fit a lot more snugly inside of the mug and is higher quality.
Another issue is the locking lids. I've found the Zojirushi's lid locking device to be exceptional, it won't leak, period. The Nissan/Thermos lid relies on a ring to swing up to lock the lid, potentially allowing for just a slight amount of space for liquid to leak out (which also probably is why there's less heat retention).
Speaking of lids, lets get to the opening of the lids. Both mugs allow for you to press a button and the top swings open. This is where the Nissan/Thermos lid shines. When you press the button, the lid opens fast with a strong spring that will keep it open, but will allow for easy closing. The lid also does not swing if you should move the mug, it's pretty securely held by the spring. The Zojirushi mug does the same thing, however they rely on a weaker spring to keep the lid open, and then there's a notch at the end which will "lock" the lid open if it goes far enough. Problem is if you happen to unlock the lid but go to take a swig from the mug, the lid will bop you on the nose because it isn't nearly as strong as the Nissan/Thermos.
Both mugs do not emit heat on the outside of the mug, you'd never be able to tell if there was hot substances inside unless you opened it up which is good, it means they both attempt to keep the best amount of heat inside.
Lets talk about cleaning. Both mugs have a slim design so it is a little difficult to clean inside them unless you have a brush. Where the Zojirushi shines is that you can disconnect the lid from the top of the mug and clean everything, but the Nissan/Thermos does not...or at least I haven't been able to figure it out easily.
Overall my review will recommend the Zojirushi. The mug doesn't leak so I can fill it up and throw it in my bag to drink after I get off the train, it's easy to clean and retains heat a lot better then the other mug.
Most recent customer reviews
Sometimes water would spill out when i tilt the bottle upside down.Read more
Well, the only good thing is it keeps the hot water really hot for a long time.