Zojirushi CD-WHC40 Micom Water Boiler and Warmer (135 oz, Stainless Gray)
$204.95
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4.8 out of 5 stars with 58 reviews
5 out of 5 stars
29 November, 2025
originally posted on zojirushi.com
Best countertop appliance I own.
This is my absolute favorite small appliance. I use it an infinite number of times a day, for everything from pour-over coffee to steeped tea to boiled eggs to warmed bowls and oatmeal… it’s perfect in every way.
5 out of 5 stars
20 October, 2025
originally posted on zojirushi.com
Boils and keeps water warm, super convenient!
Water boiler and warmer works great. It runs at lower wattage than standard hot water pots, even when heating to a boil. Exactly what we needed. Timer feature is great to have hot water ready in the morning when you come into the kitchen.
4 out of 5 stars
23 September, 2025
originally posted on zojirushi.com
Good design but one area for improvement.
Great for having a stanless steel basin which should not rust out like the teflon coated one from Zojirushu that we had before (which still lasted a decade). But, I feel like this boiler could use extra insulation to prevent heat from coming out and wasting energy. Perhaps a vacuum wall design would be beneficial.
5 out of 5 stars
1 May, 2025
originally posted on zojirushi.com
We used to drink a lot of coffee
I love this thing! It is incredibly handy. Everyone in my family drinks tea now.
4 out of 5 stars
22 April, 2025
originally posted on zojirushi.com
Does Its Job so far!
so far so good! after having this unit for 2 months it works as it should with no problems. I just wish the lid fit better without jiggling and that the stainless tub would not have a welded bottom plate, as opposed to one solid unit. Rust is just waiting to appear on thin welds... This is Z's only stainless tub unit which is made in China -
5 out of 5 stars
19 August, 2024
originally posted on zojirushi.com
Quality product
Works well. This is a replacement for my original Zojirushi water boiler that was around 30 years old. I ordered this model in particular for the stainless steel interior. My original boiler’s interior was coated and it started deteriorating which precipitated this purchase. Good quality
2 out of 5 stars
25 February, 2024
originally posted on zojirushi.com
Bad insulation. Cheaper material.
I have 18 year old Zojirushi water boiler so decided to replace it. This new unit absolutely feel less quality as the old one. Very bad insulation as the upper outside feel hot when touch. This is not a good replacement even my old one is 18 year old.
1 reply from Zojirushi Customer Support team - 2 years ago
Thank you for sharing your feedback regarding your new water boiler. The CD-WHC40 model does not come with insulation, so it's normal to feel some heat transfer to the exterior. We have other models available that feature vacuum insulation, such as our VE Hybrid line. It appears that your water boiler is functioning properly. If you have any questions about your specific model, please don't hesitate to contact us at https://www.zojirushi.com/app/customer_service/entry.
5 out of 5 stars
2 February, 2024
originally posted on zojirushi.com
Great device now in steel
Great device now in steel. Had a plastic version for many years that worked great. Upgraded to this one to avoid hot water coming into contact with plastic (bpa fears).
5 out of 5 stars
21 December, 2023
originally posted on zojirushi.com
Tea time - anytime!
This is my second water boiler- I have had one at work for years and years - and decided to treat myself to have one at home. I love the new stainless steel interior!!! At work this is a go to when we have meetings and need to have hot water ready for those of us who are avid tea drinkers. These are well worth the price - I couldn’t imagine life in the office without it!
5 out of 5 stars
20 December, 2023
originally posted on zojirushi.com
Handy all day
I sip hot water and tea all day and this makes it crazy convenient! I'm also concerned about nitrous dioxide from gas stoves so this means I'm not constantly using the gas stove to boil water.
5 out of 5 stars
19 November, 2023
originally posted on zojirushi.com
One of the best things I ever bought!
This is the best small appliance I've ever bought. My daughter-in-law has this as well, and I found it so convenient at her home to make a cup of tea or coffee instantly without having to heat a teapot or water in the microwave. I came home and ordered one for myself!
5 out of 5 stars
3 June, 2023
originally posted on zojirushi.com
Welcome to the family
In our home we consider appliances part of the family—perhaps a more essential part that myself since they make life so much better and happier. Having had a Zojirushi water boiler for years and having its interior slowly deteriorate as a function of very hard water and relatively inept maintenance, we replaced our dependable retainer with a new one. One of the big reasons for the choice was the stainless steel interior, which promises to be easier to keep deposit-free. We love the new appliance and enjoy its added options and the quirky music it plays at certain times. I do wish, given the amount of hot water we use, that the tank were bigger. Still, I have fallen into a happy routine or filling the reservoir before going to bed, setting the timer to start in 10 hours, and then laughingly listen to the chime of music as I walk away.
5 out of 5 stars
5 April, 2023
originally posted on zojirushi.com
So helpful
[This review was collected as part of a promotion.] This worked great for when I started caring for my grandson. It was easy to use and was great to have for making a quick bottle of formula. I also used it to make instant tea or instant coffee quickly.
5 out of 5 stars
3 January, 2023
originally posted on zojirushi.com
Quiet, powerful, and fast
[This review was collected as part of a promotion.] This is the perfect kitchen appliance for someone who loves pour over coffee, tea, or find themself needing hot/warm water quickly. The unit is very safe, and doesn't get warm to the touch, and the buttons are very intuitive. I like that it has an energy mode, and can maintain water temps for longer periods of time.
5 out of 5 stars
4 September, 2022
originally posted on zojirushi.com
Convenient throughout
[This review was collected as part of a promotion.] Very easy to set up and does not take too much counter space.
5 out of 5 stars
27 August, 2022
originally posted on zojirushi.com
The BEST Brand for Water Boilers!
[This review was collected as part of a promotion.] Zojirushi is the only brand I will ever buy for a water boiler. It is so amazingly quick to boil and stays warm for any time you would like an instant hot beverage. I work as an assistant and this is so perfect for any office or to take to go. Long lasting for many many years, you won't be disappointed!!
5 out of 5 stars
25 August, 2022
originally posted on zojirushi.com
My favorite product
[This review was collected as part of a promotion.] I like the silver look, the last one I had was white
5 out of 5 stars
26 July, 2022
originally posted on zojirushi.com
The best water heater
[This review was collected as part of a promotion.] Moved over 6 times and this water boiler and heat maintainer is THE BEST. It fills up to 3 times a tea pot. Fast to reheat to ideal temperature and perfect for the family. Very reliable and filters the water greatly
5 out of 5 stars
18 July, 2022
originally posted on zojirushi.com
water at the right temp always at the ready
[This review was collected as part of a promotion.] So convenient and efficient. This is our second water boiler and our first lasted over 10 years. A fantastic product that we're hoping to use for another 10 years!
4 out of 5 stars
6 July, 2022
originally posted on zojirushi.com
Still working after several years
[This review was collected as part of a promotion.] I can't remember how long ago we bought this, maybe 6 or 7 years ago. It still works great. So handy to have hot water whenever we want it. The only feature we don't like is the magnetic power cord. It disconnects too easily when the boiler is bumped.