Zojirushi CV-JAC40XB Water Boiler and Warmer 4.0-Liter (Stainless Black)
Zojirushi CV-JAC40XB Water Boiler and Warmer 4.0-Liter (Stainless Black)
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Zojirushi CV-JAC40XB Water Boiler and Warmer 4.0-Liter (Stainless Black)

Key item features

  • Hybrid System: Features Vacuum-electric (VE) hybrid system for efficient water warming
  • Temperature Settings: Offers 4 keep warm temperature settings and vacuum insulated non-electric keep warm
  • Quick Temp Mode: Optional quick temp mode reaches 195°F without boiling
  • High Power Heating: Equipped with a 930-Watt high powered heating element
  • Energy Saving: Includes an energy-saving timer function ranging from 6 to 16 hours
  • LCD Control Panel: Orange LCD control panel displays actual water temperature at all times
  • Water Level Gauge: Wide window water level gauge with a red ball indicator for easy visibility
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was $304.99
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Sold and shipped by japandealz
4.5675675675675675 stars out of 5, based on 37 seller reviews(4.6)
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4.9 out of 5 stars
stars90 ratings89 reviews
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Showing 1-3 of 89 reviews

Jul 24, 2025
atx203
5 out of 5 stars review

Seller Verified Purchase

Great purchase

I have previously owned the CV-DCC and CD-WCC (4L variants) and feel like the CV-JAC is an improvement in every way. For the same volume it is slightly wider and shorter which is practical on a countertop with a low overhead, and is great for my small apartment. The water boiling noise has been reduced drastically and is barely noticeable when heating up to 175 F, and does not disturb me at all during video conferencing. And the 930 watt power makes the heating time just slightly shorter. Other things I like: 1. The power cable is a standard power cable like those used for desktop computers, and no longer has a magnetic power connector. Although the magnetic connector is convenient when I need to quickly move the boiler somewhere else, it is also easier to knock off. 2. I may be mistaken on this one, but I believe the temperature selection setting is now saved even when the power is off. The previous models reset the selection to 195 F when powering on. 3. The notes in the little song when the water is ready have been tuned more precisely and the volume has been equalized. 4. The reboil / quick-temp states now share a single LED where blinking means it is in quick-temp. This makes it easier to distinguish from afar compared to 2 solid LEDs where you can't really tell which one is lit up. The only design choice I don't like so much is the small floating red ball inside the water level indicator. It is subjective but I prefer the simpler aesthetic of just a water line.

Review from zojirushi.com
Helpful?67NHHNVU4SJQ1539265768
Apr 5, 2026
JCGR
5 out of 5 stars review

Seller Verified Purchase

Great Product

I use it for tea sessions and you can't go wrong with it. Hardy and holds plenty of water for tea sessions.

Review from zojirushi.com
Helpful?67NHHNVU4SJQ1539265768
Jul 7, 2025
Chrs
5 out of 5 stars review

Seller Verified Purchase

Lovely water boiler!

Bought this water boiler because I wanted to be able to do more than what a kettle could provide. This is amazing and efficient! Worth every penny and then some.

Review from zojirushi.com
Helpful?67NHHNVU4SJQ1539265768