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Zojirushi CV-DSC40 VE Hybrid Water Boiler and Warmer, Stainless Steel

503 customer reviews
| 110 answered questions

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  • Water boiler and warmer with a large 4-liter capacity
  • Vacuum-insulated keep warm provides maximum energy efficiency
  • Temperature settings include 175, 195, and 208 degrees F
  • Temperature-control system; 6- to 8-hour timer; auto shut-off
  • Measures 8-3/8 by 11 by 13-13/16 inches
2 new from $421.70

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Product Description

Zojirushi CV-DSC40 Super VE Hybrid Water Boiler and Warmer, Stainless Steel


The Zojirushi VE Hybrid Water Boiler and Warmer keeps water hot energy efficiently with vacuum insulation technology. This item features super VE vacuum-electric hybrid keep-warm system.

With a large 4-liter capacity, this water boiler and warmer comes in handy when serving hot beverages at a party, meeting, or other large gathering. The unit's stainless-steel double insulation wall keeps water hot with minimum electricity, while its “Cafe Drip” dispensing mode allows for slower dispensing. Multiple temperature settings include 175, 195, and 208 degrees F, re-boiling at 212 degrees F. The appliance features a micro-computerized temperature-control system, and its control panel displays the actual water temperature at all times. Other highlights include a convenient timer function that can be set from 6 to 10 hours, an easy-to-read large wraparound Panorama Window water-level gauge, a detachable magnetic 3-foot power cord, automatic safety shut-off, and an audible beep indicator to alert the completion of the boiling process or a low water level. The unit's clear-coated stainless-steel exterior cleans easily and nicely accommodates any kitchen decor, domestic or commercial. The 840-watt water boiler and warmer measures 8-3/4 by 11-1/8 by 13-7/8 inches.

  • Vacuum-electric (VE) hybrid keep warm system
  • Micro computerized temperature control system
  • Easy-to-clean clear coated stainless steel exterior
  • Energy-saving timer function (6-10 hours)
  • Easy-to-hear sound indicator to alert completion of boiling process or low water level
  • Removable magnetic power cord
  • Three keep warm temperature settings (175°F, 195°F, 208°F and Vacuum Insulated Non-Electric Keep Warm)
  • cETLus listed
Hot Water anytime, all the time!

Push the button and hot water dispenses anytime you wish. This happens because our water boilers not only heat the water, they keep it at optimum temperatures that you can select. Make no mistake; hot water is not just hot water to a discerning tea drinker. But the real reason water pours from every Zojirushi water boiler is because we made a science out of boiling water and keeping it hot. Much time, research and development has gone into making the simple task of boiling water as dependable as a push of a button.

What is an Electric Water Boiler & Warmer?

An electric boiler & warmer is a kitchen appliance that keeps water at a constant hot temperature for hot drinks and other culinary uses. You simply fill the boiler with water and plug it in. It boils the water and keeps it at a set temperature all day long. With an electric boiler & warmer, hot water is ready all day at the touch of a button for hot tea, instant coffee and instant noodles. Each model features different hot water temperature settings depending upon your needs.

Is there BPA in my Zojirushi water boiler?

All Zojirushi products are BPA-free. The inner container of the water boiler is stainless steel with nonstick coating, the inner lid is stainless steel, and both are BPA-free. Some gaskets and the outer lid that may come into contact with water are silicone or plastic, and also do not contain BPA.

What are all those temperatures for?

The multiple temperatures can be used for different beverages and foods. Here is a sample:

212°F and 208°F: Brew black, herbal and pu-erh tea; prepare coffee and instant noodles

195°F: Brew oolong tea and white teas

175°F: Brew various green teas (bancha, houjicha, genmaicha)

Super VE Hybrid Technology

Super VE Hybrid water boilers use vacuum insulation technology to keep water hot with very little electricity. They also offer a non-electric keep warm mode that relies solely on its vacuum insulation to keep water hot.

Easy to Use Controls

One-touch electric dispensing system

Café Drip Dispensing Mode for slower dispensing.

Control Panel displays actual water temperature at all time.


Product Details

Manual [PDF]
  • Product Dimensions: 8 x 11 x 14 inches ; 8.6 pounds
  • Shipping Weight: 8.6 pounds
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • California residents: Click here for Proposition 65 warning.
  • Item model number: CV-DSC40
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (503 customer reviews)
  • Amazon Best Sellers Rank: #49,082 in Kitchen & Dining (See Top 100 in Kitchen & Dining)
  • Product Warranty: For warranty information about this product, please click here

Customer Reviews

Most Helpful Customer Reviews

423 of 429 people found the following review helpful By K. Kurpiel on October 29, 2007
Verified Purchase
I am a recently disabled adult that cannot get enough of a good cup of tea. So seeing this I thought it would make a nice birthday present for me, and make life a little easier around the kitchen. It performs as it says it will.

It looks bulky but is surprisingly lightweight and easy to handle. The whole unit spins on a lazy-susan device making it east to direct the steam vent away from kitchen surfaces.

You will need a water pitcher of some kind to fill this easily. I have a medium sized one sand simply filly the pitcher twice to fill this device once. The handle on top, removable lid, and notched corner makes emptying and cleaning a breeze.

The temperature features are splendid and accurate, there are three:
205 for noodles/ramen etc, herbal infusions, pu-er, Assam and some other black teas..
195 For Darjeeling or delicate blacks like Illam valley are at this temperature as well, let the water sit a few minutes in the brew pot befor adding tea leaves, if you have a very delicate tea.
175 for green or white teas. A few of the more delicate whites fill the tea pot first, then add the leaves. By filling your teapot dry first, this allows the water to lose 5-10F by just warming the pot. Often enough to make a better flavored tea.

On a given day I can go from pu-er tsocha right from boiling, and set the temp to 195. Make a pot of bold assam in the afternoon when at a full boil, then set the temp to 175. Now, after dinner it is set for making jasmine tea for dessert. All with a minimal energy usage and cost.

I have found it a good idea to refill it only 1-2 times then empty the remains, give it a brush inside with a towel, and then let it completely dry. My scale buildup was reduced quite a bit this way.
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128 of 133 people found the following review helpful By Duckey on June 30, 2007
This is my third Zojirushi electric boiler and the best so far! It boils water quickly, dispenses water at a rate that prevents splashing and saves energy by using vacuum insulation. In response to an earlier review, I placed a digital thermometer probe inside a nearly full pot to gauge the accuracy of the unit. The selected temperature of 195 degrees Fahrenheit was measured to be 192 degrees. This difference seems insignificant considering thermometer margin of error. Also, the water temperature does rise above the highest setting of 208 degrees but this is ONLY after boiling. It does return to the selected temperature and maintains at this setting. Lastly, the unit is so well insulated that after choosing the "vacuum insulation" setting - which uses no electricity until dispensing water, 195 degree water was still 150 degrees 8 hours later. This is quite an impressive unit.
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96 of 102 people found the following review helpful By Aaron Stewart on September 7, 2007
Verified Purchase
If you're looking for hot-water on tap for tea, hot cereals, instant soups, ramen, etc - this is a very convenient item.

I drink green teas heavily, and bought it based on the strength of reviews and the Zojirushi brand reputation. I was not disappointed.

I fill it up from the tap, move it to the counter and plug it in. It usually boils in around an hour, and then settles back down to the (adjustable) setpoint in another 1.5 ~ 2 hours. Although I haven't taken a thermometer to its output to verify consistency, I've had great results from the teas I use, so the variations can't be too wild.

As is common with Japanese consumer products the controls are well thought out. It has an unlock button to prevent you shooting water onto the floor or something else accidentally, and the double action lever to open the top makes it hard to have your hand in the way & get a steam burn as you open it.

The water level is clearly visible via a clear tube with a patterned background, and the 4L capacity suits my tea usage for somewhere between 4 and 7 days, depending on just how much I happen to feel like having.

I especially recommend it if you're a Macha tea fan, as it makes the process remarkably fast and easy, simply scoop your tea into a bowl, add some water straight from the Zojirushi, whisk and enjoy.

The only design annoyance I've seen is that the power plug relies on magnets to hold itself in the socket. This is itself a good idea, except most of the body is metal. So if you position the dispenser such that you 're trying to plug it up from behind and can't see where the plug should be exactly, the magnet sticks to the body anywhere you put it until you can feel around for the socket. A fairly minor annoyance, but one that could have been fixed by making the body out of plastic further around the plug socket.

Very solid overall product.
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54 of 57 people found the following review helpful By Concerned Consumer on January 5, 2015
This is only the second time I have written a product review. I felt compelled to write the first because the product totally exceeded my expectations. This time I felt to write a review to warn others of the potential health risk associated with this product.

We purchased our Zojirushi Water Boiler several years ago, and had actually been delighted with it. It was reliable and convenient, and we had felt it was worth the high price tag - that is until we discovered a serious (health and safety related) flaw the other day. My wife had noticed a gritty sensation while drinking her tea lately and thought it might be due to some contaminates that may have somehow got into the water boiler, so she decided to clean the boiler all over. In the process she disassembled the lid in order to give it a thorough cleaning. We were shocked to discover that plastic parts of the lid internals had disintegrated and much of what was left, simply crumbled when touched!

We hadn't just been consuming leached plastics in our beverages, but minute pieces of plastic that had disintegrated into the water. We don't know how long this had been going on for, but it couldn't be good for us. I am not certain of the exact type of plastic used in the lids, but recent health studies on the impact of plastics to human health are a little sobering.

Apparently, the manual includes directions to replace the lid every year - according to a previous review. But really, its an appliance! You shouldn't seriously expect the owners to invest $30 a year maintaining the water boiler that you spent close to $300 to purchase - taxes and shipping all in. The choice of more appropriate (and expensive) materials would have avoided this serious problem. I shelled out a lot of money for this product. I would certainly be willing to spend a few more dollars to be assured that it was safe to use.
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