Zojirushi Blog

Everything You Need to Know About Zojirushi Water Boilers

When it comes to brewing great-tasting tea and coffee, every drop counts. That’s why we’ve designed our Zojirushi water boilers for maximum efficiency and convenience so that you can have the hot water you need at the touch of a button. If you’re looking for a water boiler to add to your home or office, or want to know more about our lineup, look no further! In today’s guide, we’ll go through all of our water boiler models and their functions – from Café Drip Mode to Quick Temp Modes – to help you choose the best hot water heater for you.

The Basics

First, let’s go through some basics so that you can understand how our hot water heaters are labeled and categorized:

  • There are three main categories of our water boilers: the Vacuum-Electric Hybrid (VE Hybrid), Micom, and our Commercial size water boiler. We will go through each of these models in detail below.
  • You will notice that each product will have a number at the end of it. This denotes the water boiler capacity: 30 stands for 3 liters, 40 is for 4 liters, 50 for 5 liters, and so on. If you are looking for a smaller capacity hot water dispenser, you may want to look for a product ending in “30,” if you’re looking for something large, take a look at our products ending in “50.”

The Features

Now we’d like to show you all of the features that make our water boilers uniquely Zojirushi. All of our hot water heaters will include the below, no matter the model:

  • Micom Technology: a computerized technology that keeps water at a select temperature for as long as it is plugged in.
  • Safety Auto Shut-off: A function that prevents overheating when no more water is inside or when the lid is open.
  • Descaling Mode: This important function will help you keep your water boiler sparkling clean, free of mineral accumulation. Just make sure you use it often with citric acid.
  • Unique dispense mechanism: All our hot water heaters do not require lifting or pouring – just a one-touch or pump dispense!
  • Other features include:
    • Reboil mode
    • Dechlorinate Mode
    • Convenient lock/unlock feature prevents accidental dispensing
    • Sturdy fold-down handle for easy transport

That’s a lot of great features, right? Now, let’s get into the different models to see which hot water dispenser is best for you.

The Models

First, we’d like to introduce you to the Vacuum-Electric Hybrid (VE Hybrid). VE Hybrid models use less electricity to keep water warm and feature quick temp modes to reduce heating times and electricity. There are currently two VE models in our lineup:

VE Hybrid Water Boiler & Warmer CV-JAC40/50

What makes this model unique is all of it’s features! It has 4 Quick Temp modes and four Keep Warm settings: 160°F, 175°F, 195°F, 208°F, a 930-Watt high powered heating element along with its energy-saving timer function that lets you time your hot water out from 6-16 hours out (that’s more than half a day!). Lastly, note that this model has an easy-to-clean nonstick coated stainless steel interior, and comes in a classy Stainless Black color.

VE Hybrid Water Boiler & Warmer CV-DCC40/50

This model also has four Keep Warm settings (160°F, 175°F, 195°F, 208°F), but three quick temp modes: 160°F, 175°F, or 195°F. The energy-saving timer function can be set from 6-10 hours, and the exterior is stainless steel, with a non-stick interior. This model comes in a Stainless Dark Brown color.

Next up are our Micom models.

Micom Water Boiler & Warmer CD-NAC40/50

  • Comes in a Metallic Black color, which can be paired with the Metallic Black Umami® Micom Rice Cooker & Warmer NL-GAC10/18 for a complete set. Comes in 4L or 5L sizes, so it is ideal for larger households.

Panorama Window® Micom Water Boiler and Warmer CD-LFC30/40/50

  • This water boiler comes with a unique Panorama Window® which gives you a wider window to view your water levels. It also has a Café Drip mode for slower dispensing, which is especially useful for coffee. Available in three sizes, it comes n a clean white color that will brighten up any space.

Micom Water Boiler & Warmer CD-WCC30/40

  • The model comes in either a 3L or 4L size, so it is ideal for both small and medium-sized households. Comes in a Stainless Gray and also features the convenient Café Drip mode.

Micom Water Boiler & Warmer CD-WHC40

  • This model comes in a Stainless Gray color and features a rust-resistant stainless steel interior. The energy-saving timer function can be set from 6-10 hours, and the Quick Temp modes will keep water warm without needing to reach a boiling point.

Micom Super Boiler CW-PZC22/30

  • The Super Boiler is a classic and is ideal for smaller households with its 2L and 3L size. It is simple, with just one temperature setting of 208°F, and comes in a White Ballerina design.

Lastly, we have our commercial water boiler, which is ideal for restaurants, office, or tea houses:

“Commercial” Water Boiler & Warmer CD-LTC50

  • This model has a 5 liter capacity (169oz.), which serves up to 21 cups. There are three keep warm settings, 208°F , 195°F or 175°F, and two QUICK TEMP settings: 195°F or 175°F. The commercial water boiler has a 7-hour delay timer, so you can set your water up to boil the night before, and like all models, has an automatic lock for safety.

The Zojirushi Difference

At Zojirushi, we’re committed to delivering thoughtfully designed appliances that fit perfectly into your everyday needs. For example, all of our Zojirushi water boilers are equipped with a descaling mode, which makes it easier to clean and maintain your water boiler at the touch of a button.

Many of our water boilers also have an easy-to-hear indicator sound, which you can set to fun melodies or beeps that ring when the water is at a boil or is at a low water level. Best of all, Zojirushi water boilers can be set from 6-16 hours, extending the time for your convenience.

Now that you’ve met all of our Zojirushi Water Boilers & Warmers, let us know what you think! Did you learn anything new about our hot water heaters? If you already have a Zojirushi hot water dispenser, make sure to share your thoughts, comments, and questions with us on Twitter, Facebook, or Instagram! #Zojirushi #ZoFan

43 thoughts on “Everything You Need to Know About Zojirushi Water Boilers

    • Hi Channhu, many of our customers keep it on all day as long as they have water in it and don’t let it become empty. We recommend to unplug it if the unit will not be in use and to always keep up with the maintenance to ensure the product’s longevity. Please let us know if you have any questions!

  1. Hello, I am a little confused and need your help figuring out the differences between the commercial vs any of the rest, mainly the CV-JAC which I’ve read is your top of the line.
    I need it mainly for all day drinking warm water as well as herbal teas. Which would better fit for the purpose?
    Thanks a lot!!

    • Hi Yasmin, the commercial model water boiler will come with only 3 temperature settings, a thicker power cord meant to be used in commercial kitchens. The CV-JAC VE Hybrid is vacuum insulated which will keep the water at the keep warm temperature for much longer without the water boiler having to use the heater. This means that it will use less energy to keep it on. It also comes with 4 different temperature settings and a vacuum mode that will turn off the heater as soon as the water reaches the keep warm temperature and will rely on the vacuum insulation to keep the water warm.

      If you drink different types of tea that require different water temperatures, I would recommend of going with one our regular water boilers like the CD-NAC because it will be much quicker for the water boiler to change the keep warm temperature. The VE Hybrid will take a long time to have the water temperature lower if you had it at a high temperature for herbal teas and wanted to brew a green tea later. If you use the same temperature throughout the day, then the CV-JAC is the perfect option. As for the commercial one, if you are not using at a restaurant or business then it’s best to use the home use water boilers since they have more features and a longer warranty.

      Hope this is helpful! Let us know if you have any other questions!

  2. I brought a brand new water boiler From you, After a few uses,The water has a funny smell, I call your customer service, hoping to replace the unit,Your people told me the only solution is to return the unit and get refund,Do you have this quality issue? And why do you have such poor custom service?

    • Hello Charles, we appreciate you sharing your experience here. New products may have a little bit of a resinous scent but it will dissipate after a little while. The materials we use to make our products are thoroughly tested to ensure their safety and quality. The water boiler doesn’t have materials that will change the quality of the water used and it will not change the components or minerals found in the water. We unfortunately aren’t able to process exchanges at this time and are only able to process returns.

      We never hear about a new unit after being used a few times having any strange smells. We would highly recommend going with what our Customer Service Team recommends in order to resolve the issue.

    • Hi Steve, thank you for the feedback! This post was meant to point out the differences between the models and aside from our VE Hybrid models which come with the added vacuum insulation, the differences can really boil down to aesthetics and capacity. All water boilers will boil the water and keep it at the selected keep warm temperature. The vacuum insulated models will use less electricity in comparison with the others. Our CW-PZC22/30 has a manual dispensing mechanism and only one keep warm setting. When choosing a water boiler we would recommend deciding whether you’d like vacuum insulation or not, color you’d like to have, and capacity. All of our water boilers are made with quality materials and will have the same basic functions so we are sure that you will love it no matter which one you choose!

      We hope this helps! Let us know if you have any other questions.

  3. Reference to CD-LFC40. Can I unplug the boiler and add more water or do I have to dump out the water and refill again? Also, can I unplug the boiler at night and plug it back in the morning without changing the water?

    • Hi Kelvin, if the water boiler’s water level is running low, we recommend refilling it even while it’s plugged in. That way, the water boiler will start heating the water for you right away. While you can keep hot water overnight in the water boiler while it’s in use, typically, you want to empty it if you aren’t going to keep the water boiler on. Now, you can keep water inside the water boiler to use the next day. This is how you would use the timer function, the water boiler would be filled with water and once the timer is set, it will have your water hot and ready for you by the time you wake up in the morning.

      Hope this helps!

  4. this is a terrible overview. the only meaningful differences I can tell is the unit color, capacity and the cafe drip mode.

  5. Hello,
    I recently purchased the JAC 50, and I love it!

    My question:
    I would like to use the timer function. How do set it up that when the unit ‘wakes up’ in 8 hours, it heats the water directly to 175 degrees? I want to avoid having the water go to full 212 boil upon start-up (I use filtered water). Thank you!

    • Hi Brian, you will first want to set the keep warm temperature and set up the quick temp mode. The quick temp mode can be set by pressing the reboil button. The light on the button will turn on. Then, you want to set up timer function by pressing the timer button until you see 8 H appear on the screen, and it will be set. YOu should hear a melody when the timer is activated. How to set up the quick temp and timer is on page 14 of your manual or you can give us a call at 1-800-733-6270 and a customer service representative will be happy to walk you through setting up your water boiler.

    • Hi Betty, usually, you will press and hold the UNLOCK button and it will change the melody to beeps. Our Customer Service Team can also help you over the phone, walking you through the melody change if you would like, please call 1-800-733-6270 and they will be happy to help!

  6. I just bought a 5L CD-LCQ. As with my previous kettle, I unplug and turn off the power supply after I have boiled a fresh pot of water, and will turn the power back on to reheat it to 60/80 deg c if I need hot water again, say every 1-2 hours later. However, the CD-LCQ always reboils the cooled water all the way to 100 deg. I understand this is a product feature, but it is not energy- (or time-) efficient at all, compared to using electricity only as and when needed. Is there any way to re-warm the water without reboiling after being unplugged, or must the pot be perpetually plugged in and powered on (which consumes a lot of energy as we do not need hot water continuously)? Appreciate your advice

    • Hi Esther, our CD-LCC water boiler will keep water at the set temperature while it’s plugged in. However, if you unplug it and replug it, it will restart the process and heat up the water to boiling point and then lower it to the set keep warm temperature. The only work around would be to use the Quick Temp mode to have it heat up the water to the keep warm temperature. Our water boilers will keep water at the set keep warm temperature while in use, so you don’t have to wait and you can dispense it at the touch of a button. This means that it will use some electricity throughout the day while it’s functioning. The intended use is a little different than that of a kettle. I hope this helps!

  7. What’s the reason you decided to remove the magnetic power cord on the newer CV-JAC line versus the older CV-DCC line?

    I own a CV-DCC40 and have gifted this same model to a few family members over the years. They’re great devices. The magnetically removable plug is a handy feature for quickly unplugging the boiler, as well as a nice safety feature in houses where a child could pull on the power cord. I’m confused about why your flagship model lost this nice feature.

    • Good morning, we apologize for the late response! There was a change in the Canadian electrical standard and they no longer allow magnetic cords for this type of product, hence the change. We apologize for the inconvenience and hope you still find the product useful.

  8. Hello,

    Is there an way to reset the settings on the boiler? Our boiler is acting weird, and the last I saw was it was boiling and went to 6hr timer and shut itself off.We have model CD-WBC40.

  9. I have CD-WHC40 model – the only thing I do not like is I can feel the heat on the exterior.
    1. Is there a way to insulate that? as it seems it causes more energy in use, plus it warm up the area I am keeping it.
    2. What is the energy usage if the dispenser with 90-80% full than 30% full in water level?
    3. Since I do not need hot water as often in the summer than winter, please provide a suggestion on the best energy saving usage during summer time.

    • Hi Tess, thank you for your questions! The model CD-WHC40 is not insulated like our VE Hybrid models and so it’s normal for some heat to be transferred to the outside of the water boiler. We don’t have measurements for the average power consumption by how full the water boiler is but by the keep warm temperature. The chart is listed under specifications in the instruction manual. The water boiler has a handy timer setting that you can use to set up your water boiler to have hot water ready by a certain time. This is useful if you don’t want the water boiler to be on during the night, and will instead turn on just in time to have the water ready for the time you set it up for.

      Please let us know if you have any other questions or you can always contact our helpful Customer Service Team and they will be happy to answer any of your questions too.

  10. Hi,
    We are considering purchasing a Zojirushi CV-JAC40/50.
    Q1. What are the dimensions (height x width x depth) of each model size?
    Q2. Are there any clearance requirements? That is, does there have to be a minimum distance on the sides and top from a wall or cabinet bottom?
    Q3. What temperature setting should be used if we use hot water for tea, instant coffee, other drinks?
    Q4. Does the unit try to maintain the same temperature that we set 24/7? (Wondering why you would need a time setting.)
    Q5. Is the time setting by time of day (such as, 06:30 a.m.) or length of time (such as 6 hr from the time you enable the time setting)?

    Apologies for all these questions.

    • Hi Perry, thank you for your questions! We love to help in choosing the best Zojirushi for you! Here are our answers:

      1. CV-JAC40 dimensions: 9-1/8″ in width × 12-1/2″ in depth × 11-7/8″ in height.
      CV-JAC50 dimensions: 9-1/8″ in width × 12-1/2″ in depth × 13-1/2″ in height.
      2. We recommend not placing the water boiler under cabinets or near furniture since the steam may warp them. The steam will be released from the top so the best thing is to avoid placing it under cabinets.
      3. You will use the 208 setting to brew coffee and we have a quick guide for which keep warm temperature to use for different teas. Please take a look here.
      4. The water boiler will keep the water warm at the temperature selected while it’s on and not on a timer setting. The timer feature will turn off the heater entirely and will turn on again to have the water ready by the time you set it. Say you want you water to be hot until the morning, then you would set it for 10 hours later (just an example) if you set it the night before. The water boiler will make sure you have the water ready then.
      5. It’s set for the length of time. The water boiler doesn’t have an internal clock so it only understands the length of time in hours.

      Let us know if you have any more questions!

  11. Do you have a water boiler WITHOUT nonstick coating ? And are the insides stainless or aluminum? When heated the nonstick coating will leach toxic materials into the water v

      • The key features I’m looking for is a stainless steel interior to prevent eventual flaking or wearing down of the non-stick coating, potentially contaminating the water or adding to microplastic pollution, double-walled/vacuum sealed for efficiency, and made in Japan.
        Is that too much to ask?

  12. Thanks for this post and all the replies to questions. I wish more companies were as straightforward in answering questions as you. I have 2 questions:
    1. What is the nonstick coating in the JAC or DCC models made of?
    2. If I buy a DCC model from Amazon to the US, will it still have the magnetic cord?
    3. Are all of these made in Japan or only some?

    • Hi Melody, thank you so much! We try our best to give you the most accurate answers so that you are happy with your new Zojirushi. Here are the answers to your questions:

      1. The nonstick coating is PTFE which is commonly used in cookware. It is safe to use and come in contact with food and beverages. However, we understand that some customers would prefer it without a coating so we do offer an alternative which is our CD-WHC40.
      2. The CV-DCC40/50 comes with a magnetic cord only. Wherever you purchase this model it will come with a magnetic cord.
      3. Some of our water boilers are made in Japan and some in China. All of our factories will manufacture our products to the same high standards regardless of where they are located. You can rest assured that you will receive a quality product from Zojirushi, always.

      Please let us know if you have any other questions!

  13. I just opened my new micom water boiler and heater, it comes with a very tiny metal basket in the tank, what is this for? Do I need to remove it from the water tank. This is my second unit . I don’t remember the first one comes with this tiny metal basket in the tank.

    • Hi Benjamin, dechlorination happens while the water is being boiled with the CV-DCC40/50. You will notice it staying at boiling point for about 5 minutes and then it will start to decrease the temperature until it arrives to your selected keep warm temperature. One thing to note that dechloranation does not happen when the quick temp setting is used. It does have a Descaling mode as well and to start it, the reboil button must be pressed for about 3 seconds and it will start the process. Usually descaling will take about an hour and a half. Please let us know if you have any other questions!

  14. I just recieved the 4 L as. gift. It’s been running at 175 all day (temp inside the machine). However, the water temp when dispensed is 160-163. Well below 175 and below they temp for green tea. Is this normal? The temp setting should be that temp of the water that is dispensed. I’ve read this is the case on several forums. Please advise.

    • Hi Fritz, this is normal. We recommend dispensing one cup of water first to get rid of the water that’s been in the water level gauge since it’s not going to be as hot as the water inside the water boiler it also serves to heat up your cup. Then use the second cup of water. There may be a drop in temperature if the environment is cold. As the water leaves the water boiler and is exposed to the outside air, it will decrease the temperature. We hope this helps!

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