Zojirushi #CD-K03EJU Inner Container Cleaner for Electric Pots, 4 Packets
- 100-Percent citric acid
- Biodegradable and non toxic when used as directed
- 1 Packet per boiler
- Easy to use
- 4 Packets included
Product DescriptionZojirushi inner container cleaner for electric Pots removes lime scale build up on electric water boilers. . . . More >>
Zojirushi #CD-K03EJU Inner Container Cleaner for Electric Pots, 4 Packets

I live in the mountains and we have well water. To say the least its incredibly hard water. Our Zojirushi was completely coated with white film. I used 4 of the packets and followed the instructions and i was shocked when i opened up the pot. Completely spotless. Great product.
Rating: 5 / 5
Works well but this a very expensive way to go. All you need to dissolve the scale is a mild acid.
We use Vinegar, which works well but smells like vinegar. Add a glass jar to the inside and you use a lot less (Think of how you displace water when you get in the tub) You can also save the vinegar to use again later, though white vinegar in bulk is quite inexpensive.
This product is 100% Citric acid which doesn’t smell, however for the same price here on Amazon you can buy almost 10 times as much if you buy food grade (Citric acid is used for lots of things including cooking. )
Two tablespoons are about the right amount for each cleaning cycle
Citric Acid – 1 lb. , (Frontier)
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Citric Acid 1 Lb tub
Rating: 1 / 5
We have a 5L Zoji hot water pot and recently, used 1 packet (per directions) of this stuff to clean it. It worked great! We did do the cleaning cycle twice, just to be sure we got all the lime scale out. We have hard water, use the pot daily and after several months, it was EXTREMELY scaled up inside. For those who were wondering. . . This product is just 100% pure granular citric acid. Nothing else. Citric acid is also called SOUR SALT. The same stuff you would use for canning, cooking Jewish foods, etc. Each packet contains 30 grams or 2 tablespoons. There are 4 packets per box, 120 grams total or 4. 23 ounces. Citric acid is available in powdered and various granular forms (for VARIOUS prices). This granular product had about the texture of regular table salt. Any form would work just fine. First, you need to dissolve this product in 1 cup or 240 ml warm water. Next, fill pot with plain water to just below max fill line and pour citric acid mixture into inner container. Then, turn on unit and warm for 1-3 hours. Dump water, then refill with fresh water, bring to a boil, dispense a cup (240ml) or so, to flush dispenser tube and pump, then dump remaining water. KEEP WIRE FILTER PLUG IN PLACE DURING ENTIRE PROCESS, IF YOUR UNIT IS SO EQUIPPED. Zojirushi says to use the programed cleaning cycle and follow the directions in your owner’s manual, if your unit has this feature. Also, to adjust the amount of citric acid and the length of warming time, depending on the amount of scale in your pot. Zoji says this product may be used for all brands of water pots, probably because they are all made the same in one or two factories. Clean as a whistle, when done! Looks and works like new! Easy, too! Hope this is helpful! PS: It clearly states in the owners manual NOT to use vinegar (instead of citric acid) to clean your pot, as it will permanently damage your pots inner coating.
Rating: 5 / 5