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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.
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Works well but this a very expensive way to go. All you need to dissolve the scale is a mild acid.
We used to use vinegar, which works well but smells like vinegar. Some people report some corosion, though we used it on our old Zoji hot pot for about 7 years without noticing any corrosion. Perhaps it's because we only descaled it twice a year.
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.) We also use Citric acid in our dishwasher as the newer non phosphate detergents are much more susceptible to hard water deposits.
Two tablespoons are about the right amount for each cleaning cycle
Citric Acid 1 lb., (Frontier)
Citric Acid, priced per pound
Citric Acid 4 Lb tub
Citric Acid (Lemon Salt) 5 Pounds Bulk
Citric Acid 1 Lb tub
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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.
Read Best Reviews of Zojirushi #CD-K03EJU Inner Container Cleaner for Electric Pots, 4 Packets Here
I use this to clean my 3L Zojirushi electric water boiling pot. Since I boil tap water in my pot, over time the interior of the pot becomes stained with minerals such as limescale and iron that precipitate from the water.
Zojirushi recommends this product to clean the pot. It's easy to use use 1 packet, dissolve in water and fill the pot as directed, set the cleaning cycle, and voila, the pot is clean.
I have never had a strange taste or smell after cleaning, but note that I typically dump the first batch of water I use after I clean the pot, and use it as usual after that.
The cleaner is food grade citric acid. You can buy citric acid in bulk, and at a price that is much lower than this product.
Amazon does carry bulk citric acid labeled "food grade", but since citric acid is also widely used in industrial applications, I didn't want to take any chances, so opted for this product, but next time may opt for a cheaper option.
Some reviews mention using vinegar to clean out the pot. My pot's product manual specifically mentions not to use vinegar. Both vinegar and citric acid are mild acids, and I wonder why the manufacturer seems to be so anti-vinegar?
The only reason I can come up with is that vinegar may react with the lining of the water container or with the inner lining of the transparent plastic water level indicator (and thus make it hazy instead of transparent)?
Most Zojirushi water pots have a small thimble-like filter that may fall off when you dump out the water (mine did), so you may want to make sure it stay where it is supposed to when you empty your pot.
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I push 3-4 L through my Zojirushi water heater every other day, which makes cleaning properly a critical issue. Love this cleaner--it does the trick every time, easy as pie.
