Question about Zojirushi NH-VBC18 10-Cup Rice Cooker
I am used to my rice cooker keeping my rice fresh for over 3 days. As of a week ago, the rice would always spoil after 20+ hours.
Does anyone know why this happened? I know it's not my rice because two of my other family member have the same rice cooker model and their rice starts to spoil too. It's rather weird...only 2 years of good use?
I know this thread is old but after much research and trying all the crazy theories on sanitizing the rice cooker I have solved the problem and it should work for you too. EVERY person I've shared this with has reported the same results, rice that keeps for up to a week, nice and hot in the rice cooker as it ALWAYS has, the way you remember when you were a kid.
The problem lies not with the cooker itself but in the water you're using. Yes as simple as that. Let me give you a brief overview. You probably don't know but the tap water you're using most likely is treated with a compound called chloramine. The problem is this compound is also subject to a biological process called nitrification which in turn leads to an accelerated biological process in your rice cooker. This is a very high level explanation and there is much more detailed scientific explanations of the process and issues that are exacerbated by the pipes in your house and at the plant. I will not cover all the technical aspects but if you're wondering why this didn't happen before it's mainly because water was treated with chlorine before, not chloramine.
The bottom line is this. Rinse and cook your rice using ONLY bottled spring water, check the label. If it indicates the bottled water you're using is from municipal sources, call the manufacturer to make sure there is no chloramine. If you do this you will be so relieved and happy, I'll be happy knowing I saved you the frustration and brought rice peace to your life.
Forget about all the special cleaning procedures or equipment testing, I too thought there was something wrong with my fuzzy logic cooker...NOT!!!
If you want more in depth information about chloriminated water you can join my Facebook page and read/discuss it: https://www.facebook.com/pages/Chloramines-and-You/339649646128698
Posted on Oct 20, 2012
Our rice cooker would keep the rice from spoiling for about two years and then all of a sudden it wouldn't keep for even 12 hours before the "spoiling" smell would be present. I tried really washing every washable part and even did an alcohol wipedown in case it was a bacterial or something, but nothing worked. I liked the cooker before this started happening, but don't want to buy another one because it is so expensive. When I was in Japan, there are some REALLY good ones that would monitor the moisture level and want one of those, but will have to live with what is available here. Anyone got a solution?
Posted on Mar 29, 2008
There is some bacteria some place the cover? inside a cover? inside a liner that may be cracked or slightly split. as a measure I would completely imurse everything in bleach water for 6 hours, let the bleach get everywhere and then let it dry for 24 hours. that will keep the bacteria at bay for awhile, in addition if you can open the unit up and look inside at the electronics you may find you have a leak your not detecting from the cooking side.
Posted on May 27, 2008
Omg after reading all the comments I feel like I'm not alone. My rice cooker(tiger band) can keep my rice warm for days now only12 hrs n it starts to smell so I brought a new one same brand n it's still acting the same. I can't seem to keep it warm for more than 12 hrs b4 it starts to smell. It's not the rice either bcuz I also brought a new bag of rice. Wth is going on with the rice cooker?
Posted on Feb 27, 2016
Temperature is most likely not holding high enough--that is the easiest way to spoil rice--grab a thermometer and just check it by filling the cooker with water and leave it on. I'd stick my probe thru the steam hole andcheck it over the next few days. it should keep the water at maybe 135---you may want to look up the temp--140 might be better--170 is too high i think--hope this helps
Posted on Oct 25, 2008
Dunno, happened to us, and we had a really old rice cooker (like 4 years) so we got a new one, but it still happened. We cant figure out what is happening...
Posted on Mar 22, 2008
Mine is about 3 years old and just recently, rice would spoil the next day. I noticed there is some water at the bottom that's making the rice wet and probably causing it to spoil. Anyone know what's causing this and how I can fix it?
Posted on Dec 12, 2009
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Posted on Jan 02, 2017
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