Electrical Thermos Pot-Is It SAFE?

For the sake of convenience, I bought a Kenwood electrical thermos pot around 3 years ago. It has been serving us faithfully all these years and I only switched it off occasionally for cleaning. Otherwise, it's running 24/7. One thing I like about this thermos is that it doesn't reheat automatically. It keeps the water warm and only boils when water is added into it.

Few months back, I noticed a screw on the cover came off. It fell into the pot but the screw cap was trapped inside the cover. I left it as it is because it is still functioning like normal. Then, I noticed sometimes there were white particles inside the pot. Everytime I spotted them, I scooped them up but in my heart I felt uncomfortable because I don't know how much of the thing has been dissolved in the water and how much of it has gone into our body.

Two days back, I told hubby about it and I showed him what I scooped up from the thermos. We then decided to buy a conventional flask/thermos instead of an electrical one. The next evening, while I was trying to take the thermos by its handle, this happened..

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The whole cover came off.


See the missing screw and the plastic chipping off?



The white particles

So, I wonder is it safe to use the same type of thermos again? My hubby said he wants the same thing because it is very convenient. We still need to make milk for Ethan (when he wakes up in the morning and before he sleeps at night) and hubby likes to drink chinese tea after dinner.