I rinsed a couple of my cartos out in some hot water the other night and they work just fine. I haven't noticed any drop in performance at all. I'm not sure if it makes any difference that these are LR cartos being used on a mod or not, though.
I don't know about LR cartos or mods, since I don't use them, because the higher voltage gradually burns the inside of my mouth and chest. I do know for a fact that cartos can become degraded after cleaning, BUT I'm referring to cartos that have already been refilled several times. I've cleaned cartos that had only been filled once or twice, and they were okay after that, but cleaning cartos that have been refilled several times (and already on their way to being degraded normally due to having been refilled several times -- that is, they're getting old) generally doesn't work. The filler is just too old by that time for cleaning to do any good -- and I suspect the built-in atomizer slowly degrades with use. When a carto quits producing flavor, like it did when it was new and during the first couple-three weeks (refilling it about once each day), I'll discard it and grab a new one. (That's what I did when I used to use cartos all the time...)
My point is:
1. cleaning cartos (at or near the end of their normal life) won't make them like new again. It's best to throw them away and use new ones. It's sort of like washing old, worn-out t-shirts or underwear -- washing them won't make them like new again.
2. there's no reason to clean cartos during the first two to three weeks, if you're using the same juice and you refill each carto once each day.
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