Comments on safe to pour isopropyl alcohol over toothbrush gear, circuit, and coil?
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safe to pour isopropyl alcohol over toothbrush gear, circuit, and coil? [closed]
Closed as off topic by Nick Alexeev on Dec 2, 2025 at 03:24
This question is not within the scope of Electrical Engineering.
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this video with 39k, man rinses sonicare with rubbing alcohol. how's this safe?
https://youtu.be/c5ObhA_mF-A?si=DuHdhvCwTjeQkpwo&t=142
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The main issue is just if it's battery powered or not. In case it is, always remove the battery first. Before any electronic device is cleaned or otherwise tampered with, one must always remove the power.
Apart from that, isopropyl is the best way to clean electronics, in terms of cleaning and no residue left behind. So from a pure electronics point of view it's the correct way to do it. One can also use water, but it is less efficient. Neither will harm solder joints or affect connectors etc. Wait for it to dry before plugging power back in, obviously.
Then of course isopropyl, being "denatured", is not something you'll want near your mouth. But as long as the actual brush part is kept away, I don't see any problem with that.
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