Re: I suppose.
Ah. Yes. I debated whether to add the caveat "...but devices that use the frequency for timing purposes will have problems"!
I was going to give you a link to another Youtube video that shows the effect of running a teasmade on US voltage - and then realized that by incredible coincidence it's the same model as in your video!
https://www.youtube.com/watch?v=o-Zo4AVL7AE (interesting bit happens from 0:06s-->0:09s)
[tl;dw: Queen - I Want To Break Free, official video]
Good luck.