I'm thinking of buying an instant pot ( https://www.instantpot.co.uk/product/instant-pot-duo-8-litre-electric-pressure-cooker-220v/ ).
It's a UK version and I live in Sweden. The voltage and frequency seems to be the same (around 220-230V and 50Hz).
I know I need to buy an adapter to make it fit in the socket.
My question: is it dangerous to use adapters like this (not to convert the voltage or anything), simply to make it fit.
Best Answer
The good news is that the specifications for that instant pot say it comes with both UK and Schuko power cables. So you shouldn't need to adapt anything.
There are a few issues with adaptors.
If it's a well-made adaptor that has correctly sized (4.8mm not 4mm) pins, the correct Schuko retention features, an intact earth path, a sufficient current rating and a socket designed specifically to take a BS1363 plug then it's probably safe enough but still for long-term use I would always favour changing the plug or cord over using an adapter.
Also be aware that Schuko plugs are unpolarised, so live and neutral may end up swapped. For modern equipment built to IEC standards this shouldn't be an issue but for vintage equipment or home-built stuff it may be.