The supplier did test washing the shaker in different way. E g. dishwasher etc etc and in general it holds up well Huel logo on Shaker didn't last very long
I’ve got several that have lasted me many months, well over 6 months. I always hand wash my bottles and dishwash the lids.
Having said that I have up to 4 on the go at once.
The problem seem to be sweat and this is why I suggested trying to keep your hands off the logo as much as possible.