Originally Posted by Mild Mannered
If your washing machine at home is a front loader, you'll be ok. Wash in cold water then hang dry.
If your washing machine is a top loader, do NOT wash in the machine. Hand wash, then hang dry.
A top loader washer has that twisting mechanism in the middle that will destroy things.
The Euro-designed Front loaders have only a rotating drum and 'tumble' wash the clothes.
You can also keep the shirt buttoned & turn it inside-out before washing.
That will protect the buttons further from any direct contact with the washer drum or other garments that the shirt can catch on.
I have several MOP shirts that I wash in cold water setting on our Front loaders.
I always let them hang dry (or almost dry) then iron. no problems experienced here at all.
Avoid dry cleaners. They press the hell out of everything and will destroy your buttons.
I have a top loader, but I put my shirts into individual laundry bags before washing them. I've been wearing some of my shirts for 11+ years, so I assume that the bags work well!
The only reason to be nervous about MoP buttons, as far as I am aware, is if you send your shirts out to the cleaners and they use a large press on the shirts, instead of hand-ironing them. This is because the pressing machine can crack the MoP buttons. Hand-ironing, though, does not present any problems.