I was never told to put my kote in the laundry. But, I did.
Geoff Salmon explains that kendo bogu is and has been seen as something that smells bad in nature.
A quick ‘how to’…
In my dojo, cleaning your own equipment is a common courtesy to others. Washing equipment when necessary and airing it out after training is seen as a skill and an important part of reiho.
I admire informational blog posts like Hiro Imafuji’s, but there is little info anywhere online about specifically using an electric washing machine on a set of kote.
It works well with practice dogi and everyday clothes. Maybe, your kote can be laundry too.