My brother in law claims that he puts his favorites in the dishwasher
and they keep their shape well.
I wash them in the washing machine with light small things and then
air dry them.
Farmers & Sellers of 100%
Kona Coffee & other Great Stuff
Similar to another poster, place them in the dishwasher. I recommend
a baseball cap washing frame to help retain their shape. These are a
plastic frame that fits inside the cap before washing. Another method
is to wash them by hand in cool water using a wool-type soap liquid
(Woolite or similar product). Rinse well and dry in the sun.
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