Wear it fishing and dunk it in the stream, put it back on and wear it dry. Best to do this on a warm sunny day or hypothermia may result.

This method will not wash out any fishing luck or mojo that has accumulated in the hat. (If said mojo or luck is associated with getting skunked throw said hat away or wash in the dishwasher. Best use the dishwasher method when the wife is away for the day.)

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