How to wash a Kanken There are some simple steps that you can take to extend the life of your Kanken backpack. The first step is to wash it in lukewarm water with mild detergent. Use a soft brush to remove any dirt and debris, and hang it to dry. Do not use a washing machine to wash your Kanken, and make sure to dry it in the shade, not in direct sunlight. You can also use lip balm to clean it,...