All that is necessary is to simply rinse, reuse, and occasionally boil your filters to remove build up, but for a deeper clean, use these eco-friendly cleaning tablets. Formulated from all-natural, organic, biodegradable and phosphate-free ingredients that eliminates oil buildup in CoffeeSock filters. Details: 8 Tablets/pk. Once every 6-8 weeks, boil filter(s) with 1 tablet in fresh water for 10 minutes to remove built-up coffee oils. Repeat a freshwater boil for 5 minutes. Rinse with clean water and hang to dry. CoffeeSock created a sustainable product, one that is built around community and ritual. CoffeeSock was birthed late 2011 in a 'necessity is the mother of invention' moment. Out of Chemex coffee filters, and with an old traveling Chorreador, aka 'coffee sock' from Costa Rica as inspiration, they made an organic fabric filter for the Chemex. It performed so well that we were inspired to create models for all popular coffee brewing processes.
