100% French fine bamboo charcoal, natural water filter

Twig of vegetable charcoal in 100% French bamboo. Perfect for filtering water from your narrow-necked containers and as a drink stirrer, these graceful bamboo charcoal twigs are 100% made in France. We recommend using 1 twig to purify 0.5 L of tap water. USE ADVICE: 1) Boil the charcoal for 5 minutes then dry. 2) Place the twig in the chosen container. 3) Wait between 4h to 8h for the charcoal to act. 4) You just have to consume. Carry out this process again approximately every 2 months (depending on the quality of the water in your municipality). Origin: France. Material: Bamboo.