Charcoal

Absorbs impurities from water, resulting in pure, great tasting water (filtering time is approximately 3-4 hours). Use 1 stick for 2 litres of water; each stick is approximately 0.75" to 1" (2cm to 2.5cm) in diameter and 4" (10cm) in length. Reactivate charcoal every two weeks by boiling for 10 minutes and letting dry