Taste the refreshing difference! Our CO2 Chargers are filled with 100% pure and natural CO2 coming out of the wells near our factory, LISS CO2 Chargers are made of 100% recyclable steel, they are lacquered or anodized, not refillable and contain min. 10 ml (approx. 8 grams) of pure natural CO2. More details about CO2: CO2 or Carbon Dioxide is an odorless, colorless, non inflammable gas with a light sour taste, it does not contain any minerals, salts or other solid ingredients. CO2 is used worldwide for food preparation, deep freezing and as a propellant for carbonated drinks.