iSi Cream Chargers are specially made for making whipped cream in iSi Cream Whippers. With iSi Chargers you are assured each charge is perfect and pure. When making whipped cream or desserts you can be confident it's never under-whipped or over-whipped-- it's a perfect product every time! Try making that claim when making whipped cream by hand or with a mixer. Our chargers are made of 100% recyclable steel, non refillable, contains c. 8 g pure N2O. Each charger (silver lacquered) is electronically weighed and measured. Use one charger at the maximum 0.5 liter/1 pint.