350 milliliters water, room temperature
3 to 4 mint stalks, leaves and stems, rinsed
2 iSi CO2 Soda Chargers
3 slices lime
1 ½ teaspoon sugar
Put the water and mint into an iSi soda siphon and secure the top. Charge with 1 iSi CO2 Soda Charger. Add 150 grams of ice directly into the canister and secure the top. Charge the canister with another iSi Soda Charger. Agitate, let sit for a minute, and vent slowly. Muddle the lime and sugar in a glass. Add soda water to the glass and stir.