Toddy Cold Brew

The Magic of Nitrogen Infusion Nitro coffee is a sensory experience that transforms standard cold brew into a creamy, cascading masterpiece. By infusing coffee with nitrogen gas, you create a velvety texture and a thick, Guinness-like head without adding a drop of dairy. This guide helps you replicate that specialty cafe experience in your own kitchen using accessible techniques and professional-grade tools. Essential Equipment and Ingredients To achieve the perfect pour, you must start with a high-quality Cold Brew Coffee. Prepare a concentrate using a 1:6 ratio—roughly 120 grams of coffee to 720 milliliters of water. For the infusion, choose a dedicated dispenser like the iSi Nitro Whip or the NitroPress. These tools are engineered specifically for pure nitrogen (N2) chargers. Avoid standard cream whippers; they typically use nitrous oxide (N2O), which creates large bubbles rather than the microscopic bubbles required for that signature velvet mouthfeel. Step-by-Step Infusion Process 1. **Prepare the Base**: Dilute your cold brew concentrate with water to your preferred strength. Chill the liquid thoroughly; nitrogen dissolves better in cold liquids. 2. **Fill the Flask**: Pour up to 800ml of coffee into your dispenser. Do not overfill, as the gas needs space to expand. 3. **Charge and Shake**: Secure the head of the dispenser. Insert a nitrogen charger into the holder and screw it on until you hear the gas release. Shake the bottle vigorously for several seconds to integrate the nitrogen. 4. **The Cascading Pour**: Hold the dispenser vertically and dispense into a clear glass. Watch the beautiful cascading effect as the nitrogen bubbles rise to form a creamy head. Tips for Perfection If you find the infusion is weak, ensure your coffee is ice-cold before charging. While you can infuse as little as 150ml, the process is most effective with a full bottle. For those looking to experiment, these dispensers double as excellent tools for coffee cocktails, allowing you to aerate spirits and coffee together for a unique textural twist.