Cold brew on tap refers to the process of dispensing cold brew coffee directly from a keg, similar to how beer is served on tap. This method offers several advantages over other serving methods, such as convenience, freshness, and the ability to serve a large quantity of cold brew coffee quickly.
To understand cold brew on tap, it's important to first understand the process of making cold brew coffee. Cold brew coffee is made by steeping coffee grounds in cold or room temperature water for an extended period of time, usually around 12-24 hours. This slow extraction process results in a smoother, less acidic coffee with a naturally sweet flavor profile.
When it comes to serving cold brew on tap, a keg is typically used to store and dispense the coffee. The keg is usually made of stainless steel and is equipped with a valve, similar to those found on beer kegs. The valve is connected to a coupler, which is used to tap the keg and engage with the valve.
To dispense the coffee, nitrogen gas is used. Nitrogen is preferred over carbon dioxide (CO2) because it does not interact with the coffee, preserving its flavor and preventing any unwanted carbonation. The nitrogen is typically stored in a separate tank and connected to the keg via a nitrogen regulator.
The nitrogen enters the keg through the coupler and pushes the cold brew coffee out of the keg and through a tap or faucet. The low pressure, usually around 10-15 psi, ensures a smooth and controlled flow of coffee without excessive foaming or agitation.
Cold brew on tap offers several benefits. Firstly, it provides a convenient and efficient way to serve cold brew coffee, especially in settings where a large volume of coffee needs to be served quickly, such as coffee shops, cafes, or events. The keg system allows for easy storage and transportation of the coffee, and the tap provides a simple and hygienic way to dispense the desired amount.
Additionally, serving cold brew on tap ensures freshness. The coffee remains sealed and protected from air and light inside the keg, preserving its flavors and aromas for a longer period of time compared to other serving methods, such as storing in pitchers or bottles.
Furthermore, the use of nitrogen gas in dispensing cold brew on tap enhances the drinking experience. The nitrogen creates a creamy and velvety mouthfeel, similar to the texture of a stout beer, which adds to the overall enjoyment of the coffee. The smoothness and lack of acidity in cold brew coffee also make it a popular choice for those with sensitive stomachs or acid reflux issues.
Cold brew on tap refers to the process of dispensing cold brew coffee directly from a keg using a coupler and nitrogen gas. This method offers convenience, freshness, and a unique drinking experience, making it a popular choice for coffee lovers and establishments alike.