Since nitro coffee is made with cold coffee and stored at a low temperature, oxidation will occur much more slowly. As for the taste, the cold infusion should be soft, nuanced and less acidic than regular coffee. Honestly, I wouldn't recommend pasteurizing cold coffee because the heating process will destroy many of the nuanced flavors that cold beer is known for. The most important consideration when it comes to the longevity of cold-brewed coffee is the quality of the ingredients used.
It's also gaining popularity for its versatile uses. Many cafes, restaurants, and homes serve cold coffee in a variety of forms, such as cold, nitrofrized beer, iced cappuccinos, and cold lattes. Finally, the temperature of the environment in which cold beer is stored can have a major impact on its shelf life. If you're wondering if your cold coffee has gone bad, there are some telltale signs to pay attention to.
In addition, cold coffee is naturally lower in acid, helping those who are prone to acid reflux or have a sensitive stomach. Storing cold coffee for maximum shelf life starts with storing it in an airtight container in a cool, dry environment. It's much shorter than the cold beers you'll find in the store because commercial coffees undergo conservation processes. However, if you want to get hold of a cold coffee maker, you can take a look at the Toddy Cold Brew system designed precisely for cold brewing coffee.
When cold coffee is not in the refrigerator, it should be kept away from heat and moisture, as both can accelerate the oxidation process, which can adversely affect the taste. Once you have the cold beer concentrate or diluted beverage ready to drink, you should store it in a properly sealed container. If not stored properly, cold-brewed coffee can develop unpleasant flavors due to the breakdown of its components. This means no more than two or three weeks in the barrel for optimal results with homebrewing systems such as UKeg Nitro or Royal Brew and several months for a commercial nitro coffee barrel.
However, if you choose to let your beer sit cold in the refrigerator, let it sit for longer than it would at room temperature.