Nitrogen Coffee making process Teaching _ what kind of Coffee beans is nitrogen Coffee expensive

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● turns on the "tap" and presses the brown bubble waterfall.

A cup of cold "dark beer" coffee is ready!

Nitrogen cold extract coffee (Nitro Cold Brew), in the trendy Cold Brew ice cold extract coffee, filled with nitrogen to keep fresh, and then poured into the beer machine. This thought-inspired idea was invented in 2013 by Nate Armbrust, a food scientist who loves coffee.

The ice drink has become one of the online celebrities in the summer iced coffee market, depending on the special charge of nitrogen. It tastes better than all iced coffee, and nitrogen coffee can still have a creamy taste and attractive sweetness without any artificial addition of sugar or dairy products, making it a favorite of many coffee lovers.

The foam produced by nitrogen is smaller, softer and longer-lasting, which not only relieves the acerbity of coffee, but also retains its special flavor and aroma, making it sweeter, smoother and less sour. If it is filled with carbon dioxide, it becomes carbonated coffee, which not only destroys the aroma of the coffee, but also forms a big, round foam.

● STEP 1 material preparation

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Compared with other iced coffee, the production of nitrogen is more complex, and the main materials are: single coffee beans / blended beans, grinding utensils, iced coffee, nitrogen tanks.

▲ coffee beans

▲ Cold extract Coffee Cold Brew (Shanghai AUNN CAFE&CO Cafe)

▲ high purity nitrogen (nitrogen coffee generally uses "pure nitrogen" or "nitrogen-carbon dioxide mixture")

● STEP 2 production process

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Nitrogen coffee is essentially similar to the way cold coffee is made. The first step is to grind the coffee and then extract it with cold water, which takes about 18-20 hours. The only difference is that it needs to be filtered twice after that. Until the concentrated coffee essence is produced, the treated coffee will have a cleaner taste, higher balance and better mellow thickness.

The most important step in the whole process is to pour the filtered coffee liquid into the pressure bucket and inject nitrogen with a high-pressure valve to fully merge the two. And then through the "faucet" pressed nitrogen coffee, combined with its own slight fermentation fragrance, will make many first-time tasters mistakenly think it is beer. Another point is that because nitrogen coffee is concentrated twice and contains twice as much caffeine as regular coffee, it has become a big choice for caffeine enthusiasts.

● tastes fine and crisp, and its color is similar to that of beer. It looks like beer and tastes a bit like beer, but without alcohol. In that case, the person who drinks with you is destined to be unable to send you home, so the wine glass is still the wine glass, but the wine is replaced by nitrogen coffee.

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