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Nitro Cold Brew: Summary of article with Citations
Nitro cold brew is a cold brew coffee infused with nitrogen gas. The process gives it a smoother flavor and a layer of foam. It does not give the same texture as carbonated drinks, because nitrogen bubbles are far smaller. The production of nitro cold brew can last much longer than typical coffee and at much lower temperatures. This creates higher caffeine content and less acidic coffee.

The origins of nitro cold brew are unclear. Credit has been given to coffee houses across the United States including ones from Texas, Oregon, and New York. Today, nitro cold brew is widely available at chain vendors such as Starbucks as well as through wholesalers.