Nitrogen-Infused Coffee and Beer: A Revolutionary Twist on the Gourmet Beverage.

NitroBrewCoffee and beer lovers have another gourmet beverage to enjoy: Nitro Coffee and Nitro Beer. Nitro Coffee and Nitro Beer are infused with tiny Nitrogen bubbles, which give iced coffee a foamy texture, similar to the frothy collar/head on top of a typical glass of beer. Nitrogen bubbles improve the flavor, texture, and frothiness of a beer’s collar. On Site Gas provides nitrogen generators that will froth up your beer and coffee business as well. Our new Nitro-Blast will provide enough nitrogen for up to five tap lines can be wall mounted to save space.

Iced Coffee Vs Cold-Brew, The Difference

Unlike iced coffee, Cold-Brew coffee is created by steeping coffee grounds in cold water. Once Nitrogen is infused into this coffee, the Cold-Brew coffee has a silky texture with a foamy head.

Creating Nitro Cold-Brew Coffee: The Process

Nitro Cold-Brew begins as regular Cold-Brew coffee in your typical coffee shop, whether it’s a small town business or an international powerhouse. Beneath the counter sits a single keg full of their Cold-Brew coffee. Two lines are attached to the keg: one line runs directly to the original Cold-Brew tap; the other line is infused with Nitrogen bubbles from the Nitro-Blast generator as it is poured from the Nitro tap.

Nitro Cold-Brew Coffee – What Coffee Lovers Can Expect

Cold-Brew exits the spout as a deep-brown coffee. As the Nitrogen infused coffee pours from the spout, cascading into the cup, it separates the darker brew from the lighter brew and then tops it off with a thick, foamy collar. This Nitro Cold-Brew coffee resembles a Guinness beer with the cascading reverse waterfall of bubbles, both visually and texturally. It also creates a natural sweetness lessening the need to add milk and sugar.

Nitro Beer: The replacement for Carbon Dioxide.

For years, the frothy collar on beer has been created by carbon dioxide, but some brewers have started creating what is referred to as Nitro Beer. Nitro Beer differs from traditional beer in that it is infused with Nitrogen. As the beer and Nitrogen interact, the beer becomes creamier, smoother and more evenly flavored. Furthermore, the beer has a frothier collar and a less bitter taste. Another benefit of using the Nitro-Blast Nitrogen Generator is safety, as this is a safer alternative to liquid dewars for a brewery or coffee shop.

Brewing Nitro Beer: The Process

For the most part, Nitrogen is insoluble in liquid: this is what gives the beverage its foamy, thick-mouth feel. And a piece of tap equipment specifically designed to enhance the texture of the beer adds to this effect. It’s called a restrictor plate, and it pushes beer through tiny holes directly before the beer enters the glass. This process creates the rising effect that’s typically seen when a carbonated beverage is poured into a glass.
Companies interested in learning more about Nitrogen generators available at On Site Gas should contact us today. Whether you need a PSA Nitrogen generator or a membrane Nitrogen generator, On Site Gas can custom build a Nitrogen generator for your company: We build Nitrogen generators for companies all over the world.

What to Consider When Purchasing a Nitrogen Generator.

NitroGeneratorCompanies thinking about purchasing a Nitrogen generator should consider what purity of Nitrogen they need. Nitrogen purity is usually expressed in the form of a percent. For example, 99 percent Nitrogen means the gas consists of 1 percent Oxygen, with the remaining 99 percent consisting of Nitrogen and other inert gases.
However, some high purity cases express the Nitrogen’s purity as parts per million by volume (PPMv) of Oxygen that remains in the product gas. Ten PPMv is equal to 99.999 percent Nitrogen and 10,000 PPMv equals 1 percent Oxygen. Determining the minimum purity level required for the applications at your facility is essential to ensure that you benefit the most from your on-site Nitrogen production. Our Nitrogen generators usually pay for themselves in less than 18 months.

On-Site Gas’ Self-Generated Nitrogen Gas Production Options: Pressure Swing Adsorption and Membrane Nitrogen Generators.

Pressure Swing Adsorption Nitrogen Generators

Pressure Swing Adsorption, which is commonly referred to as PSA, uses two vessels. These vessels are filled with CMS (carbon molecular sieve). While compressed air flows up through one vessel, the Oxygen is adsorbed, meanwhile the other vessel de-pressurizes some of the Nitrogen, which flows downward to desorb (drive-off) the moisture and Oxygen the first vessel previously collected. This process continues with one vessel performing adsorption and the other performing desorption. A full cycle includes several steps and usually only takes about two minutes.

Membrane Nitrogen Generator System

A membrane Nitrogen generating system uses hollow fibers of various lengths, materials, efficiencies and diameters. These hollow fibers consist of man-made polymers: their variances allow for selective permeation. Selective permeation is used to separate the gases from the stream of compressed air as it moves through the membranes.
Some vessels contain millions of hollow fibers. These vessels may be referred to as membranes or membrane bundles. In order to provide the capacity needed, these membranes are frequently installed parallel to one another. Semi-permeable fibers are designed to let the faster gases permeate the fiber walls and release into the surrounding atmosphere. These gases are carbon dioxide, Oxygen, water vapor and hydrogen. The membrane separation process does not involve the use of moving parts, which is beneficial for individuals who would like to avoid maintenance and keep things simple; however, other parts of a membrane Nitrogen generator do have moving parts and electrical components. Membrane Nitrogen generators are typically quiet and take up less space that their pressure swing adsorption counterparts do.

Nitrogen Generator Energy Costs

Energy costs are determined by the percentage of Nitrogen required: An N2 system that provides 95 percent purity takes approximately 2 standard cubic feet per minute of compressed air to provide 1 standard cubic feet per minute of Nitrogen.
Nitrogen Specs for Comparison Purposes

  • Food Packaging – about 99.5 percent for the majority of applications
  • Blanketing to avert hazardous conditions – anywhere from 95 to 97 percent.
  • Heat treating metals – materials and processes determine whether purity levels can be 97 percent or as high as 99.999 percent (10 parts per million of O2).
  • Blanketing vegetable oils (edible) – approximately 99.9 percent.
  • Printed Circuit Boards – “Lead Free” selective solder in most cases requires 99.999% (10 parts per million of O2). Both wave solder and reflow can require purities between 99.9% and 99.99%.

On Site Gas provides PSA Nitrogen gas generators and membrane Nitrogen gas generators to companies all over the world. Our generators are ideal for any company that uses Nitrogen. Furthermore, our generators can be found in some of the most remote places on Earth, even those with the harshest climates. To learn more, contact us today.