How Do You Make Nitro Coffee?


In short, there are 2 methods of turning cold brew coffee into nitro coffee. The first and more affordable method is to pre-infuse the kegs with high pressure nitrogen. The second would be to use an inline infuser, which mixes the cold brew coffee and nitrogen on the fly as it is dispensed.

Making nitro coffee is the process of infusing nitrogen gas with cold brew coffee, and can be done so in a couple of different ways:

  1. Pre-Infusing Kegs with Nitrogen - This is a great and very affordable way of making nitro coffee.  Pre-infusing kegs involves pressurizing the kegs of cold brew coffee at high pressures (typically 35PSI or higher) for a period of time.  Like any gas, it can take days for a gas to infuse into a liquid, but there are ways to speed up this process when pre-infusing kegs because waiting days for your nitro coffee is not always an option.  When pre-infusing your kegs, you want to make sure the liquid is as cold as possible.  Gasses tend to absorb better into colder liquids than room temp or warm.  Also, adjitating/shaking the keg will help force more gas into the keg and mix with the liquid, infusing it faster. 

    And lastly, using a Quick Cascade Keg Lid to infuse the keg with nitrogen gas will allow you to serve nitro coffee in a matter of minutes and maintain those rich frothy pours for the life of the keg.  Note that the Quick Cascade Lid will only work with Cornelius Ball Lock Kegs, not Commercial Sanke D Kegs.  This lid has a gas in post on top that you will attach your nitrogen gas line to, and a hose on the under side will carry the nitrogen gas, down to the bottom of the keg and dispurse through the diffusion stone, nitrogenating your keg from the bottom up.  This will allow you to start serving nitro coffee in minutes, and will also maintain frothy pours for the life of the keg, without having to constanatly pick up the keg and shake it.  Everytime you pour a nitro coffee, you remove some liquid from the keg, so more gas will be added to ballance the pressure.  These bursts of gas are added through the diffusion stone at the bottom of the keg, so you are constitantly infusing the keg from the bottom up with every pour. 
     
  2. Inline Nitro Infusion - This method is more expensive up font, but greatly cuts down on time and the number of steps taken in procuing nitro coffee.  The Inline Nitro Infuser mounts inside your existing draft system and turns a keg of flat cold brew coffee into nitro coffee inline as you pour.  No more pre-infusing kegs in order to acheive a rich froth nitro pour.  Just hook up your flat keg of cold brew and you are good to go!  This will save time and energy because you no longer need to take the extra time to pre-infuse the kegs.  Quick Cascade lids are not needed, so you have one less part to clean inbetween kegs.  This can also save you nitrogen gas as you only need to set the pressure with the nitrogen infuser to around 35PSI to acheive 

    The Nitro Infuser cleans inline with your draft system.  So as the steps already taken to clean and sanitize your draft beverage lines with a cold brew coffee cleaning & sanitizing kit will still apply here.  As you flush your draft lines, the cleaning solution will go through the inline nitro infuser and clean that as well.  

    Another great feature of the Nitro Infuser is the ability to easily conntrol the amount of nitrogen that you introduce into your cold brew.  The lever on the infuser will increase or decrease the amount of nitrogen that gets mixed in, giving you control on exactly how much head you want, leaving you with the perfect nitro coffee pour everytime.  

With these features in mind, you can better decide which method of making nitro coffee better suits your opperation.  


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