How to Use Nitro Growler Pro

Troubleshooting and User Guide for the Royal Brew Nitro Growler Pro

  1. For more foam, you can use the FOMAGAS Nitrous Oxide 8g cartridges (1 per batch 64 oz kit). Nitrous oxide adds a slightly sweet taste and you only need to use 1. For a classic stout flavor without the added sweetening, instead use 2 x Nitrogen cartridges for the 64 oz kit.

Nitrogen cartridges that we recommend on Amazon (wait a minimum of 5 minutes between adding each cartridge):

Nitrous Oxide Cartidges that we recommend on Amazon:

2.  Make sure you are using 40 oz of cold liquid, if you use too much, the gas doesn't have space to form. Due to cartridge manufacturing variance, if gas escapes, use only 32 oz, this will leave extra room for the gas to form in case a cartridge is extra pressurized.  Make sure the liquid is cold prior to adding the gas, gas needs cool temperatures to thrive!

3. Shake the Nitro Growler Pro well, after each cartridge is placed in the sleeve, shake up and down, side to side, for 15-20 seconds, and if using multiple cartridges, wait between each cartridge. Let it sit for a few minutes to absorb gas from the 1st cartridge, then add a 2nd cartridge! For best results put it in the fridge for 1 hour after the last cartridge is added (i.e. if only using one cartridge, you can put in fridge right away), to allow nitrogen to fully form (note: it will provide good pours right away, but optimal pour is 1 hour after gas is added).  

4. Shake the Nitro Growler Pro every 24 hours to extend the life of the nitrogen cartridge  

5. If you are brewing your own cold brew, you should do the following ratio: 6 oz of Ground Coffee *to* 24 oz of water = yields = 14 ounces of coffee concentrate (since 10 oz of water basically gets absorbed by the coffee grounds). Then, add 26 ounces of water to the coffee concentrate, and you will have a perfect 40 ounces of cold brew in your 64 oz nitro growler pro. Note: If gas escapes, use only 32 oz, this will leave extra room for the gas to form.

To make cold brew, you can use cheesecloth bags to soak your coffee grounds in a jar of water for 8-12 hours: https://amzn.to/2Jh0e2I

Or you can use a product like this: https://amzn.to/2QIY5B4

Otherwise, you can simply purchase store bought cold brew (40 oz of Starbucks or STOK flavors) and add it directly to the nitro growler pro, nitrogenate, shake, and wait 1 hour. Happy pouring!

6. If the cartridge holder is stuck inside the top, and you can't loosen it to start a new batch, use pliers (with a cloth to prevent scratching) to remove it, see photo below. 

Tip: For future batches, don't screw the cartridge holder onto the nitro growler pro so tight past a certain point, it does not need to be 'death grip' tightened onto the nitro growler pro!   

 cartridge holder stuck

Helpful Product Overview

Most FAQ

1. How can I get more foamy results? My foam isn't lasting consistently?

What type of cold brew are you using? If making your own cold brew, it's possible your cold brew composition isn't interacting well with foam if it is too watery or too concentrated. Try buying a store-bought cold brew to test if the foam responds better with a different blend of cold brew. We recommend Starbucks cold brew or Stok cold brew in 48oz variety for example, available at local stores.

***Or***   If you are brewing your own cold brew, you should do the following ratio: 6 oz of Ground Coffee *to* 24 oz of water = yields = 14 ounces of coffee concentrate (since 10 oz of water basically gets absorbed by the coffee grounds). Then, add 26 ounces of water to the coffee concentrate, and you will have a perfect 40 ounces of cold brew in your 64 oz nitro growler pro. Note: If gas escapes, use only 32 oz, this will leave extra room for the gas to form.

To make cold brew, you can use cheesecloth bags to soak your coffee grounds in a jar of water for 8-12 hours: https://amzn.to/2Jh0e2I Or you can use a product like this: https://amzn.to/2QIY5B4 To liven up the top layer of your pour, you can a few oz of cream in place of water. Please note most shops, such as Starbucks, do use cream in their cold brew before adding nitro, so this will help give you that same experience.

Make sure you are using 32-40 oz of liquid, if you use too much, the gas doesn't have space to form. Due to cartridge manufacturing variance, if gas escapes, use only 32 oz, this will leave extra room for the gas to form in case a cartridge is extra pressurized. You should also try Nitrous Oxide cartridges, instead of Nitrogen, if you want more foamy results.

For the most foamy results, be sure to shake the nitro growler pro well after each cartridge and daily, before pouring the first pour of the day. Be sure to wait a minimum of 5 minutes between adding each cartridge if using multiple cartridges, i.e let it sit for a few minutes to absorb gas from the 1st cartridge, then add a 2nd cartridge!  

2. No liquid is flowing when I turn open the tap handle.

There is a small particle (i.e. coffee grounds) clogging the tapping system.

First, when the growler is empty or when gas is released, unscrew the stout faucet and test to see if liquid flows out the faucet when the faucet is removed by holding it under running sink water with the knob in open position. If liquid does not flow out of the faucet after the faucet is removed, then the faucet is clogged. Clean out the internal pieces of the faucet and tip with the small brush, and re-test. Use the small brush to poke thru the bottom of the faucet tip and soak the entire faucet in warm soapy water.

If the faucet is working fine, then it means the metal straw/tube is clogged. With the faucet removed, run sink water directly onto the connection point on the growler and rinse thoroughly with water to dislodge any small particles or chunks that may be blocking the flow of the liquid. See video:

 

3a. My faucet tip is stuck on, I can't loosen it!

If the nozzle is stuck, first use the provided wrench to remove it. If it still stuck, put the faucet into a freezer or bowl of ice water, and then begin boiling a pot of water. When the water boils, remove the faucet and place the full tip of the faucet down into the boiling water. Now using gloves, attempt to remove the tip with your hands, and if necessary you can use jaw locking pliers (with a cloth to prevent scratching). The expansion of metal from the cold/hot should help detach the assembly.  

Q&A Royal Maker Nitro Coffee

 

Additional FAQ

 

1. Where can I buy Nitrogen or Nitrous Oxide cartridges?

Nitrogen or Nitrous Oxide cartridges can be found at most local super markets, cooking stores and are readily available on Amazon and other online retailers. For the best pricing, we recommend purchasing the chargers through Amazon.com. Links to find Nitrogen cartridges that we recommend on Amazon:

Links to find Nitrous Oxide Cartidges that we recommend on Amazon:

2. What kind of Nitrogen chargers does the Royal Brew Nitro Growler Pro use?

The Royal Brew Nitro Growler Pro will work with any 2 gram Nitrogen charger, 2 per batch. Let it sit for a few minutes to absorb gas from the 1st cartridge, then add a 2nd cartridge!   

3. What kind of N2O chargers does the Royal Brew Nitro Growler Pro use?

The Royal Brew Nitro Growler Pro will work with any 8 gram N2O charger, 1 per batch.  

4. How long do beverages last in the Royal Brew Nitro Growler Pro?

Nitrous oxide (N2O) and Nitrogen is bacteriostatic (inhibits bacterial growth), so most beverages will typically stay fresh in the refrigerator for up to two weeks.  

5. What types of beverages can be used in the Royal Brew Nitro Growler Pro?

Besides cold brew coffee, the Royal Brew Nitro Growler Pro can be used to infuse lemonade, beer, iced tea, seltzer water and pretty much any of your favorite cold beverages! The only beverages we don’t recommend using in the Royal Brew Nitro Growler Pro are those that contain small particles or chunks (orange juice with pulp, smoothies, drinks with seeds, etc.). Small particles can clog the tapping system.

Also, avoid beverages that have been previously carbonated (beer and sodas). You can let beer or soda go flat before adding, if you would like to use them in the system. You can use any 8g CO2 cartridge to carbonate seltzer water or brewed beer that has not been bottle carbonated. You only need to use 8g CO2 cartirdge per batch of 32-40 oz of liquid. CO2 cartridges that we recommend on Amazon: Click Here  

6. Why can’t I put beverages that have been previously carbonated (beer & soda) in the Royal Brew Nitro Growler Pro?

The nitro tapping system for the Royal Brew Nitro Growler Pro does not control how much gas goes inside the Growler from the N2O charge. This means that when you fill the Growler Pro with a beverage that has been previously carbonated/fermented (beer, soda, ect.) and add additional N2O, you will get excess gas inside the Growler Pro. In short, this means you will end up with mostly foam being poured. We also do not recommend infusing N2O into beverages that have already been infused with CO2.  

7. How do you clean the Royal Brew Nitro Growler Pro?

As soon as all of the contents inside have been finished and the gas has been released, the Growler Pro and the tapping system should be rinsed with hot water. This will help avoid dry, sticky buildup. Always hand wash. It is not dishwasher safe.  

8. The Growler Pro is 64 oz but the instructions say to not put more than 40 oz in the Nitro Growler Pro. Why is that?

You need to leave room inside the growler for the gas and the liquid to have room to mix together.

9. What is the correct ratio for brewing your own coffee?

If you are brewing your own cold brew, you should do the following ratio: 6 oz of Ground Coffee *to* 24 oz of water = yields = 14 ounces of coffee concentrate (since 10 oz of water basically gets absorbed by the coffee grounds). Then, add 26 ounces of water to the coffee concentrate, and you will have a perfect 40 ounces of cold brew in your 64 oz nitro growler pro. Note: If gas escapes, use only 32 oz, this will leave extra room for the gas to form.

10. Can I use with CO2 to make my own seltzer water?

Yes, the kit is fully compatible with CO2.   

 

QUICK START GUIDE

  • 1. Add cold brew coffee (or coffee concentrate + water) to the growler. Important: To allow gas to form, only fill the growler up to 50%-75% (32-40 ounces) maximum with coffee! Place inner cap onto growler.
  • 2. Faucet: usually comes pre installed! If so, skip to step 3.
    • If uninstalled: align the faucet +  spring into growler/faucet connection point. Use some force to depress the spring into the connection point, then tightly screw the nut onto the faucet to complete the connection. Lastly, use wrench to tighten faucet onto growler.

    grower pro faucet

  • 3. Place one 8g Nitrous Oxide cartridge (not included) into cartridge holder, and screw the loaded holder onto the growler. Next, screw the cap onto the growler tightly while you hear a hissing noise. You should hear the ‘whistle’ sound of nitrogen injection and tighten fully. Shake the growler well (10-15 seconds). If using N2O Nitrous Oxide Cartridges, you only need to use one per batch, use FOMA GAS Nitrous Oxide cartridges or any 8g Nitrous Oxide cartridge (not included). Proceed to step 4.

      • Note: Also works with N Nitrogen, if using Nitrogen, use two 2 gram Nitrogen cartridges per batch -- after putting in the first cartridge, let the growler sit for a few minutes to absorb gas from the 1st cartridge, then add a 2nd cartridge, and then put into fridge for 1 hr!
      growler pro cartridge insert

        • 5. After shaking the growler well, then, put it in refrigerator for more than 1 hour.
        • 6. Enjoy your nitro cold brew coffee!
          • Note: All tap systems drip due to excess foam, so tap your glass on the edge of the stout faucet tip after you've closed the tap handle or lightly shake the growler forward to get the remaining coffee to flow out of the tip. it is also OK to use a paper towel or cloth to dab spout.

        More Troubleshooting Info:

          1) Leaking connections:

        • Faucet body leakage: Using the included wrench to tighten the faucet body onto the growler.
        • Tap handle leakage: Tighten the tap lock connector using fingers.

        2) Leaking from the stout faucet tip after pouring: set your glass on the edge of the stout faucet tip after you've closed the tap handle and lightly shake the Growler Pro forward to get the remaining coffee to flow out of the tip. Use a paper towel or cloth to dab the remaining excess.

        Note: After you close the tap handle there is still excess foam in stout faucet tip and there is no pressure from the Growler Pro (because the tap is closed) to force the remaining foam out of the stout faucet tip. Once the foam starts to settle, it then leaks out of the end of the faucet tip. This occurs with most tapping systems, especially nitro taps with a stout spigot. The Growler Pro itself isn't actually leaking, it's a matter of getting all of the foam out of the faucet tip after you've closed the tap.  

        3) No foaming head or no cascading effect: Growler Pro is overfilled. We recommend filling the Growler Pro with 32-40 ounces of liquid beverage for 64 oz Growler Pro  (note: use 32 oz for ideal results). Not all beverages will pour the same when they are nitrogenated. The more experience you get using the Growler Pro, the better you will be able to judge how much fluid to add to the Growler Pro to get the best pour possible.  

        4) High pitched whistle when tightening the cartridge holder containing the N2O onto the Growler Pro: Tighten the cartridge holder in a quick and smooth motion. When the cartridge is tightened slowly, the tip of the N20 charge is being punctured slowly. This results in the N20 being slowly released into the Growler Pro and it can make a high pitched whistling noise. Please be aware that there is nothing wrong with your Growler Pro and no harm is being done to the Growler Pro. We only want you to be aware of why/how this happens and not to worry should you hear it. All of the N20 will still make it inside the Growler Pro and the end result with the beverage will be the same.  

        5) Gas escaping through the pressure relief valve when tightening the N2O onto the Growler Pro. The Growler Pro is overfilled. Should you overfill the Growler Pro, you will notice that some of the N20 will be released through the pressure release valve. This is perfectly normal and nothing to be alarmed by. There needs to be enough empty space in the Growler Pro for the N20 and the beverage to mix. If gas escapes, use only 32 oz, this will leave extra room for the gas to form. Some cartridges contain more gas than advertised due to manufacturing variance, you can account for this by allowing for more space in your Growler Pro. 

        6) No liquid flowing when opening the tap handle:

        There is a small particle (i.e. coffee grounds) clogging the tapping system.

        First, when the growler is empty or when gas is released, unscrew the stout faucet and test to see if liquid flows out the faucet when the faucet is removed by holding it under running sink water with the knob in open position. If liquid does not flow out of the faucet after the faucet is removed, then the faucet is clogged. Clean out the internal pieces of the faucet and tip with the small brush, and re-test. Use the small brush to poke thru the bottom of the faucet tip and soak the entire faucet in warm soapy water.

        If the faucet is working fine, then it means the metal straw/tube is clogged. With the faucet removed, run sink water directly onto the connection point on the growler and rinse thoroughly with water to dislodge any small particles or chunks that may be blocking the flow of the liquid.

        Cleaning Instructions

        Growler Pro: Fill the Growler Pro with warm soapy water and scrub the inside of the Growler Pro with the large cleaning brush. Rinse. Turn upside down to air dry. Do not wash in dishwasher.  

        Tapping System: remove the faucet and internal spring from the growler and run hot water through back of the faucet with the tap handle in the open position. If contents have dried soak in warm soapy water and then rinse using the same rinsing method. Scrub the inside of the growler top with the small cleaning brush and clean with warm soapy water. Do not wash in dishwasher.  

        Care Guide

        Make sure inside of Growler Pro is completely dried before storing with cap or tapping system attached. Do not microwave or freeze. Always hand wash Growler Pro and tapping system. Not designed for hot liquids, nonfood, or highly acidic materials. Use for conditioning or fermenting at own risk.