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Royal Brew 128 oz Nitro Keg Review: A Gallon of Nitro for Steady Drinkers

Royal Brew's 128 oz Home Keg is the gallon version of its nitro cold brew system: a stainless steel keg with a stout-style faucet that infuses cold brew you have already made with nitrogen or nitrous oxide from small cartridges, then pours it with the creamy, cascading head of a café nitro tap. The pour itself is the easy part. Whether the bigger keg is the right one depends on how fast your household drinks, how much fridge height you can spare and how many cartridges you are happy to feed it.

By Whimsical Pris, Kitchen Editor Published September 27, 2026 Updated September 27, 2026
4.2Our score
The Original Royal Brew Nitro Cold Brew Coffee Maker - Gift for Coffee Lovers - 128 oz Extra Large Home Keg, Nitrogen Gas System Coffee Dispenser Kit The Original Royal Brew Nitro Cold Brew Coffee Maker - Gift for Coffee Lovers - 128 oz Extra Large Home Keg, Nitrogen Gas System Coffee Dispenser Kit, view 2 The Original Royal Brew Nitro Cold Brew Coffee Maker - Gift for Coffee Lovers - 128 oz Extra Large Home Keg, Nitrogen Gas System Coffee Dispenser Kit, view 3 The Original Royal Brew Nitro Cold Brew Coffee Maker - Gift for Coffee Lovers - 128 oz Extra Large Home Keg, Nitrogen Gas System Coffee Dispenser Kit, view 4 The Original Royal Brew Nitro Cold Brew Coffee Maker - Gift for Coffee Lovers - 128 oz Extra Large Home Keg, Nitrogen Gas System Coffee Dispenser Kit, view 5 The Original Royal Brew Nitro Cold Brew Coffee Maker - Gift for Coffee Lovers - 128 oz Extra Large Home Keg, Nitrogen Gas System Coffee Dispenser Kit, view 6 The Original Royal Brew Nitro Cold Brew Coffee Maker - Gift for Coffee Lovers - 128 oz Extra Large Home Keg, Nitrogen Gas System Coffee Dispenser Kit, view 7
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Prices shown were correct on September 27, 2026 and change frequently.

TL;DRThe Short Answer: Is the Royal Brew 128 Oz Nitro Keg Worth It?

A gallon keg only pays off if your household drinks nitro cold brew quickly. Once it is half empty there is far more headspace to fill with gas, so keeping the pour creamy takes extra cartridges, and at 17.5 inches tall it can crowd a fridge shelf. Kept full and cold, it pours smooth, sweet, café-style cascading coffee.

NoFussDeal rates the Royal Brew 128 Oz Nitro Keg 4.2 out of 5 at $172.99. Last updated September 27, 2026.

Key Facts

Capacity
128 fluid ounces
Material
Stainless Steel
Color
128 oz Keg - Stainless Steel
Item Weight
5.9 pounds
Brand
ROYAL BREW EST. 1987
Coffee Maker Type
Cold Brew Coffee Maker

What Stands Out

  1. The 128 oz stainless steel keg holds 8 pints of cold brew, double the batch of Royal Brew's 64 oz keg.
  2. Works with nitrogen (N2) cartridges for the classic cascading pour or nitrous oxide (N2O) for a sweeter, creamier head; cartridges are sold separately.
  3. A stout-style faucet, which Royal Brew says it updated for smooth pouring without leaks, forces the gas out of solution as it pours.
  4. Royal Brew gives the size as 17.5 inches from the top of the tap handle to the bottom of the keg, with a 5.25 inch keg body and 7.5 inches across the faucet.
  5. Fully manual: no power, no pump and nothing to program, just coffee, gas and the fridge.
  6. Royal Brew is a US-owned small business offering 24/7 customer support and setup videos.

Strengths and Drawbacks

What works

  • Pours smooth, sweet cold brew with a café-style cascading head.
  • Holds 128 oz, so a busy household or office makes cold brew half as often.
  • Works with N2 for a classic pour or N2O for a creamier, sweeter head.
  • Fully manual, with no power, pump or settings to learn.
  • Stainless steel keg is simple to rinse and clean after each batch.
  • Royal Brew offers 24/7 customer support and setup videos for the first batch.

What does not

  • Leaks are the most common complaint, and one owner's valve leaked after six months.
  • A half-empty gallon keg needs more gas to stay lively, and one owner found it poured less well than the smaller version.
  • At 17.5 inches to the top of the tap, it needs a tall fridge shelf or door.
  • Cartridges are sold separately and add to the cost of every batch.
  • Slow from start to glass: cold brew takes hours, then each charge needs time to settle and chill.
  • Marketed as a US company, but one owner found the box marked made in China.

Features in Depth

01

The 128 oz Keg: Capacity and Fridge Fit

Capacity 128 fl oz (8 pints) Height With Tap 17.5 in Empty Weight 5.9 lb

The keg holds 128 fluid ounces, or 8 pints, which is the whole reason to choose it over Royal Brew's 64 oz model. For a household with more than one nitro drinker, or an office where the tap is in constant use, that means making cold brew half as often. The cost is size. Royal Brew gives the height as 17.5 inches from the top of the tap handle to the bottom of the keg, with a 5.25 inch keg body and 7.5 inches across from the faucet to the far side, so measure your tallest fridge shelf or door compartment before ordering. One owner stores it in the door of a garage fridge, while another had to rearrange their kitchen fridge to keep it there daily. Empty, it weighs 5.9 pounds; a full gallon of coffee adds roughly another eight, so a sturdy shelf matters. Two owners fill it to about 96 oz rather than the full gallon, which leaves headspace for the gas and still makes a big batch. Stainless steel keeps light out of the coffee and cleans without holding onto old flavours.

$172.99 4.2/5 Check price
02

N2 or N2O: Choosing the Gas

Gas Options N2 or N2O cartridges Cartridges Included None, sold separately Operation Manual

Royal Brew says the keg works with both nitrogen (N2) and nitrous oxide (N2O) cartridges, which are sold separately, and the two give quite different drinks. Nitrogen produces the classic nitro pour: a fine, cascading head and a silky texture with little change to the coffee's taste. Nitrous oxide dissolves far more readily into the coffee, so it gives a thicker, creamier head and a noticeably sweeter impression, which is why one owner prefers it hands down and another describes the result as creamy and sweet with nothing added. Cartridge sizes differ too. One owner charges about 96 oz with four 2 g nitrogen cartridges, while another uses two 8 g nitrous oxide chargers for the large keg, and a third adds another cylinder as the level drops. The practical lesson is that gas is a running cost. A bigger keg that sits half full for days takes more of it to keep each glass lively, so budget for cartridges as well as coffee before deciding the gallon size suits you.

$172.99 4.2/5 Check price
03

Stout Faucet and the Cascading Pour

Faucet Type Stout-style tap Pour Cascading nitro head Material Stainless steel

The stout-style faucet is what turns charged coffee into nitro coffee. As the coffee is forced through a restrictor inside the tap, dissolved gas breaks out into tiny bubbles, giving the surging cascade and dense head of a café pour. Royal Brew says it updated this faucet for smooth pouring without leaks, and when the coffee is cold and properly charged, the result earns steady praise: café-quality nitro that one owner calls a little luxury every day, and inches of foam for another owner who worked out how much gas his batch needed. A flat pour almost always means too little gas, gas added too quickly, or coffee that is not cold enough. Drips are the other talking point. One owner found that apparent leaking was simply coffee left sitting in the nozzle, which emptied after a few taps, but leakage is still the theme that draws the most complaints, and one owner's valve leaked after six months of use. Checking the O-ring between the faucet and the spear assembly at each refill is the easiest insurance.

$172.99 4.2/5 Check price
04

Setup, Cleaning and Support

Power Needed None Support 24/7 customer support Build Stainless steel keg

There is nothing electrical to set up. You fill the keg with cold brew, seat the faucet and spear assembly with the correct O-ring, tighten it with the wrench that one owner found in the box, then charge it with cartridges and chill it. The first batch is where most mistakes happen, and Royal Brew leans on its support team for that: it promises 24/7 customer support and troubleshooting videos, and owners credit the team with quick answers and setup videos that got a first batch right. Cleaning is simple because the keg is a smooth stainless cylinder, and two owners single out how easy it is to rinse straight after emptying. Only cold brew should go in; dairy spoils quickly, sticks to seals and, as one owner discovered with heavy cream, flattens the foam. One owner also noted that the box was marked as made in China despite the company's US branding, which is worth knowing if origin matters to you, since Royal Brew describes itself as US owned rather than US made.

$172.99 4.2/5 Check price

How We Scored It

Based on
The manufacturer's published specifications and the product's live Amazon listing.
Owner rating
4.3 out of 5 on Amazon, recorded September 27, 2026
How we score
We score each thing that comes up most in owner feedback on the Royal Brew 128 oz Nitro Keg. Seven things come up most in owner feedback: four draw praise, two split opinion and one draws mostly complaints. Its ratings average 4.3 stars (75% five stars, 5% four, 5% three and 15% one or two), so every score starts at 86, that average on a 100 point scale. Where opinion is split, we take off 6. Where it draws mostly complaints, we take off 12. Then we read eight owner reviews in full, including the critical ones, and move the score up to 5 points either way depending on how the owners who mention it rated the product. Our overall score starts from the same 4.3 star average and loses 0.1 for each thing that draws mostly complaints, with 0.1 more when at least a tenth of ratings are one star, never more than 0.3 in all. Here that takes off 0.1, which gives 4.2. Read our editorial standards

Quality

Two of the eight owner reviews we read mention it. All of them gave the product four or five stars. Score 91: we started at 86 and added 5 because the owner reviews that mention it are positive.

91Positive

Ease Of Use

Five of the eight owner reviews we read mention it. All of them gave the product four or five stars. Score 91: we started at 86 and added 5 because the owner reviews that mention it are positive.

91Positive

Nitro Cold Brew

Six of the eight owner reviews we read mention it. All of them gave the product four or five stars. Score 91: we started at 86 and added 5 because the owner reviews that mention it are positive.

91Positive

Taste

One of the eight owner reviews we read mentions it. That owner gave the product four or five stars. Score 86: its 4.3 star average on a 100 point scale.

86Positive

Functionality

None of the eight owner reviews we read mention it. 20% of all ratings are three stars or fewer, which is where complaints like this usually sit. Score 80: we started at 86 and took off 6 because opinion is split.

80Mixed

Leakage

Three of the eight owner reviews we read mention it. Two gave the product four or five stars and one gave it three or fewer. 20% of all ratings are three stars or fewer, which is where complaints like this usually sit. Score 74: we started at 86 and took off 12 because it draws mostly complaints.

74Needs Improvement

Owner Satisfaction

75% of ratings are five stars and 5% are four. 5% are three stars and 15% are one or two. A sizable share of ratings sit low, so weigh the drawbacks below as heavily as the praise. Two of the eight owner reviews we read gave it three stars or fewer. We look for the critical ones on purpose. Score 86: its 4.3 star average on a 100 point scale.

86Mostly Positive

Value for Money

Four of the eight owner reviews we read mention it, and those owners gave the product four or five stars, so the complaints come from the wider group of buyers. None of the reviews we read say what goes wrong, so this score rests on the buyer ratings. 20% of all ratings are three stars or fewer, which is where complaints like this usually sit. Score 80: we started at 86 and took off 6 because opin…

Read the full note (413 characters)

Four of the eight owner reviews we read mention it, and those owners gave the product four or five stars, so the complaints come from the wider group of buyers. None of the reviews we read say what goes wrong, so this score rests on the buyer ratings. 20% of all ratings are three stars or fewer, which is where complaints like this usually sit. Score 80: we started at 86 and took off 6 because opinion is split.

80Mixed

Specifications

Size and weight

Capacity
128 fluid ounces
Item Weight
5.9 pounds

Materials and warranty

Material
Stainless Steel
Color
128 oz Keg - Stainless Steel

Other specifications

Brand
ROYAL BREW EST. 1987
Coffee Maker Type
Cold Brew Coffee Maker

What Buyers Say

The coffee it pours is the headline: smooth, sweet and creamy enough to drink without milk or sugar, with a proper cascading head once the gas is right. Assembly and cleaning are simple, and Royal Brew's support team earns credit for walking new owners through the first batch. Two things split opinion. Leaks come up most among the complaints, from drips at the faucet that turn out to be leftover coffee to a valve that failed after months of use. Value is mixed too, since the keg is only half the running cost and cartridges are sold separately.

Based on 150 Amazon customer ratings, averaging 4.3 out of 5, recorded 27 September 2026. See the reviews on Amazon

5 stars 75%
4 stars 5%
3 stars 5%
2 stars 6%
1 stars 9%
★★★★★

A little luxury at home every day!

We have now owned this amazing Nitro Cold Brew Coffee Maker for one month. We loved it from the start but I wanted to have it for a little while so I could provide an adequate review. I thou… Read it on Amazon
Elle Cee · September 29, 2020 · Verified
★★★★★

Cascading Nitro Coffee System - Best Nitro Coffee on the Planet

Ok, I purchased the Royal Brew over their competitors based on watching videos on Youtube and Reviews. I know people have complained about a lot of leaking systems and was concerned about th… Read it on Amazon
Peter J. Webrg Jr. · March 24, 2021 · Verified
★★★★★

So worth it! A must for coffee lovers

We ordered this after a having Nitro coffee for the first time at a family member’s house. The maker itself is easy enough to use. It doesn’t come with the N20 or N2 canisters, but they are … Read it on Amazon
Sarah · April 17, 2021 · Verified
★★★★★

Easy and fun

I bought this for my husband for his Christmas present when I noticed he was missing nitro brew floats that we enjoy at the beach. He has really enjoyed getting to know how to use it, and ma… Read it on Amazon
Olivia Marshall · February 3, 2023 · Verified
★★★★★

Delicious Nitro Cold Brew!

Extremely pleased with the unit. We went with the 128oz model and are extremely happy that we did. Super easy to clean up immediately after emptying the keg. Ordered Nitrogen chargers from b… Read it on Amazon
Ian · June 24, 2021 · Verified
★★★★★

What you need to know...128 oz keg

First of all, I want to say that the customer service is impeccable. I own a business and appreciate the quick response.So, we tried many batches until we hit the sweet spot. We use an organ… Read it on Amazon
LKW · March 14, 2020 · Verified

Setting It Up

  1. Make and chill the cold brew

    Brew your cold brew ahead, strain it well so no grounds reach the faucet, and chill it fully. Cold coffee absorbs gas far better than coffee at room temperature.

  2. Fill the keg, leaving headspace

    Pour the coffee into the clean keg. Two owners fill it to about 96 oz rather than the brim, which leaves room for the gas and still makes a large batch.

  3. Seat the faucet assembly

    Fit the correct O-ring between the stout faucet and the spear assembly, then tighten the assembly firmly with the included wrench. A missing or misplaced O-ring is the usual cause of early leaks.

  4. Charge with N2 or N2O

    Add cartridges one at a time as the instructions state, shaking the keg after each and giving it time to settle. Nitrogen gives the classic cascade; nitrous oxide gives a creamier, sweeter head.

  5. Chill, then pour

    Rest the charged keg in the fridge before the first glass, then open the tap fully in one smooth pull. Add another cartridge as the level drops and the pour loses its head.

Common Questions

How much does the Royal Brew 128 oz keg hold?

It holds 128 fluid ounces, or 8 pints. Two owners fill it to about 96 oz instead of the brim, which leaves headspace for the gas and still makes a big batch.

Should I use N2 or N2O cartridges?

Either works. Nitrogen (N2) gives the classic cascading nitro pour with little change to the taste, while nitrous oxide (N2O) gives a creamier head and a sweeter impression. Cartridges are sold separately.

Will the 128 oz keg fit in my fridge?

Royal Brew gives the height as 17.5 inches from the top of the tap handle to the bottom of the keg, with a 5.25 inch keg body and 7.5 inches across the faucet. Measure your tallest shelf or door compartment before buying.

Does it make cold brew?

No. The keg infuses and pours cold brew you have already made. Brew and strain your cold brew separately, chill it, then fill and charge the keg.

Why is my keg dripping or leaking?

Coffee left in the nozzle after a pour can drip for a while, and a few taps on the faucet clears it. A real leak usually points to a missing or misplaced O-ring or a loose assembly, and one owner had a valve leak after six months, so contact Royal Brew support if tightening does not fix it.

Is the 128 oz keg better than the 64 oz version?

Only if you drink a lot. The bigger keg halves how often you make cold brew, but as it empties it needs more gas to keep the pour lively, and one owner found the smaller version poured better. For one drinker, the smaller keg is the easier choice.

On Video

Royal Brew Nitro Cold Brew Coffee Maker Home Keg Kit 128 oz

Royal Brew

The Verdict

4.2Out of 5

Royal Brew's 128 oz keg does what a home nitro system should: it turns ordinary cold brew into a smooth, sweet, cascading pour that tastes like a café tap, with no power, no pump and not much to learn. Its gallon capacity is the reason to buy it and the reason to think twice. A household or office that empties a batch in a few days will make cold brew half as often, but a big keg that sits half full needs more gas to keep each glass lively, and one owner who knew the smaller version preferred it. Leaks are the complaint that comes up most, from harmless drips in the nozzle to a valve that failed after months, so seals deserve a look at every refill. Budget for cartridges and measure your fridge first, and it is a rewarding way to make café-style nitro at home.

Who should buy it

  • Households with several nitro drinkers
  • Offices with a tall fridge and steady demand for cold coffee.
  • Cold brew fans who want to tune the pour with N2 or N2O.
  • Anyone hosting gatherings who wants café-style nitro on tap.

Who should skip it

  • Solo drinkers who would leave a gallon keg half full for days.
  • Anyone without a fridge shelf or door tall enough for a 17.5 inch keg.
  • Buyers who want nitro coffee on demand without planning around cold brew and settling time.

A capable gallon nitro keg that rewards households who drink it fast; smaller or slower drinkers may be happier with a smaller keg.

Check price on Amazon

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