Fermented bases, flavor blenders & contract blending · Ultra Pure
Pick the base. Then we’ll blend it.
Sugar brew, neutral malt base and GNS flavor blenders — supplied in totes and tankers, with the tax class and label pathway spelled out before you order.
Talk to a blender → Which base do I need?Or call the beverage desk: 203.662.9761
Why this page exists
Most base decisions get made on price. Then the tax class bites.
The alcohol base you choose determines your federal excise rate, whether you need a COLA or FDA labeling, which retail channels you can reach, and whether your formula survives TTB review.
The bases
Three ways to get alcohol into a can — and what each one costs you
Everything below ships from Ultra Pure in totes and tankers. The differences that matter are tax class, label pathway and flavor contribution — not the marketing.
Sugar Brew™
- Source
- Fermented cane sugar
- Typical ABV
- ~19% (category runs 12–21%)
- Flavor
- Neutral, colorless
- Gluten
- Naturally gluten-free
- Label pathway
- FDA food labeling — no COLA
Neutral Malt Base
- Source
- Fermented malt, stripped by carbon or membrane filtration
- Typical ABV
- ~19% (category runs 16–21%)
- Flavor
- Near-neutral; slight grain character
- Gluten
- Contains malt
- Label pathway
- Depends on hops — see below
GNS Flavor Blenders
- Source
- Grain neutral spirit + blender
- Typical ABV
- 84–96%
- Flavor
- Neutral or character-forward
- Status
- TTB-approved as a nonbeverage flavor
- Label pathway
- Enters your product as a flavor, not a spirit
A neutral malt base is beer under the Internal Revenue Code. Whether it is also a malt beverage under the Federal Alcohol Administration Act depends on hops, not malt. 27 CFR 7.1 defines a malt beverage as fermentation “in potable brewing water, of malted barley with hops, or their parts, or their products.” No malted barley and hops means no Part 7, which means no COLA — and FDA food labeling under 21 CFR Part 101 applies instead.
So an unhopped malt base follows the same label pathway as a sugar brew. Many malt bases are hopped deliberately, precisely to secure malt-beverage status.
The chooser
Every base, including the ones we don’t sell
| Sugar Brew | Neutral Malt Base | Wine Base (OTS) | Distilled Spirit (GNS) | |
|---|---|---|---|---|
| Source | Fermented cane sugar | Fermented malt, filtered neutral | Fermented fruit — often orange peel or grape skin | Distilled grain or cane |
| Federal tax class | Beer | Beer | Wine | Distilled spirits |
| Federal rate | $18.00 / bbl $3.50/bbl first 60,000 bbl under CBMA |
$18.00 / bbl same CBMA tiers |
$1.07 / gal to 16% ABV $1.57 / gal 16–21% |
$13.50 / proof gallon |
| Typical ABV as supplied | 12–21% | 16–21% | 11–13%, up to 21% on OTS | 190–192 proof |
| Flavor contribution | Neutral, colorless | Near-neutral, slight grain | Neutral once filtered; fruit origin | Fully neutral |
| Gluten | Naturally gluten-free | Contains malt | Gluten-free | Depends on feedstock |
| Label pathway | FDA, 21 CFR 101 — no COLA | Part 7 + COLA if hopped; FDA if not | COLA at 7% ABV and above; FDA below | Part 5 + COLA |
| Retail channel | Beer channel in most states | Beer channel in most states | Wine channel; broad access | Liquor channel in many states |
| Where it wins | Neutrality and a clean gluten-free story | Established FMB programs | High ABV at a low tax rate | True spirits character and a cocktail claim |
| Where it loses | Tax advantage narrows above ~16% ABV against wine | Gluten, and a shrinking category | Fruit origin constrains some flavor directions | Tax and channel |
If your only criterion is tax at high ABV, “other than standard” wine wins. Fermented from orange peel or grape skin rather than juice and filtered to neutrality, it reaches up to 21% ABV while staying in the wine class at $1.57 per gallon. That is why it is the fastest-growing base in the category — wine-based RTDs reached roughly 16 million cases in 2025, about 5% of total US wine volume, and grew 16% in volume and 19% in value in the thirteen weeks to April 2026.
Sugar Brew wins on flavor neutrality and the gluten-free claim, not on tax.
The 49% rule
The line that turns your beer into a distilled spirit
This is the single most expensive mistake available in this category, and it is made at the formulation stage — long before anyone checks. 27 CFR 25.15(b), in full:
“You may use flavors and other nonbeverage ingredients containing alcohol in producing beer. Flavors and other nonbeverage ingredients containing alcohol may contribute no more than 49% of the overall alcohol content of the finished beer. For example, a finished beer that contains 5.0% alcohol by volume must derive a minimum of 2.55% alcohol by volume from the fermentation of ingredients at the brewery and may derive not more than 2.45% alcohol by volume from the addition of flavors and other nonbeverage ingredients containing alcohol. In the case of beer with an alcohol content of more than 6% by volume, no more than 1.5% of the volume of the beer may consist of alcohol derived from added flavors and other nonbeverage ingredients containing alcohol.“
Two things people miss. The 1.5% cap above 6% ABV is an additional constraint, not a replacement for the 49% test — both apply. And the regulation says fermentation “at the brewery,” not simply “by fermentation.” If you are bringing in a fermented base, the premises and transfer arrangements determine whether that alcohol counts toward your 51%.
Inside the limits
Taxed as beer. As little as $3.50 per barrel on the first 60,000 barrels under CBMA. Beer-channel retail access in most states.
and
Outside the limits
It is a distilled spirit. Producing spirits at a brewery is not authorized. Tax is due immediately on production, and the product is mislabeled and cannot lawfully enter commerce.
Consequences per TTB Industry Circular 2008-3, “Non-Compliant Flavored Malt Beverages.”
During the formula review, TTB evaluates ingredient ranges at their highest values. A formula that could exceed the limits at the top of its stated range is classified as a Distilled Spirits Specialty and returned to you. Brewers must also submit a written statement validating compliance, and the ranges must be consistent with it.
Flavor blenders
How alcohol gets into a beer-tax product without bringing spirits tax with it
A flavor blender is grain neutral spirit formulated with a blending agent, submitted to TTB on Form 5154.1, and approved by the Nonbeverage Products Laboratory as a nonbeverage product. That approval is the whole point: it enters your product as a flavor, not as a beverage spirit.
Formulated
GNS plus a blending agent — citric acid and ethyl lactate are the two you will see named in competitors’ product names, because the agent is the mechanism.
Approved
Filed on TTB F 5154.1 or through Formulas Online. TTB reviews the formula, and may confirm by organoleptic examination — which can include diluting the sample to 15% alcohol and tasting it.
Drawback taken upstream
Under 27 CFR 17.141 drawback is paid at $1.00 less than the effective tax rate. On $13.50 per proof gallon that returns $12.50 and leaves about $1.00 embedded in the flavor.
Blended in
It enters your formula inside the 49% allowance — and the 1.5%-of-volume cap if you are above 6% ABV. Your finished product still pays beer tax.
A brewer making a flavored malt beverage cannot claim nonbeverage drawback. Beer is a beverage; you are not manufacturing a nonbeverage product. Your benefit is simply that you buy a flavor carrying roughly $1.00 per proof gallon of residual tax instead of spirits carrying $13.50 — and then pay beer tax on the finished product.
Ultra Pure supplies GNS at 190 and 192 proof, organic and Non-GMO options, in totes, ISO containers, tankers and rail cars. Talk to us about whether a formulated blender or straight GNS with your own flavor house is the better route for your program — the answer depends on your volume and whether you already hold approved formulas.
Blending services
Or send us the spec and we’ll do the blending
Supplying the base and blending to a target are different jobs. We do both, out of a bonded network with the tank capacity to hold inventory while a program scales.
Standardization & proofing
Reduction to a target ABV with documented water quality and gauging, so what arrives is what your formula assumed.
Blend to spec
Match an existing profile or hit a new target across multiple lots. Analytics on every blend, not just the first.
Off-spec rework
Inventory that missed a target is not automatically a write-off. Send us the analysis and we will tell you honestly whether it can be brought back into spec or whether it cannot.
Bulk sourcing & offtake
Kentucky holds a record 17.1 million aging barrels and new-fill has fallen to roughly half its peak. If you are buying, it is the best market in a decade. If you are holding, we can talk about offtake.
Storage under bond
Tank and warehouse capacity across a multi-site bonded network, for taxpaid and in-bond flexibility while a program finds its footing.
Private label programs
Private label is where most of the growth in bulk volume has gone. We supply the liquid and the documentation; you own the brand.
Specs & packaging
Totes from stock. Tankers on request.
| Product | Typical ABV | Tax class | Stock format | Bulk |
|---|---|---|---|---|
| Sugar Brew™ | ~19% | Beer | 264-gal totes, in stock | 5,400 gal tanker, special order |
| Neutral malt base | ~19% | Beer | Totes | Tanker |
| GNS flavor blender | 84–96% | Nonbeverage flavor | Drums, totes | Tanker |
| GNS, 190–192 proof | 95–96% | Distilled spirits | 55-gal drum, 270-gal tote | 6,500 gal tanker, 28,500 gal rail car |
Category ABV ranges vary by supplier — sugar brew is published anywhere from 12% to 21% and neutral malt base from 16% to 21%. The figures above are the Ultra Pure spec. Confirm on the quote.
Common questions
What formulators ask us before the first order
Which base should I use for a 5% hard seltzer?
At 5% ABV both fermented bases keep you in the beer tax class and the 49% flavor allowance is generous — you may derive up to 2.45% ABV from added flavors. The decision comes down to flavor and label: sugar brew for neutrality and a gluten-free claim, malt base if you need malt-beverage status for a particular state’s retail rules. Wine base is worth a look if you want to go higher on ABV later.
What changes above 6% ABV?
The additional cap bites. Above 6% ABV, no more than 1.5% of the volume of the finished beer may be alcohol from added flavors — on top of the 49% test, not instead of it. In practice that means most of your alcohol has to come from the fermented base, so base strength and neutrality matter far more at 8% than at 5%.
Is neutral malt base a malt beverage?
Only if it contains hops. 27 CFR 7.1 requires malted barley with hops for a product to be a malt beverage under the FAA Act. An unhopped malt base is beer under the IRC but falls to FDA food labeling, the same pathway as a sugar brew. Many malt bases are hopped deliberately to secure malt-beverage status.
Do I need a COLA?
Not for a sugar-brew or unhopped-malt product — those follow FDA food labeling under 21 CFR Part 101. You do need one for a hopped malt beverage sold interstate, and for wine at 7% ABV and above. The Government Health Warning is required either way. Note that formula approval is a separate requirement from label approval, and most products sold as hard seltzer need one because of added flavoring or coloring.
Can I claim drawback on the alcohol in my FMB?
No. Beer is a beverage, so a brewer is not manufacturing a nonbeverage product and has nothing to claim. The saving is that a TTB-approved flavor blender carries roughly $1.00 per proof gallon of residual tax rather than $13.50 — the drawback was taken upstream by whoever manufactured the flavor. You then pay beer tax on the finished product.
Why is “hard seltzer” not enough on my label?
TTB does not accept it as a class designation on its own. It may be used in addition to a proper beer-type designation, not instead of one. This catches people late, usually after artwork is finished.
What are your minimums and lead times?
Stock totes generally ship within the week. Tankers are special order with a lead time quoted per item. Ask the beverage desk and you will get a real answer rather than a range.
Can you match a base I’m already using?
Usually. Send the current specification and a recent certificate of analysis. If we can match it we will say so; if the difference would show up in your finished product we will tell you that instead.
Tell us what you’re making. We’ll tell you which base fits.
Send us the target ABV, the flavor direction, the channel you need to sell into and your annual volume. You will get a straight recommendation — including when the answer is a base we don’t supply.
Ultra Pure, LLC · 50 Old Kings Highway North, Darien, CT 06820
Beverage desk: 203.662.9761
Request a quote & sample
We reply within one business day.