Brands:All Brands TMCRAFT GrowlerWerks NutriChef EdgeStar BrüMate YETI

Brand guide · 2 models compared · Oct 2026

GrowlerWerks Mini Keg & Draft: Lineup, Key Specs & How They Compare

Portland-based creator of the uKeg 64 and uKeg 128—combining double-wall vacuum stainless insulation, an external sight tube, and a dial-adjustable VPR cap.

Quick verdict

Best for: Double-wall vacuum insulation, sight glass & VPR auto-regulator cap. Focus: uKeg 64 & uKeg 128 Vacuum-Insulated Pressurized Growlers. Top GrowlerWerks model in our catalog: GrowlerWerks uKeg 64 Vacuum-Insulated Pressurized Growler.

See the lineup ↓Open compare tool

Which GrowlerWerks should you buy?

Best vacuum 64 ozGrowlerWerks uKeg 64 Vacuum-Insulated Pressurized Growler64 oz Vacuum Pressurized · Premium Vacuum Keg

Check price on Amazon

Best premium 128 ozGrowlerWerks uKeg 128 Vacuum-Insulated Half-Gallon+ Growler128 oz Vacuum Pressurized · Flagship Vacuum Keg

Check price on Amazon

GrowlerWerks specs, side by side

Pick	Best for	Capacity & Format	Wall & Insulation	CO2 / Cooling System	Tap & Hardware Spec	Listing
Premium Vacuum KegGrowlerWerksGrowlerWerks uKeg 64	Best vacuum 64 oz	64 oz (0.5 gal / 4 pints)	Double-wall vacuum 18/8	8g non-threaded · 0–15 PSI	VPR cap · Sight glass · 10.9"	Check price on Amazon
Flagship Vacuum KegGrowlerWerksGrowlerWerks uKeg 128	Best premium 128 oz	128 oz (1 gal / 8 pints)	Double-wall vacuum 18/8	16g non-threaded · 0–15 PSI	VPR cap · Sight tube · 14.6"	Check price on Amazon

Every GrowlerWerks model, ranked

GrowlerWerksPremium Vacuum KegBest for: Best vacuum 64 oz

GrowlerWerks uKeg 64 Vacuum-Insulated Pressurized Growler

Combines double-wall vacuum-insulated stainless steel, a brass sight glass + pressure gauge, and an automatic VPR regulator cap in a fridge-shelf-friendly 10.9-inch height.

Capacity & Format64 oz (0.5 gal / 4 pints)

Wall & InsulationDouble-wall vacuum 18/8

CO2 / Cooling System8g non-threaded · 0–15 PSI

Tap & Hardware SpecVPR cap · Sight glass · 10.9"

Watch out for: Uses 8-gram non-threaded CO2 chargers tucked into the cap sleeve rather than 16g threaded cartridges.

Check price on AmazonSee live price & delivery

Compare side by side

GrowlerWerksFlagship Vacuum KegBest for: Best premium 128 oz

GrowlerWerks uKeg 128 Vacuum-Insulated Half-Gallon+ Growler

Doubles the uKeg capacity to a full 128 oz (8 pints) with double-wall vacuum insulation, an integrated pressure gauge, and a tap-lock faucet for group outings.

Capacity & Format128 oz (1 gal / 8 pints)

Wall & InsulationDouble-wall vacuum 18/8

CO2 / Cooling System16g non-threaded · 0–15 PSI

Tap & Hardware SpecVPR cap · Sight tube · 14.6"

Watch out for: Requires 16-gram unthreaded food-grade CO2 cartridges and costs more than single-wall mini kegs.

Check price on AmazonSee live price & delivery

Compare side by side

Check on any GrowlerWerks listing

✓The exact model, size or pack on the listing (ASIN) matches the one in our table.
✓Capacity & Format: confirm it on the listing before you buy.
✓Wall & Insulation: confirm it on the listing before you buy.
✓CO2 / Cooling System: confirm it on the listing before you buy.
✓Tap & Hardware Spec: confirm it on the listing before you buy.

About GrowlerWerks

Portland-based creator of the uKeg 64 and uKeg 128—combining double-wall vacuum stainless insulation, an external sight tube, and a dial-adjustable VPR cap.

KegCan.com is independent and not affiliated with or endorsed by GrowlerWerks. Trademarks belong to their owners.

GrowlerWerks vs…

GrowlerWerks vs TMCRAFT→GrowlerWerks vs NutriChef→GrowlerWerks vs EdgeStar→GrowlerWerks vs BrüMate→Open the compare tool →

GrowlerWerks FAQ

Who is GrowlerWerks best for?

Portland-based creator of the uKeg 64 and uKeg 128—combining double-wall vacuum stainless insulation, an external sight tube, and a dial-adjustable VPR cap. Best for: Double-wall vacuum insulation, sight glass & VPR auto-regulator cap.

Is KegCan.com affiliated with GrowlerWerks?

No. KegCan.com is independent, GrowlerWerks doesn’t pay for placement, and all brand names and trademarks belong to their owners.

How long does beer stay fresh and carbonated in a pressurized mini keg?

Unlike a standard glass jug growler—which loses carbonation within 24 to 36 hours after opening—a CO2-pressurized stainless mini keg (like the TMCRAFT 128 oz or GrowlerWerks uKeg) maintains positive CO2 headspace pressure and keeps oxygen out, preserving fresh draft carbonation for 2 to 3 weeks when refrigerated.

Best GrowlerWerks in our catalog

GrowlerWerks uKeg 64 Vacuum-Insulated Pressurized Growler

Check price on Amazon