UMAi Dry Dry Aging Bags Ribeye/Striploin

Name: UMAi Dry Dry Aging Bags Ribeye/Striploin
Brand: UMAi Dry
Price: 29 USD
Availability: InStock

~$9.67 per bag

UMAi's core packet: three 12 x 24 in membrane bags sized for a boneless ribeye, striploin or sirloin subprimal of about 12-18 lb. The membrane bonds to the meat and passes moisture and oxygen, so the cut ages in an ordinary frost-free fridge. UMAi also sells the same three bags without the brochure as a cheaper restock packet.

Approx. price

~$29

maker's list price, not a live price

Bags per pack

Price per bag

~$9.67

pack price ÷ bags

Largest cut

18 lb

what the maker sizes the bag for

Vacuum sealer

recommended

Best for: A first-time ager with a boneless ribeye or strip loin and a spare frost-free fridge shelf

Using the bags

Sealing:: Vacuum sealer recommended, per UMAi Dry.
UMAi Dry says:: UMAi: seal with 'either vacuum sealer or immersion sealing method', then rest 'on open wire rack in a regularly used modern frost free kitchen refrigerator located in a room temperature environment for 4-6 weeks'; product pages say 28 to 45 days. Standard bag 12 x 24 in (300 x 600 mm); 'Holds approx. 12-18 lbs. of beef'. Packet includes 5 VacMouse adapter strips and aging-time labels.

Bags go in an ordinary refrigerator, so the fridge sets the temperature. Bags against a cabinet

Specifications

Approx. price: ~$29 (3-bag packet, $29.00 on umaidry.com (the brochure-free 'Age. Eat. Repeat.' restock of the same 3 bags lists at $24))
Type: Dry-aging bags
Bags per pack: 3
Price per bag: ~$9.67 per bag
Largest cut: 18 lb
Vacuum sealer: Vacuum sealer recommended
Ages: beef

Features, per UMAi Dry

3 Standard bags, 12 x 24 in (300 x 600 mm)
Sized for boneless ribeye, striploin or sirloin
Holds about 12-18 lb of beef
5 VacMouse strips for channel-type vacuum sealers
Dry-aging time labels included
Ages 28-45 days in a frost-free fridge

Where the specs put it ahead

No dedicated cabinet; uses a regular frost-free fridge
Bag size matches the most common boneless subprimals
VacMouse strips let a channel-type sealer grip the membrane
Immersion sealing works if you have no vacuum sealer
Membrane blocks fridge odors from the meat and vice versa

What it gives up

One bag per cut, so cost repeats every batch
Needs a frost-free fridge in a room-temperature space
Bone-in cuts need the larger Brisket/Bone-in size

The two lists above are drawn from the maker’s own pages and prices, not from owner reports. Where owner discussion has been read it appears in its own section below, so the two are never mistaken for each other.

What owners say

From what 26 owners described in owner discussions between January 2019 and December 2024. Every UMAi bag uses the same membrane and owners rarely say which size they bought, so these are reports from owners aging whole boneless ribeyes and striploins in UMAi bags, the cuts this size is made for.

A whole ribeye or striploin, an ordinary fridge and no extra equipment is the appeal. Owners have run 32- to 60-day ages in kitchen fridges that get opened all day, and one owner who has sealed both with a machine and by pushing the air out under water found both ages turned out equally well.

Getting the bag closed is the step people struggle with: melted seams, sealers that will not trigger on the membrane, and bags that lift away from the meat in the first week. Once it is sealed, owners say about 80% contact is enough. Expect roughly half the starting weight back as trimmed steak: one owner turned 13 lb of ribeye into about 7 lb, another 14 lb into about 7.5 lb.

Flavor is where opinions split. Several owners got a beefier steak with little of the blue-cheese funk, while one found a 32-day ribeye funkier than expected. One owner who moved to a cabinet names less trim loss as the reason, and one who has aged both ways says a full setup is hard to justify at small volume.

What owners like

Works in the everyday kitchen fridge: owners have aged whole ribeyes and striploins beside normal groceries, in fridges opened several times a day, and been happy with the steaks
A vacuum sealer is optional. Owners who lowered the bagged cut into a bathtub or a bucket of water to push the air out, then closed it with a zip tie, got good results, and one who has done it both ways found no difference
The bag does not need a perfect vacuum: owners who have run several ages say roughly 80% contact between membrane and meat is enough
One owner who has aged beef both in UMAi bags and the traditional open-air way found flavor and texture about the same, and saw no reason for a full setup at small volume
A whole boneless ribeye still gives a lot of steaks: one owner cut ten steaks of a pound or more after 42 days in a kitchen fridge
Cheap enough to repeat: one owner has aged at least 20 cuts this way, from chuck and sirloin to strips and ribeyes

Common complaints

Sealing is where most first attempts go wrong. Owners describe home vacuum sealers melting the bag or a hole into it, a Foodsaver that would not start on the thin membrane, and bags tearing during sealing
The membrane can lift off the meat: one owner resealed a strip loin with backup seals and still had damp, raw-looking patches two weeks later, and another saw the bag pull away from much of a ribeye roast by day five
Less funk than many expect. Owners report a 44-day ribeye that tasted mainly like very beefy steak, little to no funk at 42 days, and almost no taste difference after 36 days; one owner with 20 bag ages thinks traditional aging brings out more of it
More weight goes than in a cabinet, by one owner's account: 14-20% lost on longer bag ages against single digits after moving to a dedicated cabinet. Another owner who has tried both gets less waste from cheesecloth
Long ages get uneven. One owner found results hit or miss past about 55 days and had a 72-day roast come out odd-tasting and dried out; another got too much dried waste above 60 days in a normal fridge
The bag can flatten a boneless ribeye as it ages; one owner's steaks came out shaped more like strips and that owner switched to a wrap with netting

Questions owners ask about the UMAi Dry Dry Aging Bags Ribeye/Striploin

Do I need a vacuum sealer for UMAi bags?

No. Owners push the air out by lowering the bagged cut into a tub or bucket of water and close it with a zip tie, or simply a rubber band, and report good ages. If you do use a sealer, owners warn that it is easy to overheat the membrane and melt a hole in it.

How much of a whole ribeye or striploin is left after aging and trimming?

About half, in owners' numbers. One owner's 13 lb ribeye gave about 7 lb of steaks after 32 days, another's 14 lb ribeye left about 7.5 lb after 36 days, and a 15.6 lb striploin aged 60 days ended at 7.2 lb trimmed.

Will it taste like steakhouse dry-aged beef?

Often milder. Owners describe concentrated, beefy and nutty flavor at around 45 days, and several expected more funk than they got. One owner found a 32-day ribeye funkier than expected, so results vary with the cut and the fridge.

Will it make my fridge smell?

It can. One owner's family asked for a ribeye to come out at day 32 because of the smell in the fridge, though that owner liked the nutty, forest-like aroma. Others ran ages in fridges they opened several times a day and mention no problem.

How long should I age in a UMAi bag?

Owners disagree. One owner who has done 21 to 75 days in the bags found 35 the sweet spot and later ages disappointing, another prefers 45 days to 30, and one who has used them four times got the best results at 60.