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UNNI Compostable Liner Bags, 13 Gallon, 49.2 Liter, 50 Count, Heavy Duty 0.85 Mil, Tall Kitchen Food Scrap Waste Bags, ASTM D6400, US BPI, CMA and Europe OK Compost Home Certified, San Francisco

4.5 4.5 out of 5 stars 7,864 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Disposable Compost Bags by UNNI
Price:
$18.95 ($0.38 / Count)
$18.00 ($0.36 / Count)
13 Gallon
50 Count (Pack of 1)
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Purchase options and add-ons

Material compostable
Color Green
Brand UNNI
Capacity 13 Gallons
Product Dimensions 6.7"L x 4.5"W x 4.3"H
Shape Rectangular
Item Weight 2.6 Pounds

About this item

  • 13 Gallon / 49.2 Liter capacity; Size: 23.75 in x 31.49 in x 0.9 Mils; 50 Bags Per Roll
  • CERTIFIED COMPOSTABLE IN U.S. & EUROPE: Certified by the Biodegradable Products Institute (BPI) under US standard ASTM D6400. Certified OK Compost Home under European standard EN 13432 by Vinçotte and Tüv Austria. OK Compost Home certification guarantees 100% BIODEGRADABILITY IN HOME COMPOSTING facilities. Compost Manufacturing Alliance (CMA) Approved: CMA verifies the compliance of UNNI compostable products with real-world composting standards through disintegration tests.
  • HIGHEST BIOBASED CONTENT: UNNI Compostable Bags are made from plant starches and contain NO polyethylene. Bags are durable, nontoxic, easy to use and great for the environment.
  • USAGE & STORAGE: Avoid excessive heat; store Compostable Bags in a cool, dry place and use within one year of purchase. Purchase only as many as you can use in 9 months.
  • UNNI compostable bags are the ethical choice for a cleaner environment and an ECO-FRIENDLY future. Thank you taking care of our planet for FUTURE GENERATIONS by replacing plastic with our sustainably manufactured, compostable bags. Together, U ‘n’ I make Earth a better place.
› See more product details

Customer ratings by feature

Easy to use
4.4 4.4
Scent
4.3 4.3
Leak proof
4.2 4.2
Value for money
4.1 4.1
See all reviews

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Frequently bought together

UNNI Compostable Liner Bags, 13 Gallon, 49.2 Liter, 50 Count, Heavy Duty 0.85 Mil, Tall Kitchen Food Scrap Waste Bags, ASTM D
$18.95 ($0.38/Count)
Get it as soon as Thursday, May 2
In Stock
Sold by UNNI and ships from Amazon Fulfillment.
+
UNNI Compostable Liner Bags, 2.6 Gallon, 9.84 Liter, 100 Count, Extra Thick 0.71 Mil, Samll Kitchen Food Scrap Waste Bags, AS
$12.85 ($0.13/Count)
Get it as soon as Thursday, May 2
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Product Description

UNNI 100% Compostable Bags
UNNI TUV OK COMPOST

Denotes certification by TÜV Austria as 100% compostable in backyard and home composting units. OK Compost Home is one of the world’s only home composting certifications.

UNNI BPI
US BPI

  • Denotes certification by the BPI for use in commercial and municipal composting facilities, in compliance with U.S. standard ASTM D6400.

At UNNI, we are passionate about making Earth a better place for everyone.

A sustainable future begins with U 'n' I making smarter choices every day.

When we come together in "Unni-ty" to give future generations a better world, anything is possible!

  • We offer a wide range of 100% compostable products that meet the most stringent standards for biodegradability and environmental friendliness.
  • Our compostable bags are made from plant materials and have received European OK Compost Home certification, so they are 100% compostable even in home composting units
  • These bags have also been awarded US BPI certification under the ASTM #6400 standard, and can be composted in municipal and industrial facilities.

UNNI 100% Compostable Food Scrap Bags

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UNNI 100% Compostable Storage Bags

UNNI 100% Compostable Drawstring Bags

UNNI 100% Compostable Pet Waste Bags

UNNI 100% Compostable Toilet Replacement Bags

UNNI 100% COMPOSTABLE BAGS

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UNNI

UNNI Compostable Liner Bags, 13 Gallon, 49.2 Liter, 50 Count, Heavy Duty 0.85 Mil, Tall Kitchen Food Scrap Waste Bags, ASTM D6400, US BPI, CMA and Europe OK Compost Home Certified, San Francisco

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Customer reviews

4.5 out of 5 stars
4.5 out of 5
7,864 global ratings

Customers say

Customers like the compostable bags for their eco-friendly features. They mention that they are truly biodegradable, and that they can be composted. They also appreciate the quality of the bags, saying that they're excellent and impressive. Customers also appreciate performance. However, some customers have mixed opinions about the durability, value, size, leakage, and thickness.

AI-generated from the text of customer reviews

537 customers mention483 positive54 negative

Customers like the eco friendly of the bags. They mention that they're compostable, biodegradable, and can be composted. Some say that the bags are the best sustainable trash bags out there.

"These are reasonably strong considering they are compostable...." Read more

"...Back to these bags: I love them. They’re home compost ok which means they WILL actually break down properly in the dump rather than breaking down..." Read more

"Please are good, compostable bags, but you need to be careful if you drop liquids into your garbage can. The bottom has dropped out a few times...." Read more

"...These bags keep me from having to wash out the can. Being biodegradable was what I needed." Read more

529 customers mention433 positive96 negative

Customers like the quality of the compost bin bags. They mention that they are excellent, good quality, durable, impressive, and wonderful kitchen liners. They also say that they're an excellent alternative to using plastics that will not break down and are toxic.

"...Would recommend if you want something of good quality but don’t want to overspend." Read more

"...Good trash bags. Weaker than regular plastic, but so far I like them quite a bit. Plus, I like not feeling guilty." Read more

"Please are good, compostable bags, but you need to be careful if you drop liquids into your garbage can. The bottom has dropped out a few times...." Read more

"Very good but curious configuration of the sealed end that just makes the fit awkward. Otherwise, does the job" Read more

192 customers mention185 positive7 negative

Customers are satisfied with the performance of the compost bin. They mention that it works well, deteriorates the least, and produces excellent results. Some say that the tear line works consistently throughout the entire roll.

"...Won’t hold 20 pounds of bricks but does well with edgey things like a scoop free litter tray. I use them in my 8 gallon trash & it works great...." Read more

"I've been using these bags for 3 years now and they work pretty well inside of a tall bin...." Read more

"...Of the options I’ve seen, I think this is the most reliable and best performing, so if you’re trying to cut down on waste and live with a societal/..." Read more

"...These little bags work great. No complaints. They hold the food scraps just fine...." Read more

1,130 customers mention592 positive538 negative

Customers have mixed opinions about the durability of the compost bin. Some mention that it's durable if you don't fill the bag too much, and the bottom seam does not come apart. However, others say that it may begin to break down after too many days, and that it rips too easily.

"These are reasonably strong considering they are compostable...." Read more

"...Not as sturdy as regular trash bags but that's to be expected for compostable bags." Read more

"...Of the options I’ve seen, I think this is the most reliable and best performing, so if you’re trying to cut down on waste and live with a societal/..." Read more

"...They do rip easier, so I have to be more careful about over-stuffing it with pointier things, and when I tug it out of the trash can, but it's..." Read more

288 customers mention143 positive145 negative

Customers have mixed opinions about the value of the compost bags. Some find them worth the price, while others say they're disappointed to waste the money. Some say the bags are cheap and easy to rip, while other say they are more expensive than a traditional trash bag.

"...I'm very happy with the quality, and the price was right...." Read more

"...we'll get a bad batch where whole 1 or 2 boxes in the set are completely unusable and tear at the slightest pressure before even storing any trash...." Read more

"...while there was nothing wrong with that -- They're very strong and very cheap -- I have become aware of the steep price we are all paying for these..." Read more

"...Awesome idea, but if the bag falls apart, it's functionally useless." Read more

254 customers mention143 positive111 negative

Customers are mixed about the size of the compost bin. Some mention that it's the right size for their trash can, while others say that it’s too small to fit in a standard 13 gallon trash can. They say the bags are a bit smaller than the traditional bags they have used and that they don’t fit super snug up top.

"I didn’t expect them to be as strong as they are. They can really hold some weight...." Read more

"Very good but curious configuration of the sealed end that just makes the fit awkward. Otherwise, does the job" Read more

"...bags have a slightly larger opening so it was not an issue...They fit good...." Read more

"...our compost bin just fine size-wise, but unfortunately the bag is not quite tall enought to create a "cuff" around the top...." Read more

166 customers mention67 positive99 negative

Customers are mixed about the leakage of the compost bin. Some mention that they have not leaked and are fine, while others say that they quite often leak.

"...make sure to change your garbage bag frequently or else the bag would start to leak." Read more

"...They’re strong, don’t leak, fit my trash can, don’t break down, and don’t make me wince every time I take out the trash and imagine it sitting in..." Read more

"...The sides of the indoor bin get wet as the liquid permeates out of the bag." Read more

"...We have used almost the whole box and, so far, have had no spills or tears...." Read more

151 customers mention60 positive91 negative

Customers are mixed about the thickness of the compost bin liners. Some mention that they are thicker than expected, which increases durability, while others say that they're thin and easy to poke holes in. That much organic material gets very heavy, and the bins are too heavy.

"...volume most family kitchen waste bins actually need, the material is honestly still thin, likely a cost saving requirement on the company’s end...." Read more

"They seem thick and durable if you don't fill the bag too much...." Read more

"...I love the idea of compostable bags, but these are always quite thin and rip too easily. We only use these for things that go in the landfill...." Read more

"...Because they are biodegradable, they are thinner and less resistant to liquids and acidic rubbish than your standard plastic trash bags...." Read more

No Melting
4 Stars
No Melting
So far, they haven't melted in the trash can while full of stuff, even moist things like fruit peels for several days.They do rip easier, so I have to be more careful about over-stuffing it with pointier things, and when I tug it out of the trash can, but it's alright.Have used them with heavy things like dirt, and it did not rip. It's just easier to cut/shred the bag.Bags need to be used with a trash can with a thing that keeps it in place. See picture.They come out of the box easily, and tear on the perforated line easily too.Good trash bags. Weaker than regular plastic, but so far I like them quite a bit. Plus, I like not feeling guilty.
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Top reviews from the United States

Mitchell
5.0 out of 5 stars Pretty strong, great price
Reviewed in the United States on April 3, 2024
Style: 13 GallonSize: 50 Count (Pack of 1)Verified Purchase
I didn’t expect them to be as strong as they are. They can really hold some weight. Won’t hold 20 pounds of bricks but does well with edgey things like a scoop free litter tray. I use them in my 8 gallon trash & it works great. Would recommend if you want something of good quality but don’t want to overspend.
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mimi
5.0 out of 5 stars Great for dry items, may leak liquid
Reviewed in the United States on April 22, 2024
Style: 13 GallonSize: 50 Count (Pack of 1)Verified Purchase
I've been using these bags for 3 years now and they work pretty well inside of a tall bin. Not as sturdy as regular trash bags but that's to be expected for compostable bags.
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T
5.0 out of 5 stars I really like these 13 gallon bags
Reviewed in the United States on June 5, 2023
Style: 13 GallonSize: 50 Count (Pack of 1)Verified Purchase
These are reasonably strong considering they are compostable. In the past, I used the standard 13 gallon Kirkland bags sold at Costco for my Rubbermaid garbage can. The plastic 13 gallon Kirkland bags were pretty snug around the opening and i sometimes had to stretch them a little. I was concerned because apparently the compostable bags do not stretch well compared to the standard plastic bags. However, the Unni compostable bags have a slightly larger opening so it was not an issue...They fit good. The one thing that I would recommend is that you purchase a garbage can with a liner lock or retaining band to hold the Unni bags in place. This is because the Unni compostable bags do not have a draw string and will often slide down. If you've already purchased a can without a liner lock or retaining band, then a clothes line clip or hair clip will usually work.
7 people found this helpful
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N
4.0 out of 5 stars No Melting
Reviewed in the United States on November 28, 2023
Style: 13 GallonSize: 50 Count (Pack of 1)Verified Purchase
So far, they haven't melted in the trash can while full of stuff, even moist things like fruit peels for several days.
They do rip easier, so I have to be more careful about over-stuffing it with pointier things, and when I tug it out of the trash can, but it's alright.
Have used them with heavy things like dirt, and it did not rip. It's just easier to cut/shred the bag.
Bags need to be used with a trash can with a thing that keeps it in place. See picture.
They come out of the box easily, and tear on the perforated line easily too.
Good trash bags. Weaker than regular plastic, but so far I like them quite a bit. Plus, I like not feeling guilty.
Customer image
N
4.0 out of 5 stars No Melting
Reviewed in the United States on November 28, 2023
So far, they haven't melted in the trash can while full of stuff, even moist things like fruit peels for several days.
They do rip easier, so I have to be more careful about over-stuffing it with pointier things, and when I tug it out of the trash can, but it's alright.
Have used them with heavy things like dirt, and it did not rip. It's just easier to cut/shred the bag.
Bags need to be used with a trash can with a thing that keeps it in place. See picture.
They come out of the box easily, and tear on the perforated line easily too.
Good trash bags. Weaker than regular plastic, but so far I like them quite a bit. Plus, I like not feeling guilty.
Images in this review
Customer image
Customer image
4 people found this helpful
Helpful
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Cass
5.0 out of 5 stars Get ‘em. Do better.
Reviewed in the United States on July 17, 2023
Style: 13 GallonSize: 50 Count (Pack of 1)Verified Purchase
After diving head-first into the testy waters that are “eco-friendly trash bags”, hours behind a bright screen reading about “biodegradable vs compostable” and “composting conditions”, I contentedly settled on these bags.
***NOTE: Many items that claim to be “eco-friendly” are full of s***. Don’t be lazy and rely on product titles and claims, meant only to bring in more money, find the facts.***
Back to these bags: I love them. They’re home compost ok which means they WILL actually break down properly in the dump rather than breaking down into harmful components or needing specific conditions to properly decompose (conditions needed for most compostable products to return to the earth—CONDITIONS THE DUMP WILL NOT MEET). They’re strong, don’t leak, fit my trash can, don’t break down, and don’t make me wince every time I take out the trash and imagine it sitting in the nearest dump for years to come… I produce very little trash since I try to be conscious of materials/contents when purchasing, reuse, recycle, and compost as much as I can. Therefore, my trash bags sit in my kitchen bin for a hot minute before they’re full enough to be taken out (I really ought to buy a smaller can, but don’t want to spend unnecessary money or get rid of one that’s perfectly fine). I haven’t had any problems with stink, breakdown, ripping, or capacity. Plus, my heart is a little lighter knowing I’m making one more transition for the better. Join me in doing better.
21 people found this helpful
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Oatmeal
5.0 out of 5 stars Works great
Reviewed in the United States on April 15, 2024
Style: 13 GallonSize: 50 Count (Pack of 1)Verified Purchase
Been using these for a while now and I got no complaints. It does degrade after few days so make sure to change your garbage bag frequently or else the bag would start to leak.
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DefinitelyNotARobot
5.0 out of 5 stars Not perfect but the best of the ones I’ve tried.
Reviewed in the United States on February 24, 2024
Style: 13 GallonSize: 50 Count (Pack of 1)Verified Purchase
8.5/10 (best compostable trash bag I’ve tried so far). I recommend this over other compostable brands.

Far better capacity/matches stated volume and is thicker than other similar brands. Points down for thinness of material. Though it’s thicker and matches the volume most family kitchen waste bins actually need, the material is honestly still thin, likely a cost saving requirement on the company’s end. I wouldn’t trust this material to hold weight or max out the capacity or expect any stretch for sure. But that’s par for the course I’m finding out in newable plastics. Of the options I’ve seen, I think this is the most reliable and best performing, so if you’re trying to cut down on waste and live with a societal/environmental/multigenerational perspective, I would recommend this product.
2 people found this helpful
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Amanda
3.0 out of 5 stars Good but damaged
Reviewed in the United States on March 4, 2023
Style: 13 GallonSize: 50 Count (Pack of 1)Verified Purchase
Please are good, compostable bags, but you need to be careful if you drop liquids into your garbage can. The bottom has dropped out a few times. However, halfway through the box, I pulled out two bags in a row and they were shredded. There may be a problem with their packaging process. The other bags are fine so far I haven’t gotten more than halfway through the box though, so I don’t know how many more will be damaged.
Customer image
Amanda
3.0 out of 5 stars Good but damaged
Reviewed in the United States on March 4, 2023
Please are good, compostable bags, but you need to be careful if you drop liquids into your garbage can. The bottom has dropped out a few times. However, halfway through the box, I pulled out two bags in a row and they were shredded. There may be a problem with their packaging process. The other bags are fine so far I haven’t gotten more than halfway through the box though, so I don’t know how many more will be damaged.
Images in this review
Customer image Customer image Customer image
Customer imageCustomer imageCustomer image
4 people found this helpful
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Top reviews from other countries

Bryan D
5.0 out of 5 stars Better than Glad Compost Bags
Reviewed in Canada on February 2, 2019
Style: 13 GallonSize: 50 Count (Pack of 1)Verified Purchase
I switched from Glad Compost bags because I had to keep double bagging them. These Unni compost bags are much more durable, cost less and work perfectly fine. Glad I made the switch.
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Ann L MacDonald
5.0 out of 5 stars Eco Friendly
Reviewed in Canada on June 25, 2021
Style: 13 GallonSize: 50 Count (Pack of 1)Verified Purchase
The bags themselves are really large (that’s good) so that more compostable items can fit in them. The packaging wasn’t the sturdiest…the box was broken and a few of the bags were no longer on the roll. No bag was damaged, but the packaging was.
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Lilly
5.0 out of 5 stars Good Quality Bag
Reviewed in Canada on May 1, 2019
Style: 13 GallonSize: 50 Count (Pack of 1)Verified Purchase
I recently bought these bags for food wastes, durable, sturdy and no issue at all, better than other brands I tried in the past. Will buy again when runs out.
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Linda Hudson
4.0 out of 5 stars Does what you need it to do
Reviewed in Canada on March 16, 2022
Style: 13 GallonSize: 50 Count (Pack of 1)Verified Purchase
Good product.
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dmmk
5.0 out of 5 stars compostable
Reviewed in Canada on February 28, 2019
Style: 13 GallonSize: 50 Count (Pack of 1)Verified Purchase
convinient to have large quantity. Strong enough to hold kitty litter. Compostability is an important feature from eco perspective.
One person found this helpful
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