• 9 Best Compostable Trash Bags in 2021 (BioBag, Green Earth, and More) 1
  • 9 Best Compostable Trash Bags in 2021 (BioBag, Green Earth, and More) 2
  • 9 Best Compostable Trash Bags in 2021 (BioBag, Green Earth, and More) 3
  • 9 Best Compostable Trash Bags in 2021 (BioBag, Green Earth, and More) 4
  • 9 Best Compostable Trash Bags in 2021 (BioBag, Green Earth, and More) 5

9 Best Compostable Trash Bags in 2021 (BioBag, Green Earth, and More)

The health of the environment is more important now than ever, and alternatives to plastic are popping up everywhere. A great step to take towards minimal waste living is to make your waste itself more eco-friendly. One way to do this is by switching out your plastic trash bags for compostable ones. These bags are made out of materials that will break down and leave less of a footprint on the environment. 

We've done the research on compostable trash bags and what real people who use them had to say about each product. Based on this information, we've curated a list of the nine best compostable trash bags this year. Our favourite is Bag to Nature's Compostable Kitchen Bags! Read to the end to check out our tip about how to stop your garbage from smelling, as well.

Experts featured in this article

Erica Baron
  • Last updated: 06-07-2021
  • 48,819 views
Table of Contents

Best 3 Compostable Trash Bags

Here are our best three picks for compostable trash bags. These products were carefully selected based on their material, thickness, compostability, and more. Read on for why we liked these great trash bags, as well as for a list of runners-up that can be great for more specific situations. 

1

Biobag Compostable Countertop Food Scrap Bags

100 count

$18.75

Capacity3 gal.
MaterialsPlant starches, plant oils, compostable polymers
Thickness0.64 mils
BPI-certifiedYes
Has handles or drawstringsNo
2

Unni100% Compostable Food Scrap Bags

100 count

$12.95

Capacity2.6 gal.
MaterialsPlant starch
Thickness0.71 mils
BPI-certifiedYes
Has handles or drawstringsNo
3

Stout by Envision Eco-Safe ~6400 Compostable Bags

48 count

$32.30

Capacity30 gal.
MaterialsNot provided
Thickness1.1 mils
BPI-certifiedYes
Has handles or drawstringsNo

Compare the Best 3 Compostable Trash Bags

Image
1
Biobag  Compostable Countertop Food Scrap Bags 1

Biobag

2
Unni 100% Compostable Food Scrap Bags 1

Unni

3
Stout by Envision  Eco-Safe ~6400 Compostable Bags 1

Stout by Envision

Name

Compostable Countertop Food Scrap Bags

100% Compostable Food Scrap Bags

Eco-Safe ~6400 Compostable Bags

Features

Our Top Choice - Roomy and Well-Made Compostable Trash Bags

Best for Large Compost Piles and Quick Decomposition

Best Plus-Sized Compostable Trash Bag

Price$18.75$12.95$32.30
Capacity3 gal.2.6 gal.30 gal.
MaterialsPlant starches, plant oils, compostable polymersPlant starchNot provided
Thickness0.64 mils0.71 mils1.1 mils
BPI-certifiedYesYesYes
Has handles or drawstringsNoNoNo
Link

More Great Compostable Trash Bags to Consider

While our best three picks are great all around, there are plenty of useful bags that we would still like to recommend. Here are some runners-up that didn't quite make our top cut, but still have some situation-specific benefits that we think make them fantastic products.  

JTSC Products Compostable 100% Biodegradable Trash Bags

100 count

$38.99

Capacity13 gal.
MaterialsPlant starch
Thickness1.0 mil
BPI-certifiedNo
Has handles or drawstringsNo

Green Earth Compostable Tall Kitchen Bags

50 count, pack of 2

$30.95

Capacity13 gal.
MaterialsPlant starches
Thickness0.9 mils
BPI-certifiedYes
Has handles or drawstringsNo

Bag to Nature Jumbo Kitchen Bags

50 count

$29.20

Capacity13 gal.
MaterialsCompostable polymers
Thickness1.0 mil
BPI-certifiedYes
Has handles or drawstringsNo

Second Nature Bags Help the Earth Compostable Trash Bags

100 count, 3 gallon

$15.95

Capacity3-13 gal.
MaterialsSugar cane, plant starches, vegetable oils
ThicknessNot provided
BPI-certifiedYes
Has handles or drawstringsNo

PrimodeCertified Compostable Waste Bags

30 count

$15.95

Capacity13 gal.
MaterialsCorn starch
Thickness0.87 mils
BPI-certifiedYes
Has handles or drawstringsNo

Repurpose CompostablesCompostable Small Bin Bags

25 count

$7.99

Capacity3 gal.
MaterialsPlant-based materials
ThicknessNot provided
BPI-certifiedYes
Has handles or drawstringsNo

How to Choose a Compostable Trash Bag – Buying Guide

With so many compostable trash bags on the market, it may be hard to choose the best one for your needs. We've compiled a buying guide of tips and things to consider when buying a compostable trash bag. Read on below for more!

Be Sure it's Compostable, not Biodegradable

Biodegradable and compostable might sound the same, but the difference lies in official certifications, which may matter to you or your community.

Biodegradable Bags Will Break Down but Won't Disappear

Biodegradable Bags Will Break Down but Won't Disappear
Biodegradable trash bags are made of plastic formulated with microorganisms or chemicals that will break them down into smaller pieces. 

Depending on what makes up your biodegradable trash bag, those smaller pieces can become truly tiny and will decompose under the right circumstances.  These types of trash bags are known to break down faster than compostable trash bags might, and can often be a more cost-effective option. 


Unfortunately, the decomposition process for biodegradable trash bags requires light and oxygen, two things they won’t have under a pile of trash in a landfill. It's highly likely that your biodegradable trash bag won't completely break down, and it's also a lot harder to recycle the special plastic that they're made from. 

Compostable Bags Break Down Quickly and are Best if Potato-Based

Compostable Bags Break Down Quickly and are Best if Potato-Based
Unlike biodegradable bags, compostable bags are guaranteed to fully decompose into soil. Keep an eye out specifically for those that are BPI-certified. This means they meet the standards of the Biodegradable Products Institute. Not only are these bags proven to break down, but your city composter will also be sure to accept them.

Don't forget that because these bags are compostable, they’re going to start breaking down pretty quickly if you have any wet, organic matter in them. You’ll need to change your bag fairly often or try to keep food scraps in a separate container.

Either way, if you don't mind trash bags that are a little more fragile, you'll be able to manage your waste knowing that it will leave no footprint behind. Compostable trash bags don't need any chemicals or organisms to begin the decomposing process, so when they break down, it's a fully natural and eco-friendly process. 

For Larger Loads, Choose a Thicker Trash Bag

For Larger Loads, Choose a Thicker Trash Bag

If you're going to be throwing away larger amounts of waste, it might be a good idea to check the thickness of your compostable or biodegradable trash bag before you buy it. 

Compostable bags are known to be a little easier to break than biodegradable bags, so if you're looking to carry a lot of trash, you may want to invest in biodegradable bags.

 

Trash bag thickness is often measured in mils, with one mil being about one-thousandth of an inch. Standard trash bags average between 0.7 to two mils thick. In the case of biodegradable or compostable trash bags, you'll want at least one mil of plastic. If you have that much, you should be able to carry larger loads of trash without worry that your trash bag will break. 

Remember That Drawstrings and Handles Aren't Normally Included

Remember That Drawstrings and Handles Aren't Normally Included
Compostable trash bags rarely have ties or handles in the way that many traditional trash bags do. Handles and drawstrings are normally made with heftier, more reinforced plastic than the bag itself, so it’s harder for manufacturers to produce these in the same eco-friendly style.

That said, it's good to be aware that unless the box explicitly states that the bags do have drawstrings, you’ll likely be left to tie the corners together on your own. So long as you don't wait until the bag is full to the bursting, however, this shouldn't be too much of a problem. 

How to Keep Your Garbage Bag from Smelling Like Garbage

How to Keep Your Garbage Bag from Smelling Like Garbage
If you’re getting a compostable bag, you might have to give up some fancy features of regular trash bags like odor elimination. However, you can add it back in using the following tips and tricks.
Add an odor absorber like baking soda, cat litter, or even dryer sheets to your trash can before putting the bag in. 

You can also mask the smell of waste with citrus peels or a few drops of essential oil. Just be sure to rid these additives of any excess moisture when possible. Finally, cleaning your trash can regularly helps to reduce the smell of trash. With these three steps, you should be able to keep your home odor-free. 

Looking to Greenify Your Cleaning Routine?

Looking to Greenify Your Cleaning Routine?

Are you ready to make a change by throwing out the familiar chemicals and perfumes to help the planet? We've got some more handy and eco-friendly recommendations for you to explore. 

Amazon's Bestselling Compost Bags

Summary

When swapping your plastic trash bags out for compostable ones, it's important to ensure that they're compostable, not biodegradable. You may also want to consider how thick the bags are and how you'll control the odor in your trash can. We hope that our list and buying guide have been useful. Check out our website for more 10 Best recommendations!

Author: Jacqueline Oshiro

Compostable Goods That Our Experts Love

If you're composting trash bags, you'll need to make sure the trash is compostable too. These wraps recommended by one of our experts, Erica Baron, are the all-natural, non-plastic solution that's eco-friendly even as waste!

Expert's
pick

Bee’s WrapBeeswax Food Wraps

3 pieces

$18.00

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