5 Best Biodegradable Garbage Bags (2021) – EcoWatch

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As consumers become more aware of issues like ocean plastics and overflowing landfills, many are looking for ways to cut down on their environmental footprints. An easy way to make your home more sustainable is to switch from heavy-duty plastic trash can liners to biodegradable garbage bags. While they aren’t a perfect solution, they have a few key advantages over their traditional counterparts.
Whether you’re looking for tall kitchen trash bags or a smaller option to line your countertop compost bin, in this article, we’ll review five of the best biodegradable garbage bags on the market today.
Each product featured here has been independently selected by the writer. Learn more about our review methodology here. If you make a purchase using the links included, we may earn a commission.
According to the Center for Biological Diversity, a plastic bag takes 1,000 years to degrade in a landfill. And when bags do decompose, they can leach toxins and microplastics into the environment. It’s difficult to completely abandon plastic, but we can take simple steps toward reducing our environmental footprints by switching to products such as biodegradable garbage bags.
Although compostable and biodegradable plastics take longer to break down in a landfill than they would in an open environment, they can still be more eco-friendly than using traditional plastic bags. Below are some reasons you may consider replacing your plastic trash bags with more eco-friendly alternatives:
There are also some downsides to bioplastics. For example, they require more land, water and pesticides to grow the crops that are turned into the bioplastics. They can also be much more expensive and can release methane if not exposed to enough oxygen during the decomposition process. However, most modern landfills in the U.S. are air-locked to prevent these and other harmful gasses from entering the atmosphere.
Considering both sides of the coin, is it worth switching to biodegradable garbage bags? According to Kartik Chandran, a professor in the Earth and Environmental Engineering Department at Columbia University, compared to traditional plastics, “bioplastics are a significant improvement.” But the choice is ultimately up to you.
Of course, the most sustainable option would be to produce less waste in the first place, tossing your garbage in a bin without a liner and washing the bin after you dump your loose trash. Composting food scraps is another way to reduce your landfill contribution whether you’re in a house or an apartment.
If you decide to purchase biodegradable trash bags, it’s important to note that not all biodegradable trash bags actually break down within a reasonable amount of time. Depending on its material, the claim that a bag is biodegradable can be little more than greenwashing.
In order to provide you with sustainable recommendations, when choosing the top biodegradable garbage bags, we looked at factors including:
UNNI garbage bags are our best overall choice because they are 100% biodegradable and compostable. The eco-friendly bags are also certified by the Biodegradable Products Institute and OK Compost Home and are BPA-free. They are made entirely from corn starch and other plant starches and contain no polyethylene. Within 180 days, the bags will degrade into organic compounds such as CO2 and O2. The brand also makes drawstring waste bags and small trash bags for home composting and pet waste.
Customer Rating: 4.5 out of 5 stars with over 4,400 Amazon ratings
Why Buy: These compostable trash bags come in plenty of sizes and styles, so whether you need to dispose of dog poop or food scraps, you can find an eco-friendly bag from UNNI.
Trusted for over 30 years, the bright green Reli. biodegradable garbage bags are designed for ease of use and durability. They have a star-sealed bottom to prevent breakage and are made with a high-density blend of plant-based materials and EPI chemical additives. The company sells compostable bags as well for those who have access to a composting facility, and the 13-gallon bags come in a compact cardboard box that can be recycled.
Customer Rating: 4.4 out of 5 stars with over 250 Amazon ratings
Why Buy: These biodegradable trash bags are eco-certified to ASTM D6954 standards and include EPI additives to ensure a faster degradation process. You can also lower your carbon footprint even more by buying in bulk and purchasing an 800-count package for $50.
BioBag Compostable Countertop Food Scrap Bags are made up of a bioplastic resin blend called Mater-Bi®, which uses non-genetically modified plant-based substances like corn starch and a variety of biodegradable/compostable polymers. BioBags has made a commitment to use as many renewable resources in its products, and its bags are manufactured in the U.S. with resin sourced from Italy. They are stored in a small cardboard package that can be recycled after use.
Customer Rating: 4.7 out of 5 stars with over 3,200 Amazon ratings
Why Buy: These small bags are extremely versatile and can be used for small waste needs all around the home. BioBag’s products are certified compostable and biodegradable according to European standard EN 13432, U.S. standards ASTM D6400 and OK Compost Home, and Australian standard AS 4736.
Hippo Sak tall kitchen bags are made in the USA from at least 88% plant-based materials such as sugarcane rather than fossil fuels. These white trash bags are extremely durable with a slightly thicker layer on the bottom to prevent breakage. The kitchen bags also have large handles that make them easy to grip, pick up and replace without the fear of tearing. They are packaged in a small cardboard box with a large tab that makes it easy to pull individual bags out.
Customer Rating: 4.9 out of 5 stars with over 5,700 Amazon ratings
The STOUT by Envision EcoSafe Compostable Bags are specifically designed for collecting organic waste. Even though the average decomposition rate for biodegradable and compostable bags can range from six months to a year in an open environment, STOUT bags are said to decompose in 10 to 45 days and biodegrade in a maximum of six months in commercial composting facilities. Much like the other brands, these garbage bags come in compact cardboard packaging for easy recycling. A star seal on the bottom of the bag makes it possible to carry more weight without leaking or ripping.
Customer Rating: 4.7 out of 5 stars with over 500 Amazon ratings
Why Buy: These fast-decomposing bags are made in the U.S. by blind or visually impaired citizens. They’re also USCC and BPI certified and meet the requirements of ASTM D6400.
Which garbage bags are biodegradable?
Garbage bags made from bioplastics or other plant-based starches and materials are considered biodegradable. Bioplastics are a mixture of organic materials that mimic the properties of traditional petroleum-based plastics. Some bioplastics include additives to speed up the deterioration process. Some bioplastics are so complex that they aren’t considered biodegradable anymore. This is why it is important to make sure your products are not only composed of plant material, but are also certified biodegradable.
Are biodegradable bags better than plastic?
Biodegradable garbage bags produce fewer greenhouse gas emissions than traditional plastic bags. However, it takes more land, water and pesticides to grow the plant materials the bags are made from. Overall, researchers have stated that biodegradable bags are better, but they don’t break down significantly faster in landfills.
How long do biodegradable bags take to decompose?
The range for the decomposition of biodegradable bags is different for each brand. Some state that it only takes 180 days for decomposition, while for others it may be up to a year and a half. It also depends on the environment the bag is in — in a commercial composting facility or at home in an open environment, decomposition will be significantly faster than in an air-locked landfill. Generally, no matter the time it takes for biodegradable garbage bags to decompose, it takes traditional garbage bags longer.


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