Last updated on October 9, 2022.

In my last article, I introduced the topic of packaging and the environmental crisis it has created. I left off with an explanation of greenwashing (read here about how to avoid greenwashed products), and in this article, I’m going to describe two terms that are often misused in advertising.

Remember: the answer to packaging is to reduce our reliance on it; to stop using it.

“Biodegradable” and “Compostable”

If only these words were the solutions to our global packaging problem! Unfortunately, they are two of the most abused terms in greenwashed advertising. Biodegradable refers to any material that decomposes in the environment. Compostable means that the material is organic matter that will break down and turn into soil. These words do not always mean what we think when it comes to sustainable packaging. In fact, if biodegradable and compostable items go into the trash and then a landfill, they do not biodegrade. Nothing in a landfill breaks down. Worse, the contents of landfills release methane gas, a major contributor to global warming.

But misleading marketing makes us believe that biodegradable plastics are better. “According to the Federal Trade Commission’s Green Guides, it is deceptive to market a product as biodegradable if the item does not completely decompose within one year after customary disposal, so items that are customarily disposed of in landfills cannot be marketed as ‘biodegradable in landfills.'”¹ Regardless, the term is often misused.

Biodegradable plastics will only break down under the right conditions, such as in an industrial composting facility, not in a backyard composting system. But commercial composting facilities don’t all accept even certified compostable plastic products because the chemicals in the plastic hurt the final value of the compost.

Industrial Composting Facilities

There are several types of composting systems. A home compost system is mainly food and yard waste that you can set up yourself. Commercial composting refers to a municipal or city composting facility that accepts food and/or yard waste. An industrial composting facility requires precise processing conditions under a controlled biotechnological process. In order to be effective, these conditions include a certain high temperature, moisture level, aeration, pH, and carbon/nitrogen ratio.

Industrial composting facilities are not available in many places. There are about 200 in the US, serving less than 5% of the population. If there is not an industrial composting facility in your area, the only option is to throw compostable plastics in the trash, since they cannot be recycled.

If there is a facility in your area, it still does not guarantee the items will be composted. The reality is that many facilities cannot tell the difference between compostable plastics from regular plastics other than by carefully reading the label on each item. This is not practical with the number of disposables we currently discard, so many items go to the landfill.

Examples

Let’s look at four examples of greenwashed and problematic products.

Wincup polystyrene disposable cups

I saw this single-use disposable coffee cup on the campus where I work. A colleague had purchased coffee at the cafeteria and the images of green leaves and biodegradable claims drew my interest. The company, called WinCup and based out of Stone Mountain, Georgia, claims to be a leading manufacturer of disposable polystyrene products.

First, these cups will not biodegrade unless they are put into biologically active landfills, which are far and few between. On their website, they claim that their “cups biodegrade 92% over 4 years” and “under conditions that simulate a wetter, biologically active landfill.”² What is this type of landfill? My understanding is that it is similar to an industrial composting facility, in the facility adds moisture to assist with breakdown.

Most people toss these cups into the regular trash, which then goes to landfills. This is the case where I work (I have plans to meet with cafeteria management to come up with better solutions for food and drinkware). These cups will not break down in a landfill. Additionally, if these cups end up in the ocean, they will likely not break down and will also leach toxins. When marine life ingests those toxins, they make their way up through the food chain to us.

BASF ecovio line

BASF, a major chemical corporation, claims to “combine economic success with environmental protection and social responsibility.”³ I found some greenwashed marketing on their website about compostable plastic:

BASF used Ecovio film applications to make organic waste bags, fruit and vegetable bags, carrier bags, agricultural films, etc. Their claim is that the product is compostable, but the fine print indicates it is compostable “under the conditions of an industrial composting plant.”⁴

This picture is misleading, as it shows a person putting a bag of compost into a compost bin. This gives the impression that these bags will break down in any compost collection when that is not the case. BASF’s compostable certification is the ASTM D6400, which is specifically for industrial composting facilities.⁵ Those are not available in most municipalities or states. If these products go into a landfill, it makes no environmental impact whatsoever. They also cause the same pollution problems as regular plastic.

World Centric products

This seems like a great company: they are a Certified B company, they donate 25% of their profits, and they participate in carbon offsets. Their products, “Made from plants, not petroleum,” are made from renewable plants. Specifically, the spoons are made from 70% non-GMO corn and 30% talc. While this is technically better for the environment, these are still single-use disposable items that are only compostable in a “commercial composting facility.” The likelihood that these products will make it into a commercial composting facility after their single use is low. If they go to the landfill, they will likely not break down at all. At least this company isn’t using fossil fuels to make its products.

Molded fiber take-out packaging

These “compostable” and “plastic alternative” molded fiber take-out containers seemed like a magnificent alternative to plastic until they were discovered to contain PFOAs (per- and poly-fluoroalkyl substances). These chemicals, protect the fibers from becoming wet and soggy. The same compounds are in most nonstick cookware. They cause cancer, thyroid disease, reproductive problems, and immunotoxicity in children.

Though marketed as compostable, these chemicals do not disappear. They get into the soil from the compost, and potentially into whatever is grown in that soil. Worse, these chemicals make it into the waterways and eventually into our drinking water.

My family ate out of these types of containers multiple times. Of course, I had no idea the time that these contained PFOAs. Many major eateries have stopped using these.

Solution

In general, we must consume less. We must end the production and use of single-use disposable items. Most importantly, being aware of these problems is key because we can all make a difference.

In my next article about packaging, I’ll explain bioplastics, which are often advertised as biodegradable or compostable. Thank you for reading, and please subscribe to get the next post in your inbox!

“If you want to eliminate waste in your life – and in the world – the answers will always come down to one simple thing: consume differently.” -Tom Szaky

Additional Resources:

Article, “The bowls at Chipotle and Sweetgreen are supposed to be compostable. They contain cancer-linked ‘forever chemicals,'” by Joe Fassler, TheCounter.org, August 5, 2019. Read this excellent article for more information on molded fiber food containers.

Article, “The breakdown of biodegradable plastic, broken down,” by Sarah DeWeerdt, Anthropocene Magazine, May 7, 2019.

Article, “Will compostable packaging ever be able to solve our waste problem?” by Adele Peters, fastcompany.com, September 3, 2019.

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