Single-use plastic bans are showing up across the nation. But compostable plates and forks may not solve the plastic crisis.
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Single-use plastic bans are showing up across the nation. But compostable plates and forks may not solve the plastic crisis.
January 14, 2020
On January 1, Berkeley, California rang in the New Year by putting a new rule in place requiring all cafés and restaurants to start charging 25 cents for disposable cups. The cups, in addition to lids, utensils, straws, and clamshells, must also now be certified compostable. This summer, eateries that offer on-site dining will also be required to serve customers using reusable plates, cups, and cutlery.
Berkeley’s ordinance—one of the strongest in the country—seeks to do away with single-use plastics. And it’s one of a slew of new laws that aim to do so. Towns, states, even entire countries, have been moving to ban everything from plastic checkout bags and plastic straws, to plastic food containers and take-away serviceware.
Many municipalities are also requiring restaurants and coffee shops to switch to plant-based compostables for takeout meals. They’re joining several other cities, including San Francisco and Seattle, which pioneered such requirements years ago. Even in areas where they aren’t the law, so-called bio-plastics are a booming business, and some food and beverage companies and restaurants have voluntarily made the switch as part of their sustainability plans.
While many have pinned their hopes on these alternatives, some researchers and recyclers caution that an over-reliance on compostable tableware and packaging may not be the solution it’s cracked up to be. In life cycle assessments, it turns out, compostables don’t necessarily outshine plastics when it comes to environmental benefits. And an increase in compostables in the waste stream could, in fact, bungle up the composting process, create more trash, and continue consumers’ addiction to single-use items, detracting from the most environmentally beneficial practices: reducing and reusing.
“It’s nice to be able to make people feel good about throwing something away, but we’re really not changing their behavior or patterns,” said Jack Hoeck, vice president of environmental services at Rexius, a Eugene-based recycling plant that no longer accepts compostable products. “From a climate change perspective, it would be better to reduce the amount we’re generating.”
Recent years have marked a rise in awareness about the detrimental impacts of plastic pollution. Plastic clogs up waterways, floats along the surface of the ocean, kills marine life and wildlife, and is even found in human tissue. New research has also shown that plastic, when exposed to solar radiation, releases methane (a potent greenhouse gas) and ethylene, especially as it degrades.
Seventy-nine percent of the world’s plastic is not recycled. In 2018, the 9 percent that is recycled plastic was threatened, as China banned the import of most plastics and other materials that it used to accept for recycling due to trash contamination issues. Most of that previously recycled plastic is now being landfilled or incinerated.
The recycling quandary has led to an even more urgent search for solutions; thus the turn to bio-plastics. Compostable food serviceware—made from plants such as corn, sugarcane, and bamboo—is also sometimes called “biodegradable,” but that’s a misnomer. It doesn’t decompose in backyard compost bins and needs to be processed at industrial facilities. Currently, only a few hundred of the roughly 4,000 composting facilities in the U.S. have the ability to accept food scraps and a much smaller subset can accept bio-plastics.
The compostable product industry’s call to action is based on the idea that using compostable plates, cups, cutlery and packaging will also cause consumers to compost more food and mitigate the climate impact of the million tons of food scraps and food-soiled paper that are landfilled every year. It also helps to dispose the mass of throwaway items Americans generate in a kinder, gentler way. Early adopters, such as the city of Seattle, which requires all food service businesses to use compostable or recyclable packaging and serviceware, say the model works.
“We have a lot to be happy about; we have diverted thousands of tons of food waste because of this program,” said Pat Kaufman, commercial recycling and composting program manager at Seattle Public Utilities. “We’ve encouraged people to move away from a dead-end product model into a circular model where these materials can break down and go back to feeding soils.”
But not everyone is happy with the increased reliance on compostable serviceware, and some municipalities, and facilities like Rexius, have backed away from accepting them all together. In a report released in October, Greenpeace USA warned consumers to be skeptical of solutions that produce more single-use items and put undue pressure on environmental resources.
“To solve the plastic pollution crisis, companies need to rethink how products are delivered to consumers and invest significantly in reusable and refillable delivery systems,” said Greenpeace.
Last year, all of the compost manufacturing facilities that serve Oregon signed a letter stating they won’t accept compostable products. “These materials compromise our programs and limit many of the environmental benefits of successful composting,” read the letter.
The main problem is contamination, as consumers often throw in non-compostable look-alike items into their bins. Removing this trash increases the use of water, energy, and other resources and drives up operating costs, said Hoeck with Rexius, one of the signatories of the letter.
Photo by Brian Yurasits on Unsplash
When Rexius first began accepting compostables 10 years ago, it only took products that were food related, third-party certified, and clearly identifiable as compostable from 10 feet away (branded, marked, or color coded). Despite these rules, and a robust training and information campaign, constant contamination made sorting a nightmare, Hoeck said. “It’s not practical to pick out 500 little sticks … or to sort out 50 plastic cups mixed in with 100 identical compostable cups,” he said.
Unfortunately, the compost couldn’t be sold to organic farmers because the National Organic Program considers compostable plates, cups, cutlery, and plastic bags as synthetic materials that cannot be used in compost for organic production.
The company was also concerned, he said, that some compostable packaging designed to hold up to wet or and greasy food contains highly toxic “forever chemicals” called PFAS, which can transfer into finished compost and contaminate soil and waterways.
“If the compost is contaminated and people don’t want it or are unhappy with it, it’s not a good business idea,” said Hoeck.
The companies producing compostable products concede that “a small amount of conventional plastic… is commingled and impossible to sort or screen out,” said Rhodes Yepsen, executive director of the Biodegradable Products Institute (BPI), which certifies compostables. But that problem can be solved, he said. And starting this month, BPI will no longer certify any product that contains high levels of fluorine, a highly reactive element that combines with carbon to make PFAS.
“We have been openly working with composters, municipalities, and states on these topics for years. Just because something is challenging, or costs more, doesn’t mean it isn’t worthwhile,” added Yepsen. Following the BPI standard can help avoid false compostable and biodegradable claims and further compost contamination, he added. But they are only part of the solution.
BPI supports Washington state’s new legislation, which goes into effect this summer and requires better labeling of compostable products while banning the deceptive labeling of plastics. At a hearing for the bill, representatives of Cedar Grove, one of the big composting companies that serve Seattle, testified that it spends over $5 million a year removing plastic bags, forks, and spoons from its compost.
Even if contamination weren’t such a big issue, other important questions about the value of composting have emerged in recent years.
“What’s missing from that discussion is the impact of making these compostable items,” says David Allaway, senior policy analyst at the Oregon Department of Environmental Quality (DEQ). “The fact that something is compostable is a useless predictor of environmental impact.”
Indeed, a 2018 analysis by the Oregon DEQ showed that “compostability is a poor indicator for determining the environmental benefits and burdens of packaging and food serviceware items” and that compostables introduces a set of trade-offs. Instead of just looking at the final result—does it generate waste?—the study used a complete life-cycle analysis, which evaluates the raw materials used, the manufacturing process, the transportation system, and what happens to the waste.
In the case of compostables, the Oregon DEQ reviewed 18 years of life-cycle assessments, including over 1,200 comparisons involving compostable packaging and over 360 comparisons for food serviceware. In most of these comparisons, the production and use of compostable materials (and composting them) was found to result in higher environmental impacts than that of either non-compostable materials, or compostable materials treated via recycling, landfilling, or incineration.
While many people focus on the impacts of disposal, the environmental impacts of producing materials generally can be 10, 50, or 100 times higher than the impacts of disposal, depending on the source materials, packaging, and production process, Allaway said. He added that some compostable items are low-impact while others high impact, but the industry does not provide detailed information on the particulars so consumers can make a choice.
“It’s a little bit of a red herring,” he said. “Taking something and putting it in the landfill feels bad, but most of the damage has already been done by the time you buy it.”
And while food waste produces rich compost that restores soil fertility and helps store soil carbon, some compostable packaging doesn’t produce much compost at all. When it degrades in a composting facility, corn-based PLA—polyactic acid—just turns into carbon dioxide and water. Essentially, Allaway said, it disappears.
It’s also important to note that reliance on compostables doesn’t necessarily lead to more food waste being composted either, Allaway said. In food courts, baseball stadiums, and fast food restaurants, composting bins tend to overflow with plates and tableware, but people eat most of the food they buy when eating out. Most food waste occurs at home, he said, and in restaurant kitchens. So when Allaway hears fast food companies touting compostables as part of their sustainability plan, he mainly sees a marketing gimmick.
“The producers of single use service items have pinned their hopes on composting and the idea of zero waste as a way to justify the continued existence of [those] service items,” Allaway said.
Yepsen with the BPI disagrees. “We clearly need to generate less waste, whether that’s packaging or food waste,” he said. “But let’s not pretend that waste is going away overnight, we still need curbside collection for materials, to find beneficial pathways to get waste recovered.” Promoting compostables isn’t contradictory with “the three R’s”—Reduce, Reuse, and then Recycle, he said.
While some cities and food companies are pushing for compostable products, others are working to promote durable, reusable containers, leading the cultural shift back to reuse and reduce our use of materials.
GO Box, a reusable takeout container service, offers those who buy takeout a sturdy plastic reusable container to eliminate the need for single-use clamshells. The reusable containers are checked out from vendors via an app and then dropped off at designated locations. The company—which is based in Portland but has expanded to San Francisco—collects, cleans, and sanitizes the containers, which are then re-used by other customers. At the end of their lives, the plastic reusable containers are recycled. A similar service, Green GrubBox, also exists in Seattle, and another, Rogue To Go, was recently launched in Ashland, Oregon.
For Here Please, is an Oakland-based nonprofit that helps cafés and restaurants reduce single-use plastics. The organization aims “to disrupt ‘to-go culture'” by putting together customized plans for cafés that want to convert to using reusable cups. The group trains baristas, educates customers face-to-face, helps with media and social media coverage, teaches people to make upcycled coffee sleeves, and provides visual reminders. Last year, For Here Please helped convert Perch Coffeehouse into the first disposable-free cafe in Oakland. The café offers a 25-cent discount to customers who bring their own mug and charges a small fee for renting out a reusable cup or mason jar.
“The financial incentives is huge… if you can’t do anything more about your café’s practices, you can at least offer a discount if someone brings a reusable mug,” said Vanessa Pope, the group’s co-founder.
In Portland, Nosa Familia Coffee started a Zero Waste coffee shop in 2018 where all customers are charged 25 cents for a disposable to-go cup and given 25-cent discount for bringing their own cup. According to the company’s transparency report, the move significantly shifted coffee drinkers’ behavior. The use of a to-go cup was slashed in half—from 66 percent to 31 percent. And 17 percent of the customers brought their own cup. Last year, Nosa Familia introduced the surcharge in all three of its Portland cafés.
Blue Bottle Coffee (owned by Nestlé) is also piloting a zero-waste project for its cafes, aiming to divert at least 90 percent of their waste from landfills by the end of 2020, and asking customers at two of their cafes to bring their own cups or rent one from the café. “We know some of our guests won’t like it—and we’re prepared for that,” Blue Bottle CEO Bryan Meehan wrote in a blog post in December. “But the time has come to step up and do difficult things. It’s our responsibility to the next generation to change our behavior.”
Experts caution that because reusable cups, containers, and cutlery also require raw resources and energy to produce, so they must be used consistently to offset their environmental impact. Despite this, most everyone agrees that reuse is best for the environment.
Those who aren’t ready to require reusable foodware may also resort to shaming. Whether photos of a frowning Greta Thunberg, the teen climate change activist, can lead consumers to skip on the disposable cup or fork remains to be seen.
A trend in Tel Aviv workplace cafeterias – photos of a judgemental Greta Thunberg next to disposable utensils. Here is #1: pic.twitter.com/8Zk93RfZ5s
— Allison K. Sommer (@AllisonKSommer) November 5, 2019
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As a component of a carbon capture strategy compostable single use has its transitional benefits.
What we also need more of is responsible journalism to advance the evolution of environmentally compatible tech, not hinder it.
I don't understand why weed trees such as the cottonwood, that grow even when a tree is cut down or falls in a wind storm, (I have one that fell and 20 trees grew from it), can't be used for decompostable items.
There was no plastic problem in the 1800's. People used cloth or knitted bags and wooden boxes when they shopped for food. They also canned food using glass jars with tin lids. They stored flour in flour tip out bins in the kitchen. They dried vegetables and seeds and stored them in wooden bins and in large glass jars.
We have become a throw away society. Maye we are too rich and don't know how to conserve and carefully deal with our food and items we buy. Things used to be recycled and given to others when we had no further use for them. Clothes were given to family or friends and neighbors. Now, they are simply thrown out.
There are already stories about people getting sick from re-use of grocery store bags that were used for meat then re-used for fresh food. I have a set of grocery bags carefully labeled for meat, and I insist that the baggers at the store use only those for meat, and don't put my vegetables into them. But left to themselves, they don't care. We will see a lot more food-borne illness from reusable containers.
Whatever happened to taking tin cans and glass bottles back to the store to turn in for a discount on the same product? With such widespread businesses like Coca-Cola and Amazon, you'd think they could do similar, where bottles or packaging material is recollected at a drop-off center in major towns, in exchange for a digital coupon which could be used on their websites. All the tech is there, just needs someone to actually start doing it...
Just a thought...
People could always try the whole "reduce" thing by simply eating far less.
program accepts them. They also provide a roll of bags with a composting bin - starter kit. Thanks, Alison
What ARE they even composting, if not food scraps?
The majority of my business is take-out, customers won't bring their own cutlery or cups simply out of convenience. To everyone suggesting people just "cook at home more" and brown bag lunches, only 10% of the US population are actually interested in cooking. Time is money so there's that. If I raise my prices to "do the right thing", my customers will go somewhere else.
I want to be a part of the solution, currently I am part of the problem, so I ask of y'all, what do I do?
I used to send soups and hot pasta dishes with my kids to school in these. They keep soup hot - the pasta did not hold heat as well.
Glass.
Re-usable containers.
Cloth diapers.
Repairable machines and electronics.
That's what my grandparents, parents and my generation had. And we used it well. There was no need for massive "landfills" back then.
We need to re-instill the ideals we had back then - that things were precious, built to last, and cost effective only if they could be maintained and re-used.
Participating in a program like this would require acceptance of liability on your own part, where you don't hold the food establishment responsible for your food contamination.
Retailers could optionally carry a supply of re-usables. If a customer is a regular at any one place, they can make a one time purchase of the reusable and for each subsequent visit bring in their empty to exchange and the establishment can serve them in a container from their locally sanitized stock.
The welding gas industry has been doing this for decades with gas bottles. You buy your bottles new one time and it goes into the exchange program when you come back for a refill.
Where is the value of clean water? It takes a lot of water and energy to wash/sanitize the reusable dishware and cutlery for the next customer. If not done thoroughly, we will see an increase of food-borne illnesses.
Not such a simple answer.
However, no discussion of the impact humans are having on the environment is complete without addressing population growth. This is the most ignored topic in sustainability. In addition to a culture change, there need to be fewer people.
There are no easy fixes. People shouldn't stop thinking about problems and how to solve them, but objectivity and a willingness to expand the range of information being considered are key to making real progress. I worry that a society that favors ideas dosed out in 140 characters or less and "debate" responses limited to 90 seconds will never get anywhere good.
- The carbon footprint of a package is just one metric. End-of-life destination (compost pile vs landfill), beginning-of-life sources (renewable plants), diverting food from landfills, and the environmental value of finished compost (improved soil heath, better plant growth, reducing erosion and irrigation) are factors too. We shouldn’t oversimplify the issue.
- Compostable packaging diverts food from landfills, and third-party studies have shown that the amount of food scraps captured in front-of-house because of compostable packaging is significant.
o Farm Aid study: The Farm Aid 2016 music festival found that front-of-house composting bins were 54% packaging, 46% food (by weight). The exclusive use of compostable packaging resulted in the composter accepting the FOH stream. Had the composter only accepted back-of-house organics, it would have received less than half of the food scraps it collected. Study overview: https://www.biocycle.net/2017/08/10/quantifying-diversion-impact-compostable-packaging; study: https://greenblue.org/work/value-of-compostable-packaging/
o Eco-cycle study: Eco-Cycle conducted waste audits at 18 foodservice operations to understand best practices for reducing wasted food. Compostable packaging and durables were the most effective approaches to capturing food scraps, where close to 100% of food scraps capture can be achieved with minimal contamination. Food scraps and napkins made up at least 56 percent of the contents of the composting bin in every sector, contrary to the belief that FOH collections are mostly packaging. Study overview: https://www.biocycle.net/2019/08/13/front-house-organics-collection; Study: http://www.ecocycle.org/files/pdfs/Reports/front-of-house-composting-study-ecocycle.pdf
- While contamination is a concern, more and more companies, like Eco-Products, are working with composters who successfully accept packaging as a feedstock. In addition, Eco-Products has proudly launched a new Vanguard line that is BPI certified – another example of how food service ware companies are constantly seeking new solutions.
Thank you for considering these additional relevant points, which are an important part of the discussion.
It is charging a fee to consumers on any single-use takeout cups (whether you stay or go with them), regardless of the material, to address single-use behavior change. And, it requires reusable/durable foodware be used by ANY food service establishment that has even one seat to accommodate a dine-in patron. Switching from the blue bin to the green bin will not save us. We can neither recycle or compost our way out of this mess of single-use behavior. That is the change that Berkeley's Single-Use Foodware & Litter Reduction ordinance was seeking to effect. Getting rid of plastic is just something we need to address at the same time, for many reasons noted.