Consumers

You are currently browsing the archive for the Consumers category.

Bioplastics  are a form of plastic that come from renewable sources, such as corn, vegetable oil or corn starch, for example. They differ from the standard plastics, made from petroleum, that we have come to depend on in society over the past several decades. For example, many clear plastic containers today are made from PLA or polylactic acid – a resin produced from corn. NatureWorks  in the USA is the world’s largest producer of PLA. Their containers are compostable in industrial composting facilities only. PLA is also used in cups and containers as an impermeable liner.

Scanning the Internet, there has been quite the debate over the past few years on whether or not corn plastic actually makes us better off than our conventional petroleum based PET. So here is a condensed list derived from the more prominent sources* that summarizes some of the key advantages and disadvantages of corn plastic:

Advantages of PLA

  1. Derived from corn which is a renewable resource
  2. PLA products are compostable in industrial composting facilities
  3. PLA is cost competitive with regular petroleum-based resins such as PET and most likely cost advantaged in the future given rising petroleum prices
  4. Producing PLA uses 65% less energy than producing conventional plastics
  5. Producing PLA creates 68% fewer greenhouse gases than producing conventional plastics
  6. PLA contains no toxins
  7. From a safety perspective it will not blow up like oil might

PLA pellets

Drawbacks/Criticism of PLA
  1. PLA is only compostable in industrial composting facilities – access is limited as only few sites in the USA exist (113+)
  2. PLA in large amounts may interfere with conventional composting because the resulting polymer will make the compost wetter and more acidic
  3. Consumers will dump PLA in with their regular PET recycling which can contaminate the PET recycling stream if it happens in large quantities
  4. Material Recovery Facilities (MRFs) have to pay to sort out PLA and pay again to dispose of it
  5. Because of the lack of infrastructure, the majority of PLA packaging is likely to still end up in landfills
  6. Most of the corn used to produce PLA is genetically modified
  7. Some individuals raise morality concerns in using food for packaging if so many people in the world are starving

In addition to PLA, there are a number of other renewable packaging alternatives hitting the markets, most notably, agricultural fiber products produced using natural fibers such as bagasse, bamboo, bulrush, and palm fiber. They differ mainly in that they can be composted at home, not requiring an industrial composting facility.  While they have many advantages, agricultural fiber based products are not necessarily direct substitutes to PLA. For example, they cannot be used for high moisture applications, such as cups, without partnering with PLA or other such product to offer a barrier coating.   

 *Sources
The Daily Green – TheDailyGreen.com: Is Corn Plastic Good for the Environment?
Smithsonian Magazine – Smithsonian.com: Corn Plastic to the Rescue
Nature Works LLC – NatureWorksLLC.com: Fact or Fiction
Oregon Environmental News – OregonLive.com: Corn plastic sounds great, but it’s tough to recycle and may foul systems
Plastic Redesign Project

» Leave a comment

Tags: , , , , , , , , , , , , ,

An increasing number of products today are described as “eco-friendly” and biodegradable. However, not all of them live up to the environmentally friendly label. Even those that do make the grade as certified biodegradable or compostable don’t end up where they should.

According to the US Environmental Protection Agency (EPA), “Organic materials—comprised of yard trimmings, food scraps, wood waste, and paper and paperboard products —are the largest component of our trash and make up more than two-thirds of the US 249.6 million tons of solid waste in 2008.” The product category of containers and packaging specifically is right up there with 31 percent or 78 million tons making it to the municipal waste stream.

So what can we do? To start, let’s sort through the confusion and break down (pun intended) the differences between products that are compostable and those that are biodegradable.

Biodegradable

According to the US Federal Trade Commission (FTC) Green Guide, a product or package qualifies as biodegradable if it “completely breaks down and returns to nature, decomposing into elements found in nature within a reasonably short period of time after customary disposal.”

The Biodegradable Products Institute (BPI) cites a 2006 American Chemistry Council study showing that most consumers believe a product labeled “biodegradable” will go away completely and on its own in a year or less. The BPI says many consumers also believe that these products will “biodegrade” in landfills.

However, most of today’s landfills lack the key ingredients of exposure to sunlight, air and moisture for the product or package to break down in a timely manner. The BPI notes that today’s landfills are engineered to eliminate moisture and to slow biodegradation. “In fact, researchers have found in landfills legible 30 year old newspapers; 5 year old lettuce and 10 year old hotdogs,” the BPI said in a recent article. They strongly encourage that we focus our energy on our solid waste challenge through more source reduction, reuse, recycling and composting, decreasing the amounts of waste going to landfills and incinerators.

To combat the hikes in “biodegradable” claims, the FTC has been cracking down on false or deceptive environmental marketing claims.

Compostable

View of Earthcycle Packaging decomposing in your compost bin

Compostable products are similar to biodegradable ones, but when they break down, they turn into humus, which provides valuable nutrients to the soil. According to the FTC, for products to qualify as certified compostable “all the materials in the product or package will break down into, or otherwise become part of, usable compost (e.g., soil-conditioning material, mulch) in a safe and timely manner in an appropriate composting program or facility, or in a home compost pile or device. Compostable products typically break down over one to four months in a composter, depending on the product size and material used.

The important distinction between biodegradable and compostable products is that the resulting humus is safe and a valuable nutrient to soil.  The humus is tested for heavy metal content and must meet US and Canadian stated levels in order to be considered compostable.

Earthcycle turns to humus in your compost

So, while some products are considered biodegradable, they may not be considered compostable because they either don’t meet the heavy metal requirements or don’t break down in a timely fashion.

In the alternative packaging world, certified compostable products, such as our Earthcycle packaging, are made out of such natural products as palm fiber (which Earthcycle uses), bagasse (a sugarcane fiber), and vegetable starch to name a few. If you’re curious how Earthcycle composting works and what our product Life Cycle looks like – click here.

So, in addition to making better purchase decisions, looking for certified compostable products etc. (look for label below), and composting as much as applicable material as possible, here’s what the EPA recommends we can do:

“Reducing, reusing, recycling, and rebuying—the four “Rs”—is key to diverting organic materials from landfills or incinerators and protecting human health and our land, air, and water. Waste reduction and recycling prevents greenhouse gases (GHG) emissions, reduces pollutants, saves energy, conserves resources, and reduces the need for new disposal facilities.”

BPI Compostable Logo

» Leave a comment

Tags: , , , ,

Earthcycle is a leader among several companies working to make eco-responsible packaging the first choice for retailers, packers and consumers. We believe the more you know about the various eco-packaging alternatives, the easier it will be for you to make the right choices at the checkout.

There are various types of eco-packaging out there today, from bioplastics to various types of agricultural fiber, such as our palm products and others made of bamboo, bulrush and bagasse, to name a few. Each packaging alternative that can decompose into compost after use, instead of being added to the landfill, has a place in helping rid our planet of greenhouse gases, and contribute to a more sustainable society.

Let’s start by looking at bioplastics,which can now be found in everything from shopping bags to fast-food utensils to beverage containers.

PLA pellets

Bioplastics are a form of plastic that come

from renewable sources, such as corn, vegetable oil or corn starch, for example. They differ from the standard plastics, made from petroleum, that we have come to depend on in society over the past several decades.

For example, many clear plastic containers today are made from PLA or polylactic acid – a resin produced from corn. The containers are compostable but only in industrial composting facilities. PLA is also used in cups and containers as an impermeable liner. Stay tuned to this blog for a discussion of the pros and cons of PLA.

Many companies are moving away from standard plastics or, at the very least, using less petroleum-based material in their products. For instance, Coca-Cola, is piloting the PlantBottle , a new eco-friendlier container made in part from sugar cane and molasses. Coke says up to 30 percent of PlantBottle is made from plant-based material. It says PlantBottle is recyclable, has a lower reliance on a non-renewable resource, and reduces carbon emissions, compared with its standard petroleum-based PET plastic bottles. It’s a start.

Running shoe maker Mizuno has started to make some of its shoes using castor oil, a renewable resource, in its thermoplastic elastomers (which is a mix of plastic and a rubber).

More companies are also working to reduce the world’s dependence on polystyrene, sometimes known as Styrofoam (a trademark of Dow Chemical Co.), which is used in disposable coffee cups and cushioning material for packaging electronics and other goods. Rarely is polystyrene recycled due to the cost nor does it biodegrade—it just goes straight to landfill.

Some cities in the U.S. and around the world have banned polystyrene packaging in favour of earth-friendly containers that use fibers from materials such as wood, palm, bamboo, bulrush and bagasse.

Bulrush, for example, is an organic, sustainable, 100% compostable material that comes from the bulrush plant. Bulrush is grown in marshy areas normally considered unfit for growing crops. Similar to palm fiber, it is harvested and used by packaging companies to make a variety of food containers and other products.

Bagasse, the byproduct of sugarcane, is another fibrous material used in eco-packaging. When sugar cane is crushed to extract its juice, the leftover is bagasse.

Raw palm fiber

Earthcycle packaging is made of palm fiber sourced in Malaysia. A big advantage of our products over other eco-packaging is our ethical sourcing policy . So while our fiber is renewable, natural and non-GM, making for fully home compostable packaging, we can also assure that Earthcycle’s sources of raw material have not replaced any primary forest nor converted any Environmentally Sensitive Areas (ESA) for the purpose of palm oil production.

The above mentioned are just some of the eco-packaging alternatives that can be used to replace the “traditional” plastic packaging that society has come to heavily depend on.

Increasingly, more options are available for consumers today. Next time you buy something – whether it’s a box of strawberries or a big-screen TV – check the packaging. Where possible, pick the product that has the sustainable alternative or ask your retailers to make a change. It’s worth it!

» Leave a comment

Newer entries »