The increasing use of plastic bags in our everyday lives has a detrimental effect on the environment, from contributing to global warming and ocean pollution to killing wildlife. Fortunately, compostable bags have been gaining traction as an alternative solution for reducing plastic waste. 

Compostable plastic bags offer many benefits over traditional plastic bags, such as a lower environmental impact, more sustainable usage and more straightforward disposal. However, whilst these bags are marketed as compostable, many consumers still need to be convinced about their true environmental impact.

Are compostable plastic bags really compostable? What should consumers consider before buying these types of bags? This article will help you find answers to your questions about compostable plastic bags. 


Understanding Compostable Bags 


Compostable bags are a type of plastic bag that is designed to degrade faster and more completely than traditional plastics. They are typically made from biodegradable materials, such as corn, vegetable oil, sugar cane and potato starch. These materials break down much quicker than regular plastics when composted under specific conditions, such as in a commercial composting facility.

Compostable bags have a similar appearance and function as traditional plastic bags, but they are made from renewable resources and are designed to break down into natural materials when composted properly. In contrast, traditional plastic bags are made from petroleum-based materials and can take hundreds of years to break down in landfills.


The Benefits of Using Compostable Plastic Bags


  • Safe for humans and animals alike

Unlike traditional plastic bags, compostable bags are made from natural materials, which break down into organic matter over time. This means that they do not release harmful chemicals or microplastics into the environment when they break down.

When it comes to animal safety, compostable bags can help prevent accidental ingestion of plastic by pets or wildlife. They are made from materials that are safer for animals to interact with and will break down harmlessly if they are accidentally consumed.

For humans, compostable bags can help reduce the risk of exposure to harmful chemicals. When traditional plastic bags break down, they release chemicals such as bisphenol-A (BPA) and phthalates, which have been linked to adverse health effects. In contrast, compostable bags are made from materials that are free from these chemicals and are less likely to harm human health.

  • Lower environmental impact

Compostable bags are made of biodegradable materials that break down quickly into natural elements, reducing the amount of waste production. 

  • More sustainable usage than regular plastic bags

Compostable bags are more sustainable than traditional plastic bags because they don’t contribute to the ever-growing plastic pollution problem. 

  • Cost-effective

Choosing compostable bags over traditional plastic bags can be an economic decision. Compostable bags are usually cheaper than regular plastic bags and offer a more sustainable solution that is better for the environment in the long term. 


The Drawbacks of Using Compostable Plastic Bags 


Despite the advantages of using compostable bags, they also have a few drawbacks that should be considered. 

For one, compostable bags have a relatively short lifespan compared to traditional plastic bags. They may also require special composting conditions to break down properly. 

It is also essential to note that there is no industry standard for labelling compostable products, so it can be difficult to verify whether a bag is genuinely compostable. Consumers should research any compostable products they are considering buying to ensure they are compostable and meet their needs.

Are Compostable Plastic Bags Really Compostable?


Compostable bags are designed to be compostable under specific conditions. These bags are typically made to break down into organic matter under certain conditions, such as high temperatures and specific moisture levels, in industrial composting facilities.

However, not all compostable bags are created equal, and not all composting facilities will accept them. Some bags may require specific conditions to break down, such as higher temperatures than are typically achieved in backyard composting. Additionally, some compostable bags may not fully break down in a reasonable amount of time, leading to the potential for microplastic pollution. To ensure that compostable bags are disposed of properly and do not contribute to plastic pollution, it’s important to check with local composting facilities to determine if they accept these bags and to follow any guidelines for proper disposal. 

Additionally, you should look for certifications from reputable organisations, such as the Biodegradable Products Institute, to ensure that the compostable bags they are using meet specific standards for compostability. There is no industry-wide standard for labelling compostable products, so consumers should research any product they are considering buying to ensure it meets their needs and is actually compostable.

In conclusion, compostable bags can benefit the environment when used and disposed of correctly. If you are considering switching to compostable bags, Bonnie Bio has got you covered. Contact us here.

What to Consider Before Buying Compostable Plastic Bags 


When choosing compostable bags, there are a few key points to consider. 

  • Check certification.

It is essential to check the product’s certification and labelling, as some products claiming to be compostable may not actually meet these standards. 

  • Choose the right material. 

Compostable bags come in various materials, and it’s essential to research the best option for your needs. 

  • Know where to dispose of them.

Check with local waste management services or online for certified composting facilities that accept compostable bags. 

  • Follow composting guidelines.

To ensure that compostable bags break down correctly, follow the composting guidelines laid out by your local waste management service. 

  • Store properly to extend lifespan.

Lastly, you need to store compostable bags properly to extend their lifespan and keep them safe from exposure to UV rays. 

Frequently Asked Questions


Q: Are compostable bags biodegradable? 

A: Compostable bags are designed to biodegrade under specific conditions. However, it is important to note that not all compostable bags are the same and not all of them will biodegrade in the same way.


Q: Can I use compostable bags for food storage? 

A: Yes, you can use compostable bags for food storage, but it is important to choose bags that are specifically designed for food storage and are certified compostable.


Q: What should I do with compostable bags after use? 

A: Compostable bags should be disposed of properly after use to ensure they can break down and decompose as intended.

Bonnie Bio: Sustainable Compostable Packaging in Australia


Looking for sustainable and compostable packaging for your business? Look no further than Bonnie Bio! With a commitment to quality and sustainability, Bonnie Bio offers a wide range of compostable packaging solutions that are safe for the environment and your customers.

Choose Bonnie Bio for the best compostable packaging in Australia and enjoy a range of benefits, including:

  • High-quality, durable packaging that’s designed to last
  • Safe and environmentally friendly materials that won’t harm the planet
  • A wide range of packaging solutions to meet all your business needs
  • Affordable pricing and excellent customer service


Make the switch to sustainable packaging with Bonnie Bio today and enjoy the peace of mind that comes with knowing you’re doing your part to protect the planet. Contact us now to learn more and place your order!