The Hidden Cost of Hospital Sterilization: Finding a Greener, Smarter Solution

Plastic pollution is a massive global issue, and healthcare is a major contributor. A 2019 study found that 110 Canadian hospitals produced 87,000 tons of waste per year—about the same weight as the Great Pacific Garbage Patch.
Have you ever thought about where all the materials used to keep surgical instruments sterile end up? The reality is that hospitals generate massive amounts of waste, much of it from the sterilization process.
Many hospitals currently rely on polypropylene wrap (a type of plastic) to keep surgical tools clean and safe. Some of this wrap is reusable, but much of it is single-use—meaning it's used once and then discarded. Given that hospital operating rooms alone produce up to a third of a hospital’s total waste, it’s clear that a better system is needed.
That’s where hard case sterilization containers come in. These reusable aluminum and metal containers could be a game-changer, slashing waste and even saving hospitals money in the long run. But are they really as effective as the traditional sterilization wraps? That’s what my research aims to find out, using Sunnybrook Hospital as a case study.
Breaking Down the Options
Let’s take a closer look at the three main sterilization methods hospitals use:
- Disposable Polypropylene Wrap – This is the most common choice. It’s lightweight, effective, and easy to use, but it’s also incredibly wasteful. Most of it ends up in landfills because hospitals don’t separate it properly for recycling.
- Reusable Polypropylene Wrap – A slightly greener option, but still not perfect. These wraps need to be laundered after each use, which requires water, energy, and time. Plus, they can get punctured and need repairs, which adds to the overall cost and effort.
- Hard Case Sterilization Containers – These aluminum or metal cases can be used over and over again, significantly reducing waste. Studies suggest they could be a cost-saving solution as well, with one hospital projecting $233,000 in savings over ten years.

Why This Matters
Plastic pollution is a massive global issue, and healthcare is a major contributor. A 2019 study found that 110 Canadian hospitals produced 87,000 tons of waste per year—about the same weight as the Great Pacific Garbage Patch.
The World Health Organization has called for better waste management in healthcare, emphasizing two key points:
- Reduce the amount of waste hospitals generate.
- Improve waste segregation and disposal practices.
Switching to reusable hard case containers aligns with both of these goals. Not only do they cut down on the sheer volume of waste, but they also eliminate the need for constant repurchasing of disposable wrap.
What the Research Says
The data backs up the benefits of hard case sterilization. A study in the American Journal of Infection Control found that rigid containers are just as effective as traditional wraps in keeping surgical tools sterile. Another report by Practice Greenhealth highlighted additional benefits like fewer workplace injuries from wrapping tools and better instrument organization.
From a financial standpoint, hospitals stand to gain big. A case study at MetroWest Medical Center in Massachusetts found that adopting hard case containers could lead to six-figure savings in just a few years.
The Next Steps
To get a clearer picture of the financial and environmental impact, my research at Sunnybrook Hospital is comparing the costs of all three sterilization methods over a five-year period. The goal is to create a standardized assessment tool that hospitals across Canada can use to make informed decisions about sterilization practices.
If the data confirms what existing studies suggest, switching to hard case sterilization containers could be a simple, effective way to reduce waste, cut costs, and make hospitals greener. It’s time to rethink how we sterilize surgical tools—and find a smarter, more sustainable approach.
Conclusion
In a world where sustainability is no longer optional, hospitals need to step up their waste management game. While disposable plastic wrap has been the go-to for years, it’s clear that a better solution exists. Hard case sterilization containers might just be the answer we’ve been looking for—a win for hospitals, a win for the environment, and a win for healthcare as a whole.

Gina Vaccaro serves as the Manager of Finance and Strategic Operations within the Athletics and Recreation department at Toronto Metropolitan University (TMU). In 2022, following TMU's rebranding, Gina created and led the Branded Materials Transition Project (BMTP). This initiative successfully repurposed, recycled, or donated over 24,000 lbs of material bearing the university's former name, diverting it from landfill. Her dedication to sustainable practices was recognized in 2023 when she and her team received the Julia Hanigsberg Make Your Mark Award for their innovative work on the BMTP.
Currently, Gina is advancing her expertise as a student in TMU's Master's program in Environmental Applied Science and Management. She also participated in MIT Professional Education's inaugural "Circular Economy: Transition for Future Sustainability" course.
Questions about the article? Contact Gina Vaccaro directly at: gvaccaro@torontomu.ca