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Sip Smarter: Why Glass Jars Beat Disposable Cups

Feb 24, 2025 by Derek
In 2013, Aamion, the co-founder of Slow Yourself Down, decided to replace disposable cups with glass mason jars for smoothies and cold drinks at The Wishing Well Shave Ice Truck.

The move was an early step toward building a business rooted in environmental responsibility.

Here is why we made the shift as a business to do that.

1. Raw Materials

Sustainable Sources vs. Finite Fuels

Glass mason jars begin with simple, abundant materials like sand, limestone, and soda ash—resources that don’t strain the earth’s reserves. Over 75% of glass is recyclable, meaning we can keep using what’s already here instead of digging deeper.

Single-use cups, on the other hand, rely heavily on petroleum for plastic or vast amounts of pulp for paper, both of which come at a higher environmental cost. With 90% of plastic never recycled, those cups demand constant new resources, while our jars lean on a cycle that’s easier on the planet.

2. Production

Energy Efficiency vs. Emissions Overload

Making a glass jar is a process we’ve refined for sustainability. Using recycled glass cuts energy consumption by 75% and reduces CO2 emissions by 20% per jar, lightening the load on the environment.

Single-use cups tell a different story: each plastic cup releases 10-30g of CO2 during production, and the 16 billion paper cups made yearly add their own emissions, especially with plastic linings that complicate disposal. Our jars prove you can create something durable without overburdening the atmosphere.

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3. Use Phase

Longevity vs. Disposable Waste

One Slow Yourself Down mason jar can replace hundreds of single-use cups, offering a reusable solution that pays off environmentally after just 6-15 uses. It’s built to last, encouraging a shift away from throwaway habits.

Compare that to the 500 billion single-use cups discarded globally each year—most used for mere minutes before heading to the trash. By choosing glass, businesses can cut waste and give customers a product that keeps on giving.
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4. End-of-Life

Recyclable Forever vs. Landfill Bound

When a mason jar’s time is up, it doesn’t just disappear—it’s 100% recyclable, retaining its quality indefinitely. In places like Europe, 76% of glass packaging gets recycled, keeping it in circulation.

Single-use cups struggle here: only 9% of plastic cups are recycled, and paper cups with plastic linings often end up in landfills due to processing challenges. Our jars support a closed-loop system; those cups, sadly, stack up as waste.

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5. Long-Term Impact

Longevity vs. Disposable Waste

Over the long haul, glass jars leave a gentle footprint. They decompose harmlessly over time—up to a million years—without releasing toxins or microplastics into ecosystems.

Single-use cups, however, linger differently: plastics break down into microplastics over 450 years, polluting water and soil, while paper cups in landfills emit methane, a gas 25 times more potent than CO2. With our mason jars, you’re choosing a future where waste doesn’t haunt the planet.

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Still Jar-Struck: 12 Years Strong

Twelve years later, the choice Aamion made in 2013 still echoes through the Wishing Well & Slow Yourself Down.

To this day, we’re pouring smoothies, teas and coffee into those same glass jars at The Wishing Well Coffee & Tea House—proof that small shifts can ripple into lasting change.

Join us in raising a jar to sustainability, one sip at a time.

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