Mason jars have been around for generations, but they’ve become a staple in sustainable living for a reason: they’re durable, reusable, and incredibly versatile. In a world where single-use packaging continues to pile up, reusing containers you already own is one of the simplest ways to reduce waste at home.
According to the Environmental Protection Agency (EPA), containers and packaging make up a major portion of municipal waste in the United States, contributing over 80 million tons of waste annually. (1) Meanwhile, glass containers can be reused again and again without losing quality, making mason jars one of the easiest low-waste tools to incorporate into your everyday life.
The best part? You don’t need to buy anything new to get started! If you already have a mason jar, or glass jar, sitting in your cabinet, here are five simple ways to give it a second life:
1. Store Bulk Foods and Pantry Staples
One of the easiest ways to reuse mason jars is for pantry storage. They work perfectly for dry goods like oats, rice, coffee beans, pasta, flour, and more.
Not only does this reduce the need for disposable plastic bags and packaging, or odd-sized boxes, but it also keeps your food fresher for longer. Clear jars also make it easy for you to see what you already have, which can help reduce food waste, which is another major environmental issue. The USDA estimates that 30-40% of the food supply in the United States goes to waste each year. (2)
Bringing mason jars to refill shops or bulk sections (like at Tare Market, or at your local co-op) is also a great way to avoid unnecessary packaging altogether!
2. Use Them For Homemade Drinks
Mason jars make surprisingly great everyday drinkware! Whether it’s a cold brew, smoothie, iced tea, infused water, you can repurpose your mason jar as a new mug, or grab new mason jar lids/attachments for covers.
Using reusable drink and food containers instead of disposable cups, plastic bottles, and packaging can significantly reduce waste over time. 120 billion disposable cups are used by Americans each year. By replacing one disposable cup a day for one year with a reusable cup, like a mason jar, you prevent approximately 23lbs of greenhouse gas emissions, 281 gallons of water usage, and 16lbs of solid waste. (3)
Keeping a mason jar in your fridge for ready-to-go drinks is a simple habit that cuts down on both waste (and spending!)
3. Organize Small Household Items
Reusable containers aren’t just for food! Mason jars are an easy and affordable way to organize items throughout the home, and the bonus of them being clear is you can see where everything is.
They work well for:
- Loose change and knick knacks
- Bathroom essentials like cotton rounds or hair ties
- Office supplies like pens, paper clips, scissors
- Kitchen tools and utensils
- Laundry pods and clothes pins
- Craft supplies and sewing materials
Repurposing containers for storage helps extend their lifespan and reduces the need to buy additional plastic bins or organizers that may break, or not suit the need over time.
4. Create A Low-Waste Bathroom Routine
Mason jars are also great to help simplify bathroom storage! Use them to hold your essentials like cotton rounds, bath salts or shower steamers, homemade scrubs, toothbrushes, and hair accessories.
They’re also great to use to refill at bulk stores for bathroom or home needs like laundry powders, toilet bombs, hair gels and more.
The beauty industry produces over 120 billion units of packaging annually, with an estimated 95% thrown away rather than recycled. Most beauty packaging is single-use, non-recyclable plastic, or typically items that cannot be conveniently recycled in your curbside bin, which means it ends up in the landfill. In 2018 in the US alone, almost 7.9 billion units of rigid plastic were created just for beauty and personal care products. (4)
If you do have beauty and personal care packaging to recycle, we recommend stopping by a local Ulta, Sephora, or Nordstrom store as they have drop-off bins from Pact for beauty packaging recycling.
5. Reuse for Leftovers or Meal Prep
Instead of disposable plastic containers or ziploc bags, try using a mason jar for storing leftovers and prepping meals ahead of time!
They’re especially useful for:
- Soups
- Overnight oats
- Sauces and dressings
- Fruit and veggies
Another idea is using them for meal prep as the taller structure works well for viral hacks like Layered Salad Jars and Instant Noodle Jars.
Reusing durable containers reduces reliance on single-use plastics, which continue to be a growing environmental and health concern. A simple reusable jar may feel small, but repeated daily habits like this can make a meaningful impact over time!
6. Starting a Herb Garden
Herbs are quick and easy to grow, and don’t need a ton of real estate. Fill up a few jars with soil and seeds, place them on your windowsill and you’ve got a little herb garden started! Mason jars make a great pot for herbs, and the clear jar will also help stop you from overwatering.
Sustainability doesn’t require buying new products, as using what you already have is always the most sustainable choice.
Mason jars are durable, accessible and endlessly reusable, making them a practical starting point for anyone trying to reduce waste at home. Whether you’re organizing your pantry, storing leftovers, bringing jars to refill shops, these small habits help reduce packaging waste and encourage a more intentional way of living.
Low-waste living isn’t about perfection! It’s about finding the simple systems that work for your everyday life. And sometimes, that starts with something as simple as the jar that’s sitting in your cabinet.
What’s your favorite mason jar hack?
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