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How to reseal plastic packaging

In today’s world, plastic packaging is everywhere. From snack bags to household products, plastic is the go-to material for packaging. However, have you ever noticed how frustrating it can be when the packaging doesn’t seal properly? Whether it’s a bag of chips that goes stale or a container of leftovers that leaks in the fridge, a poor seal can cause all sorts of problems. That’s where knowing how to reseal plastic packaging comes in handy. In this article, we’ll explore the different methods and tools you can use to ensure your plastic packaging stays sealed, so you can say goodbye to stale snacks and messy fridge spills. So keep reading to learn all about the art of resealing plastic packaging.

How to Reseal Plastic Packaging: A Comprehensive Guide for the Eco-Friendly


Plastic packaging is a ubiquitous part of modern life, but it’s also a major environmental concern. Plastic waste can take hundreds of years to degrade, and it’s estimated that only 9% of all plastic ever produced has been recycled. One way to reduce plastic waste is to reseal packaging instead of throwing it away. In this guide, we’ll explore the best methods for resealing plastic packaging, from using heat to employing eco-friendly alternatives.

Method 1: Heat Sealing

Heat sealing is a popular method for resealing plastic packaging, particularly for food items. To heat seal, you’ll need a heat sealer, which is a machine that uses heat to melt the plastic and create a seal. Heat sealers come in a variety of sizes and styles, from handheld models to industrial-grade machines.

To use a heat sealer, place the plastic packaging between the two sealer jaws and press down on the handle. The heat will melt the plastic together, creating a tight seal. This method is particularly effective for resealing chip bags or other snack packaging.

Method 2: Tape and Clips

If you don’t have a heat sealer, you can still reseal plastic packaging with tape or clips. Use a strong adhesive tape, such as duct tape or packing tape, to seal the edges of the packaging together. For larger items, such as storage bags, you can use binder clips or clothespins to create a tight seal.

While this method isn’t as effective as heat sealing, it’s still a great way to reduce plastic waste and keep your food fresh.

Method 3: Eco-Friendly Alternatives

If you’re looking for a more eco-friendly way to reseal plastic packaging, there are a few alternatives to consider. One option is to use beeswax wraps, which are a reusable and sustainable alternative to plastic wrap. Beeswax wraps are made from cotton fabric coated in beeswax, which creates a natural seal around food items.

Another eco-friendly option is silicone food bags, which are reusable and dishwasher safe. These bags are made from food-grade silicone and can be used to store everything from snacks to leftovers.

Method 4: Ziplock Bags

Ziplock bags are a popular option for storing food items, but they can also be used to reseal packaging. To use a ziplock bag, simply place the plastic packaging inside and zip it shut. The ziplock seal will create a tight seal, keeping your food fresh and reducing plastic waste.

Method 5: Vacuum Sealing

Vacuum sealing is a popular option for preserving food items for longer periods of time. To vacuum seal, you’ll need a vacuum sealer machine, which removes the air from the packaging before sealing it. This creates a tight seal that keeps food fresh for weeks or even months.

While vacuum sealing is effective, it does require a special machine and can be more expensive than other resealing methods.


Resealing plastic packaging is a simple but effective way to reduce plastic waste and keep your food fresh. Whether you choose to use a heat sealer, tape and clips, or eco-friendly alternatives, there are plenty of methods to choose from. By resealing your plastic packaging, you’re not only helping the environment but also saving money and reducing food waste.

Method 6: Twist Ties

Another simple and easy way to reseal plastic packaging is by using twist ties. Twist ties are small, bendable wires with a paper or plastic coating that can be twisted around the opening of a bag to create a tight seal. They are commonly used for bread bags and other food packaging, but can also be used for non-food items like plastic bags for storage.

Method 7: Repurpose Containers

Instead of throwing away plastic packaging, consider repurposing it for storage. For example, plastic containers from food items like yogurt or deli meats can be washed and reused for storing small items like buttons, screws, or craft supplies. This not only reduces plastic waste but also gives you extra storage options.

Method 8: Use a Food Saver

A food saver is a machine that creates an airtight seal around food items, similar to vacuum sealing. However, instead of removing the air from the packaging, a food saver uses a special bag with a one-way valve that allows air to escape but doesn’t let it back in. This creates a tight seal that keeps food fresh for longer periods of time.

Method 9: Fold and Seal

For smaller plastic packaging like snack bags or produce bags, a simple yet effective way to reseal them is by folding the opening over and securing it with a sticker or piece of tape. This method is quick and easy and can be done without any special tools or equipment.

Method 10: Use a Reusable Lid

Some plastic packaging like yogurt cups or sour cream containers come with a lid that can be reused for storage. Instead of throwing the lid away, wash it and use it to cover other food items or small containers. This is a simple way to reduce plastic waste and get more use out of your packaging.

In conclusion, resealing plastic packaging is a simple and effective way to reduce plastic waste and keep your food fresh. From using heat sealers to eco-friendly alternatives like beeswax wraps and silicone bags, there are plenty of options to choose from. Additionally, repurposing containers, using twist ties, or folding and sealing can also be effective resealing methods. By making a conscious effort to reseal your plastic packaging, you can help protect the environment and save money in the long run.

Frequently Asked Questions

How do I reseal plastic packaging?

To reseal plastic packaging, you will need a heat sealer or an iron. First, clean the area you will be sealing. Then, place the open end of the plastic packaging between the heat sealer or iron and press down firmly for a few seconds until the plastic melts together. Move the sealer or iron along the plastic packaging until you have sealed the entire package. Let it cool for a few seconds before using it again.

Can I reseal plastic packaging without a heat sealer or iron?

Yes, you can! You can use a strong adhesive tape, like duct tape or packaging tape, to seal the packaging. Simply fold the open end of the packaging and tape it securely. However, this method may not be as effective in keeping the contents fresh and airtight as heat sealing.

Can I reuse plastic packaging?

It depends on the type of plastic packaging. Some plastics, like PETE and HDPE, can be reused multiple times as long as they are properly cleaned and sanitized. However, other plastics, like PVC and polycarbonate, release harmful chemicals when heated and should not be reused. Check the recycling symbol on the packaging to determine if it can be safely reused.

Key Takeaways

  • To reseal plastic packaging, use a heat sealer or iron to melt the plastic together.
  • If you don’t have a heat sealer or iron, you can use strong adhesive tape to seal the packaging.
  • Some plastics can be safely reused, while others should not be reused.

In conclusion, resealing plastic packaging can be done easily with the right tools and knowledge. Remember to check the recycling symbol on the packaging to determine if it can be safely reused. Properly sealing and reusing plastic packaging can help reduce waste and save money in the long run.

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