If you’ve recently bought a vacuum sealer, you already know how useful it is for keeping food fresh and organised. But to get the most out of your machine, you need the right vacuum sealer bags. These bags might look simple, but they play a big role in how effectively your food is preserved. The wrong kind can lead to poor seals, wasted food, or a frustrated cook. The right kind, however, keeps everything airtight, durable, and freezer-safe — just as you intended.
Why the Right Bag Matters
Not all bags are created equal. Different materials, textures, and thicknesses can affect how your vacuum sealer performs. For example, a standard smooth plastic bag won’t work well with most external vacuum sealers because the air can’t escape properly. Textured or embossed bags, on the other hand, allow air to move through channels during the sealing process, creating that perfect airtight lock.
Choosing the right bag ensures your food stays fresher for longer while protecting it from freezer burn, moisture, and odours. It also saves you money — both by preventing spoilage and by helping your machine work more efficiently.
Know Your Sealer Type
Before buying bags, it’s important to understand what kind of vacuum sealer you own. There are two main types: external (edge) sealers and chamber sealers.
- External sealers are common in home kitchens. They require textured or embossed bags that help air escape during sealing.
- Chamber sealers are typically used in professional kitchens and can work with smooth, flat bags because the air is removed from the entire chamber rather than just one side of the bag.
Knowing which category your sealer falls into will help narrow your options right away. Using the wrong bag type can lead to weak seals or air leaks that defeat the purpose of vacuum sealing altogether.
Bag Thickness and Quality
The thickness of your vacuum sealer bags affects both durability and protection. Most bags range from 3 to 5 mils thick (1 mil = 0.001 inch). Thicker bags provide better defence against punctures — especially when sealing foods with sharp edges like bones or pasta. If you plan to store items for the long term or use them in the freezer, go for thicker bags.
On the other hand, thinner bags work well for everyday use, like storing leftovers or dry ingredients. It’s worth keeping a mix of both thicknesses on hand, so you can choose what best fits your needs each time.
Size and Customisation
Vacuum sealer bags come in rolls or pre-cut sizes. Rolls give you flexibility — you can make custom-length bags to fit anything from a handful of herbs to a large roast. Pre-cut bags, however, are convenient for quick use and less wasteful if you regularly store similar portions.
If you meal prep or portion food ahead of time, consider buying a few different sizes. This way, you won’t struggle with oversized bags or end up wasting material.
Food Type and Storage Needs
Think about what you plan to store. Wet or oily foods may require specially designed bags that resist moisture, preventing seal failure. For long-term freezer storage, look for freezer-safe and BPA-free materials to ensure safety and longevity.
If you enjoy sous vide cooking, make sure your bags are rated for boiling temperatures. Not all standard vacuum bags can handle high heat, and using the wrong kind can cause them to break down or leak during cooking.
Reusability and Eco-Friendly Options
For those trying to reduce waste, reusable vacuum sealer bags are becoming increasingly popular. Many brands now offer bags that can be washed, dried, and resealed multiple times. While they cost more upfront, they’re a great choice for long-term savings and sustainability. Just make sure they’re compatible with your sealer and can be properly cleaned between uses.
How to Spot Quality Bags
High-quality vacuum sealer bags are made with multiple layers for extra strength, have textured channels for efficient air removal, and maintain consistent thickness throughout. They should feel sturdy to the touch, not flimsy or overly stretchy. Always check product descriptions and reviews before buying to ensure they meet your needs and are approved for food safety.
Final Thoughts
A good vacuum sealer is only as effective as the bags you use with it. Choosing the right type, size, and quality of bag ensures your food stays fresh, your machine performs well, and your storage remains efficient. With so many options available, it’s worth spending a little time to find the perfect fit for your kitchen.
So next time you’re shopping for vacuum sealer bags, think about your sealer type, what you store most often, and how long you want it to last. A thoughtful choice today can make a big difference in how fresh and flavourful your food tastes tomorrow.
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