How to choose the right vacuum sealer

Updated June 2026Independently researchedNo paid placement.

What should you look for in a vacuum sealer?

Start with the basics: suction strength, seal quality, and ease of use. Most external sealers pull a strong enough vacuum for everyday tasks, but the real difference is in the seal bar, look for a double seal or adjustable heat settings to avoid weak seals on oily or moist foods. A built-in roll storage and cutter is a convenience you’ll appreciate, as is a removable drip tray for easy cleanup. Also consider the type of bags. External sealers use embossed bags or rolls that you cut to size, while chamber sealers use smooth bags and can handle liquids without a mess. If you plan to sous vide often, check that the sealer has a “moist” or “gentle” mode to prevent crushing delicate items. Finally, think about noise, some models are noticeably louder than others, which matters if you seal frequently.

External vs. chamber vacuum sealers: which is right for you?

External vacuum sealers are the most common and affordable. They work by sucking air out of the bag and sealing it with a heat strip. They’re great for dry foods, freezer prep, and sous vide, but they struggle with liquids, you’ll need to freeze soups or marinades before sealing. They’re also compact and easy to store, making them ideal for most home kitchens. Chamber sealers are a step up. The entire bag sits inside a chamber, and the air is removed from the chamber, which allows for sealing liquids, powders, and even jars (with accessories). They’re faster, quieter, and produce a stronger vacuum, but they’re larger, heavier, and cost significantly more, often several hundred dollars. If you’re a serious meal prepper or hunt/fish and freeze large quantities, a chamber sealer pays off. For casual use, stick with an external model.

How to choose the right vacuum sealer bags and rolls

Bags and rolls are where you’ll spend ongoing money, so choose wisely. Most external sealers use embossed bags, the textured side allows air to escape. You can buy pre-cut bags or rolls that you cut to size. Rolls are more economical and let you customize bag length, but you’ll need to seal one end yourself. Look for BPA-free, food-grade materials, and consider the thickness, thicker bags (like 3-4 mil) are more durable for freezer storage but can be harder to seal on some machines. For chamber sealers, you’ll use smooth bags that come in rolls or pre-cut sheets. These are often cheaper per bag, but the sealer itself is pricier. Also, some brands have proprietary bag designs, make sure you’re comfortable with the ongoing cost. A good tip: buy a starter kit with the sealer to test different bag sizes, then buy rolls in bulk to save money.

What features are worth paying extra for?

Beyond the basics, a few features can make a big difference. A pulse or manual vacuum control lets you stop suction early, which is perfect for soft items like bread or berries. A “moist” setting reduces suction power to avoid pulling liquids into the machine. Some models have a built-in bag cutter and storage compartment, which keeps everything tidy. Also, look for a sealer with a strong seal bar, double seals are more reliable. Another feature to consider is the ability to seal without vacuuming, which is handy for resealing chip bags or protecting items from moisture. Some higher-end external models offer a “gentle” mode for delicate foods. For sous vide enthusiasts, a model with a dedicated “sous vide” preset can simplify the process. But don’t overpay for gimmicks, focus on the features you’ll actually use weekly.

How to maintain and clean your vacuum sealer

Regular maintenance keeps your sealer working well. After each use, wipe down the sealing strip and the drip tray, food particles can cause poor seals. Most drip trays are removable and dishwasher-safe, but check the manual. If you seal moist foods, let the machine dry completely before storing to prevent mold. Also, replace the sealing tape or gasket when it wears out, you’ll notice weak seals or a burning smell. For external sealers, the vacuum channel can get clogged with crumbs or liquid. Use a soft brush or a damp cloth to clean it gently. Avoid using abrasive cleaners. If you have a chamber sealer, clean the chamber interior and the seal bar regularly, and check the oil level if it’s an oil-based model. Proper care extends the life of your machine and ensures consistent results.

Common mistakes to avoid when using a vacuum sealer

One of the biggest mistakes is overfilling the bag, leave at least an inch of space between the food and the seal to ensure a tight closure. Another is sealing wet foods without freezing them first; the liquid can get sucked into the machine and ruin the seal or damage the pump. Also, avoid using regular zipper bags or non-embossed bags in an external sealer, they won’t vacuum properly. Don’t forget to pre-freeze items like berries or delicate herbs to prevent crushing. And when sealing powders or liquids, use a chamber sealer or a manual pulse mode. Finally, don’t assume all bags are reusable, some can be washed and reused, but only if they’re sturdy and you clean them thoroughly. Follow the manufacturer’s guidelines to avoid frustration.

Frequently asked questions