How to choose the right vacuum sealer

Updated June 2026Independently researchedNo paid placement.

What types of vacuum sealers are available?

The two main categories are external (or “suction”) sealers and chamber sealers. External sealers pull air from the bag while it sits outside the machine, making them compact and budget-friendly. Most countertop models fall into this camp, and they handle dry foods like grains, coffee, and frozen meat very well. They can seal moist items too, but you may need to freeze liquids first or use a dedicated moist setting to avoid liquid getting sucked into the pump. Chamber sealers place the entire bag inside a sealed chamber, then vacuum and seal it there. Because the vacuum is applied evenly on all sides, they can handle liquids, marinades, and soups without a mess. They’re also faster and produce a tighter seal, but they’re significantly larger, heavier, and more expensive, typically costing several hundred dollars more than a good external model. Unless you’re vacuum-sealing dozens of bags a week or working with a lot of wet ingredients, a chamber sealer is usually more than you need.

Which features make a real difference in everyday use?

Look for a pulse or manual control mode. This lets you stop the vacuum process at the exact moment you want, which is essential for delicate items like berries, chips, or soft cheeses, otherwise they get crushed. Many upper-mid-range external sealers include this feature, and reviewers consistently say it’s a game-changer for flexibility. A dual heat seal bar is another worthwhile upgrade. Instead of a single thin wire, the sealer uses two sealing strips to create a stronger, more reliable seal, especially on textured bags or when you’re sealing around crumbs. A built-in bag cutter and storage compartment for the roll are conveniences that save counter space, but they don’t affect performance. Also check whether the sealing strip is Teflon-coated; removable, easy-to-clean drip trays make maintenance much less annoying.

How do external vs. chamber sealers compare on bag costs?

External sealers use specially textured bags with a ridged pattern that allows air to be pulled out while keeping the bag open. These bags are moderately priced, typically a few cents more per bag than basic zipper bags, but far cheaper than buying pre-made vacuum packs. You can also buy rolls and cut your own custom lengths, which reduces waste and cost over time. Chamber sealers use smooth, non-textured bags, which are noticeably cheaper per bag because they don’t require the embossed channel. Over a year of heavy use, the bag savings can offset some of the upfront cost difference. However, for most households sealing a few times a week, the bag cost difference is minor, you’re better off investing in a good external sealer and quality rolls rather than chasing marginal savings.

What should you know about sealing moist or liquid foods?

If you plan to seal soups, stews, or marinated meats regularly, a chamber sealer is the honest recommendation. With an external sealer, liquid can be pulled into the vacuum channel or the machine’s pump, causing clogs or damage over time. Some external models have a “moist” setting that shortens the vacuum time to reduce this risk, and you can also pre-freeze liquids in a container before bagging. But it’s a workaround, not a reliable solution for heavy liquid sealing. For occasional wet items like raw chicken or fish with natural juices, an external sealer with a drip tray and a moist setting works fine as long as you keep the bag upright until the seal forms. Many owners report success by using a longer bag and leaving extra room at the top to keep the liquid away from the sealing area. Just don’t expect to seal a full bowl of chili without drama.

How to maintain your vacuum sealer for long life?

The most common failure point is the foam gasket that lines the vacuum channel. Over time it compresses or becomes sticky, allowing air leaks. Cleaning it gently with warm water and a soft cloth after every few uses helps, and replacement gaskets are usually available from the manufacturer. Some machines use a silicone gasket that lasts longer. Also wipe down the drip tray and the sealing strip regularly. Food residue or oil on the seal bar will weaken the seal and attract bacteria. If you seal a lot of greasy items, consider using a paper towel strip inside the bag near the seal to absorb excess moisture and oil. And empty the drip tray before it overflows, that’s the easiest maintenance habit to form.

Is a handheld vacuum sealer a good alternative?

Handheld sealers are compact, battery-powered or rechargeable, and work with specially designed zipper bags or containers. They’re great for occasional use, like sealing leftovers or snacks for lunch, and they take up almost no space. However, they cannot match the seal strength or vacuum power of a countertop model. The bags are more expensive per use, and you can’t seal rolls to custom lengths. Reviewers note that handheld sealers struggle with dense or irregular items, and the seal may fail after a few weeks in the freezer. They’re a convenient supplement to a full-size sealer but not a replacement if you want to seriously reduce food waste or do bulk freezing. For most cooks who vacuum seal at least twice a month, a small countertop unit is a better investment.

Frequently asked questions