Can You Vacuum Seal Hot Food?

HomeKitchenFood PreservationVacuum Seal Hot Food
Last updated March 20th, 2023

There's a lot to think about when you're preparing food safely. One of the most important issues is making sure that your food is cooked correctly and safe to eat. Another thing to consider is how to store your food so that it lasts as long as possible.

You might be wondering therefore if it's safe to vacuum seal food while it's still hot to try and lock in the freshness as long as possible?

Vacuum sealing hot food

When you buy products through the links on this site we may earn an affiliate commission. Learn more

Is It Safe to Vacuum Seal Food When It’s Still Hot?

No, it’s not safe to vacuum seal food when it’s still hot for two main reasons:

Firstly, the boiling point of a liquid is much lower in a vacuum, so the hot food could start to boil inside the sealer bag as the vacuum level increases. If you’re using a chamber vacuum sealer, you risk unintentionally boiling off all the liquid in your food and completely ruining the meal you’ve just cooked, not to mention the danger of a boiling liquid inside a plastic sealer bag!

Secondly, when food is hot, it gives off steam. This steam inside a vacuum bag can cause the vacuum seal on the bag to soften and break, which will let in air and moisture before you have a chance to chill or freeze it properly. This will lead to bacteria growth and make the food unsafe to eat.

So What’s the Best Way to Vacuum Seal Hot Food?

Although vacuum sealing food can help keep it fresh for a lot longer, it’s best not to vacuum seal food when it’s still hot. Not only are you creating an environment for bacteria to grow, but you’re also in danger of bursting your vacuum bags!

If you have to do it, though, the best thing you can do is let your food cool down to room temperature first so that it’s then safe to vacuum seal. You’ll need to cool your food down as fast as possible to inhibit bacterial growth.

How to Cool the Food as Fast as Possible before Sealing

The “danger zone” for bacteria growth is 40F – 140F (4C-60C), so in commercial kitchens, you’ll often see chefs using a special ice bath to speed up the cooling process before vacuum sealing.

2 x AmazonCommercial Hotel Pans
Perfect for making DIY ice baths. Made from 22 gauge stainless steel. 4″ deep for plenty of ice coverage.

Last update on 2024-04-20 at 14:20 / Affiliate links / Images from Amazon Product Advertising API

If you were wondering if you could just put your hot food in the fridge first, then stop! Placing hot food in a refrigerator will increase the fridge’s internal temperature and put all the food in there at risk of heating up enough to increase bacterial growth.

It’s also not recommended to place cooked food that’s been successfully vacuum sealed in the fridge anyway. Vacuum sealing food won’t wholly stop bacterial growth. Many types of food bacteria will continue to grow in the partial vacuum created by a vacuum sealer. So it’s best to put cooked then vacuum-sealed food into the freezer to keep it fresh for long periods.


Center for Foodborne Illness Research and Prevention – Avoiding the Danger Zone

You Might Also Like…

Does Meat Marinate Faster If It’s Vacuum Sealed?

Does Meat Marinate Faster If It’s Vacuum Sealed?

The Truth about Vacuum Sealing & Meat Marination Many articles, blog posts, and even the vacuum sealer manufacturers themselves, claim that meat will marinate faster if it is vacuum-sealed. The idea behind this claim is that by vacuum-sealing meat, the marinade...

Is Vacuum Sealed Food Healthier?

Is Vacuum Sealed Food Healthier?

Are There Any Health Benefits to Vacuum Sealing Food? The vacuum sealing process does not necessarily make food healthier, but it can help preserve the nutritional content of the food. Vacuum sealing removes air from the packaging, which can in turn slow down the...

The Best Commercial Vacuum Sealers

The Best Commercial Vacuum Sealers

Commercial Chamber Vacuum Sealers Hamilton Beach PrimaVac 406 If you’ve got the counter space for it then the 406 is your best option due to its NSF listing, powerful pump, and the sheer size of its vacuum chamber. It’s the largest of the countertop vacuum sealers in...