Disadvantages of Vacuum-Sealing Food

In an age where convenience and longevity are prized in our kitchens, vacuum sealing has emerged as a popular technique for food preservation.

This innovative technology, which removes air from food packaging to extend its shelf life, has undoubtedly revolutionized the way we store and protect our edibles.

While vacuum sealing offers numerous advantages, such as reducing food waste and aiding in long-term storage, it is essential to recognize that it is not without its drawbacks.

This article delves into the disadvantages of vacuum sealing food, shedding light on aspects that often go unnoticed amid the allure of this preservation technique.

Understanding these limitations will help you make informed choices when it comes to preserving their edibles and maintaining the quality of their meals.

So, buckle up yourself and let’s unravel some major disadvantages of vacuum-sealing food.

Why do people vacuum seal food?

People vacuum seal food for several practical reasons, as vacuum sealing provides numerous benefits for food preservation and storage:

  • Extended Shelf Life: Vacuum sealing removes air from the packaging, which inhibits the growth of spoilage-causing bacteria and fungi. This, in turn, extends the shelf life of the sealed food items.
  • Reduced Food Waste: By preventing air and moisture from reaching the food, vacuum sealing helps prevent premature spoilage and food deterioration. This means less food is wasted due to spoilage or freezer burn.
  • Maintains Food Quality: Vacuum sealing preserves the freshness, flavor, and texture of food. It prevents the oxidation and freezer burn that can occur when food is exposed to air, maintaining the quality of both fresh and cooked items.
  • Convenience: Another main reason is convenience. Vacuum-sealed packages are typically compact and easy to stack or store in the freezer, refrigerator, or pantry. This makes it easier to organize and manage food inventory.
  • Protection Against Contaminants: Vacuum sealing creates a barrier that protects food from contaminants such as dust, moisture, and pests. This is particularly advantageous for long-term storage and safeguarding items in disaster preparedness kits.
  • Space Efficiency: Vacuum-sealed packages take up less space in the freezer or pantry compared to traditional storage containers, allowing for more efficient use of available storage areas.
  • Vacation and Travel: Vacuum-sealed bags can be used to pack and preserve food for vacations or camping trips, helping to keep food fresh for longer periods without the need for refrigeration.

Vacuum sealing and health risks

There are some health issues linked to vacuum sealing your food, especially if you are not careful about what you seal.

Some foods, like meats, can go bad quickly if they are not properly sealed. If you do not seal your food correctly, you can end up with bacteria or mould growing on it.

This will cause different health issues, as bacteria are the major cause of many diseases and they can cause normal fever to diarrhea.

Another health concern of vacuum sealing is that it can make your food taste different. Some people say that their food tastes bland after it has been vacuum-sealed.

This is because the air has been removed from the food, which can change the way it tastes. And it causes the removal of many essential nutrients from the food, which can cause your health to go down.

The non-consumption of required vitamins and nutrients for a long time may cause weight loss, a weak immune system, and anaemia.

Finally, vacuum sealing your food can be expensive for a daily routine procedure. You will need to buy a vacuum sealer and special bags or containers to store your food in. And have to take extra nutrients to balance your diet.

What are the disadvantages of vacuum-sealing food?

There are a few disadvantages to vacuum-sealing food. Like, it can be difficult to do if you don’t have the right equipment. And it can cause the food to lose some of its flavours. Some more are listed as:

1- Expensive method:

One disadvantage is that it can be more expensive than other methods of storage. Vacuum sealers and bags can be costly, and you may need to replace them more often than you would with other storage methods.

2-Need of special bags 

One disadvantage of vacuum sealing food is the need for special bags. Unlike traditional food storage methods that use regular containers or bags, vacuum sealing requires specific bags designed to withstand the pressure and removal of air. These specialized bags can be more expensive compared to regular storage options. Moreover, the need for special bags can be an inconvenience, as it requires ensuring an adequate supply of these bags and the potential for running out or not having the right size on hand when needed

3- Difficult to analyse:

Another disadvantage of vacuum sealing your food is that it can make it difficult to tell when food has gone bad. If you don’t examine your sealed food regularly, it can be hard to tell if it has gone bad until you open the bag and find out. This can lead to wasted food and money.

4- Food can lose flavour:

Additionally, some food tends to absorb odours from the plastic bags that you vacuum seal them in. This can cause the food to lose some of its flavours.

It can lose its texture, taste, and smell over time. The longer your food is sealed, the more its nutritional value may decrease. This is especially true for fruits and vegetables.

5- Not for low water content food:

Vacuum sealing is often recommended for food that is high in water content, but some foods that are high in water can actually be a detriment to the vacuum seal.

For example, lettuce, tomatoes, and other such produce can actually wilt in the vacuum seal and become less appetising.

6- Food can become unhealthy:

Some foods like cheese or milk can begin to turn into a solid form if they kept sealed for longer. You can also find mold or rot in the bags after a few weeks. So, you will have to keep track of when you sealed the bags.

7-Can’t seal liquids effectively 

One notable disadvantage of vacuum sealing is its inability to effectively seal liquids. Liquids have a tendency to get sucked out of the bag during the vacuum sealing process, resulting in incomplete seals or messy leaks. This limitation restricts the types of food items that can be effectively vacuum sealed, particularly liquid-based or saucy dishes.

8-Plastic poisoning  

Plastic poisoning is also a big concern associated with vacuum sealing foods. When using plastic bags or containers for vacuum sealing, there is a possibility of harmful chemicals leaching into the food over time. This can occur due to the interaction between the plastic material and the vacuum sealing process, especially when exposed to heat. These chemicals (such as BPA) on ingestion can cause harmful effects on human health.

9-Anaerobic bacterial growth 

Another drawback of vacuum sealing is anaerobic bacterial growth. Vacuum sealing removes the oxygen from the packaging, creating an ideal environment for certain types of bacteria to thrive. Without oxygen, these anaerobic bacteria can multiply and produce toxins that may pose a health risk if consumed.

10-Not great for delicate foods 

Vacuum sealing is not an ideal method for delicate foods. The pressure created during the vacuum sealing process can potentially crush or deform delicate and soft foods, altering their texture and appearance.

11-Food still spoil over time 

While vacuum sealing is an effective method for preserving food by removing air and creating a tightly sealed environment, it’s not foolproof. Despite its benefits, some foods can still spoil over time even when vacuum sealed.

12-Time consuming process

Lastly, vacuum sealing is a time consuming process. It requires careful preparation, such as properly portioning and arranging the food items, placing them in the bags or containers, and operating the vacuum sealing machine, which takes a significant amount of time.

Also the sealing process itself is slow and time taking. This time investment may be inconvenient for those seeking quick and efficient food storage solutions.

How to minimise the disadvantages of vacuum sealing food?

Here are a few simple ways to minimise the disadvantages of vacuum sealing;

  • Proper Handling: Ensure that the food being vacuum-sealed is fresh, clean, and free from spoilage before sealing. Proper washing and handling are crucial to minimize the risk of botulism.
  • Safe Temperatures: Refrigerate or freeze vacuum-sealed packages promptly to inhibit bacterial growth. Avoid leaving vacuum-sealed food at room temperature for extended periods.
  • Food Moisture: Dry food items thoroughly before vacuum sealing to prevent mold growth. Moisture can compromise the seal and food quality.
  • Cleaning and Sanitizing: Clean and sanitize vacuum-sealing equipment thoroughly between uses to prevent cross-contamination.
  • Packaging Inspection: Always inspect vacuum-sealed packages for signs of damage or compromised seals before consumption.
  • Allergen Awareness: Be mindful of allergen cross-contact when vacuum sealing different foods together. Separate allergenic items to prevent contamination.
  • Airtight Bags: Use high-quality vacuum-sealer bags or rolls compatible with your machine to ensure a proper seal.
  • Portion Control: Make small portions of food before sealing to make it easier to access and use later, minimizing waste.

Alternatives to vacuum sealing

Several alternatives to vacuum sealing exist for preserving food, each with its own advantages. Here are some popular alternatives that you can try instead of vacuuming food:

1. Freezer Bags: Freezer bags are a common and cost-effective choice for food storage. These plastic bags are designed to resist moisture and prevent freezer burn. You can manually remove excess air from the bag before sealing it, but they don’t provide the same level of air removal as vacuum sealing.

2. Glass Containers: Glass containers with airtight lids are an excellent option for storing both dry and wet foods. They are reusable, environmentally friendly, and keep food fresh. However, they may take up more space in the freezer or pantry compared to vacuum-sealed bags.

3. Mylar Bags: Mylar bags, also known as foil bags, are a popular choice for long-term food storage, especially for items like dried grains, rice, beans, and dehydrated foods. They are highly resistant to moisture, oxygen, and light, which helps preserve food quality. Mylar bags can be sealed using heat or by using a standard household iron. To remove air before sealing, some people use oxygen absorbers or a straw to suck out the air from the bag before sealing.

4. Canning: Canning is an excellent method for preserving fruits, vegetables, sauces, and more. It involves heating food in jars to kill bacteria and sealing them with airtight lids. This process creates a vacuum seal as the contents cool, ensuring long-term storage without the need for refrigeration.

Tips for better vacuum sealing foods 

Here are some concise tips for better vacuum sealing of foods;

  • Moisture can hinder the sealing process, so make sure food items are as dry as possible before sealing.
  • Use quality vacuum-sealer bags or rolls designed for your machine to ensure a proper seal.
  • Leave some space (a few inches) between the food and the top of the bag to allow for a good seal.
  • Don’t overfill bags; leave room for air to be removed without pushing against the seal.
  • Freeze liquids or moist items for a short time before sealing to prevent them from being sucked into the vacuum pump.
  • Refrigerate or chill items before vacuum sealing to reduce the risk of condensation.
  • Place a cutting board or flat surface under the bag to support it during the sealing process.
  • Ensure there are no food particles or liquids on the seal area of the bag or machine.
  • For added security, some recommend double-sealing bags to ensure a tight closure.
  • Always label bags with contents and date to keep track of freshness.
  • Portion items before sealing to make it easier to access and use later.
  • After sealing, store items according to recommended temperatures (refrigerate or freeze).


What foods should not be vacuum sealed?

Foods that should not be vacuum sealed include soft or delicate items like fresh berries, crisp lettuce, or fluffy bread, as they can be easily crushed or deformed. Additionally, highly perishable foods with a high moisture content, such as raw mushrooms, garlic, or raw onions, are not ideal for vacuum sealing due to the risk of anaerobic bacterial growth.

How to vacuum seal foods effectively?

Ensure the food is properly prepared and portioned.
Place the food in a suitable vacuum sealing bag or container, leaving enough space for the seal.
Use a vacuum sealing machine to remove the air from the bag or container and create a tight seal.
Store the vacuum-sealed food in a cool, dry place, or freeze it if needed, to maintain its quality and extend its shelf life.

How long does vacuum sealed foods last?

Vacuum sealed foods can last significantly longer than traditional storage methods, typically extending their shelf life by 3 to 5 times. Depending on the type of food, proper vacuum sealing, and storage conditions, vacuum sealed foods can typically last anywhere from 1 to 3 years in the freezer and 1 to 2 weeks in the refrigerator.

How to prevent botulism when vacuum sealing?

To prevent botulism when vacuum sealing food, it is essential to follow proper food safety guidelines which includes ensuring that the food is cooked thoroughly before vacuum sealing, maintaining appropriate storage temperatures, and refrigerating or freezing vacuum-sealed perishable foods promptly.

Should you freeze foods before vacuum sealing?

Yes, it is generally recommended to freeze foods before vacuum sealing them. Freezing the food first helps preserve its quality and reduces the risk of bacterial growth. Vacuum sealing frozen foods also helps prevent freezer burn and extends their shelf life.


Vacuum sealing food is a versatile and effective method for extending shelf life, reducing food waste, and preserving freshness. However, it’s crucial to be aware of its potential disadvantages.

By following proper food handling, storage, and sealing techniques, these drawbacks can be minimized, allowing you to enjoy the benefits of vacuum sealing while ensuring food safety and quality.

Have you ever used a vacuum sealer? If so, what was your experience like? Did you ever end up consuming food that was vacuum sealed? If so, did you notice any negative effects? Please share your thoughts in the comments below.

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