Sofia Martinez
Vacuum sealing is a versatile home storage solution for food preservation and packing. It prolongs the shelf life of stored items by removing oxygen that breaks down food over time. There are several methods to vacuum seal containers, including using a vacuum sealer, a tub of water, a plastic straw, or a vacuum chamber. Vacuum sealers can be used to create bags of varying sizes, while tubs of water and plastic straws provide DIY options for removing air from containers. Vacuum chambers are suitable for sealing ordinary airtight plastic containers, but care must be taken to avoid damaging the containers or compromising the seal.
Characteristics and Values of Vacuum Sealing Plastic Containers
| Characteristics | Values |
|---|---|
| Vacuum Sealing Method | Use a vacuum sealer, a tub of water, or a plastic straw |
| Vacuum Sealer Types | Hand pump, electric sealer, or oxygen absorbers |
| Container Types | Glass or plastic containers with valves or rubber seals |
| Container Characteristics | Hard plastic may crack or implode; softer lids seal better |
| Vacuum Level | Close to 15 PSI is preferable |
| Food Types | Dry goods, liquids, or fresh/marinated food |
| Food Storage | Prolongs storage life by eliminating oxygen |
| Food Safety | Do not use dry canning or oven canning methods |
| Sealing Technique | Heat sealing, ultrasonic welding, or melting plastic |
| Opening Vacuum Seal | Increase temperature of contents or leave at room temperature |
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What You'll Learn
Using a vacuum sealer machine
Vacuum sealing is a versatile home storage solution that can help you with meal prep, portion control, preservation, and packing. Vacuum sealing can also be used to marinate quickly and prepare food for sous vide cooking.
There are two main types of vacuum sealers: countertop and handheld. Countertop vacuum sealers have more functionality, while handheld sealers are smaller, portable, and cordless. Vacuum seal bags are pre-cut in specific sizes, and some have zipper functionality. Rolls, on the other hand, allow you to create custom sizes, which is helpful for sealing large portions or reducing bag waste when saving small items.
- Prepare the item you wish to vacuum seal. For food items, this may involve cutting them into appropriate sizes or portions.
- Place the item inside the vacuum sealer bag. If using rolls, you may need to cut the bag to size and heat seal three sides of the bag, leaving one side open for packing.
- Lock the bag into the sealer. Make sure the opening of the bag is positioned at the vacuum mouth. Close the sealer lid and listen for a click to ensure it is locked.
- Press the "Vacuum Seal" button to activate the appliance and compress the bag. Some machines may have separate buttons for vacuuming and sealing, so refer to your user manual for specific instructions.
- Once the air is removed from the bag, the machine will automatically seal it.
- Open the sealer lid and remove your vacuum-sealed item.
- Label your bags or containers with their contents and date.
Some vacuum sealers are compatible with accessories like jar sealers and bottle stoppers, allowing you to vacuum seal various containers. You can also use a vacuum sealer to marinate foods quickly. Simply place the food in a bag, seal it, and let it sit for a few minutes. The vacuum-sealed environment will help the marinade penetrate the food faster.
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Using a tub of water
Vacuum sealing is a versatile home storage solution. It can be used for meal prep, portion control, preservation, and packing. If you don't have a vacuum sealer at home, a tub of water can be a good substitute. Here's how to vacuum seal a plastic container using a tub of water:
Firstly, place the item you want to store in a ziplock bag. It is recommended to arrange the contents in an even layer, rather than bunched up in a ball, as this helps the contents freeze and thaw more quickly. Close the ziplock seal, but leave about an inch (two to three centimetres) from one edge unsealed.
Then, submerge the bag in a large pot of water, ensuring that only the unsealed corner is sticking out. The water pressure will force the air out of the ziplock bag. Once most of the air has been forced out of the bag, pinch the corner closed. When you lift the bag out of the water, the sides of the plastic should be moulded to the contents.
If the bag seems loose or like there is still a lot of air inside, check the seal and repeat the previous steps. Once sealed, lay the bag on a towel to dry. The item is now ready to be frozen, stored, or cooked sous vide.
It is important to note that this method is not suitable for liquids or liquidy foods, such as chicken stock or beans in their cooking broth. For these types of contents, a slightly different approach is required.
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Using a plastic straw
Vacuum sealing is a versatile home storage solution. It is possible to vacuum seal plastic containers without a vacuum sealer by using a plastic straw. Here is a step-by-step guide on how to do it:
Firstly, prepare the item you wish to vacuum seal. For example, if you are sealing food, you may wish to season it or pat it dry before placing it in the container. If you are sealing clothes, fold them neatly to minimise wrinkles and maximise space.
Next, place the item inside a suitable plastic container. It is important to use a heavy-duty plastic container with a resealable zip or seal to ensure durability and airtightness. Make sure there is enough space in the container for the item, as well as some extra room for air removal.
Once the item is in the container, seal the container almost entirely, but leave a small opening for the straw. Insert the straw into this opening, ensuring it reaches towards the bottom of the container. This will allow you to suck out the maximum amount of air.
With the straw in place, gently inhale to suck out the excess air from the container. Continue until you see the container collapse around the item inside. While still maintaining suction, slowly remove the straw and quickly seal the rest of the container.
You can use sealing tape over the opening for added security. This method is a great way to achieve a vacuum seal without any specialised equipment. It is simple, effective, and can be used for a variety of items, including food and clothing.
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Vacuum sealing jars
To vacuum seal a jar, start by filling a clean, dry Mason jar with the food you want to store, leaving about an inch of space at the top. Then, place a standard Mason jar lid (without the metal ring) on top of the jar. Ensure that the lid has a rubber ring inside, as this is essential for vacuum sealing. Next, attach the jar sealer and connect it to your vacuum sealer. Finally, press the vacuum button on your sealer to remove the air and create a secure seal.
There are various vacuum sealing products available on the market, such as the FoodSaver Jar Sealing Kit, which is compatible with the V5800 series. Other options include the LOVE MOMENT Electric Mason Jar Vacuum Sealer Kit, which is suitable for both wide-mouth and regular-mouth Mason jars.
It is important to note that vacuum sealing jars with plastic lids is not effective, as plastic lids do not have the necessary rubber seal. Additionally, filling a jar with steaming hot food and then vacuum sealing it is not recommended as it does not create a safe environment within the jar.
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Vacuum sealing with plastic sheets
Vacuum sealing is a versatile home storage solution for meal prep, portion control, preservation, and packing. Vacuum sealing is also used for storing non-food items.
If you don't have a vacuum sealer at home, you can use a DIY option like a tub of water or a plastic straw. For example, you can place the item you want to store in a ziplock bag, seal the bag, leaving a corner unsealed, and submerge the bag in a large pot of water until only the unsealed corner is exposed. The water will force most of the air out of the ziplock bag, and you can then pinch the corner closed. Alternatively, you can place a straw into the ziplock bag, seal the bag, leaving only room for the straw, and suck the air out of the bag through the straw.
If you want to use plastic sheets to create your own vacuum bags, you can place two equally sized plastic sheets on top of each other and use a vacuum sealer to heat seal the sheets' edges together. You can also use a hair curling/straightening iron to melt the plastic sheets into a sealed state. Repeat the process to create heat seals on three sides, leaving one side open for you to pack the item you want to vacuum seal.
Once you have sealed three sides, lock the bag into the sealer and press the vacuum seal button. Open the sealer lid, position the bag's opening at the vacuum mouth, then close the sealer lid. Once it's locked, press the vacuum seal button to activate the appliance and compress the bag.
It is important to note that regular plastic or poly bags will not work for vacuum sealing. Oxygen barrier bags, which are commonly used for food packaging, are recommended as they prevent oxygen and other air molecules from entering or exiting the bag.
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Frequently asked questions
Vacuum sealing plastic containers can help to keep food fresh for longer by limiting food spoilage and locking in flavour and nutrients.
Containers with softer lids are better suited to vacuum sealing. Harder plastic may crack or implode under too much pressure.
The best way to vacuum seal a plastic container is to use a vacuum sealer. Place the item inside the container, leaving enough room for air removal and sealing. Then, insert the container into the vacuum sealer, ensuring the open end of the bag is in the middle of the liquid catch. Once the lid is closed, a vacuum will form and remove the air from the container.
Yes, you can use a tub of water or a plastic straw as a DIY alternative. Place the item inside a ziplock bag and seal it, leaving one edge unsealed. Submerge the bag in a tub of water until only the unsealed corner is above the water. Pinch the corner closed when the water forces the air out of the bag. Alternatively, suck the air out of the bag through a straw.
Check the manual that came with your vacuum sealer to ensure you are using it correctly. If it is still not working, contact the manufacturer or the store where you purchased the product.
