Guide pratique pour conserver les légumes sous vide et prolonger leur fraîcheur - Ma Poule Express

Practical guide to vacuum-packing vegetables and prolonging their freshness

In the quest for a healthy and sustainable diet, the preservation of vegetables plays a crucial role. One of the most effective methods for prolonging the freshness of vegetables is vacuum packaging. This simple and practical technique helps preserve the nutrients, flavor and texture of vegetables for longer, while reducing food waste. Here is a detailed guide to help you vacuum-pack your vegetables and maximize their freshness.

Why choose vacuum packaging to preserve vegetables?

Vacuum sealing is a preservation method that involves removing the air around food before sealing it airtight in a bag or container. This absence of oxygen slows down the process of food deterioration, which helps extend its shelf life. Here are some advantages of vacuum sealing to preserve vegetables:

  1. Extends shelf life: Vacuum-sealed vegetables can be kept up to three to five times longer than if preserved in the traditional way.

  2. Preserves freshness and nutrients: By removing oxygen, vacuum sealing preserves the color, texture and nutrients of vegetables, making them tastier and healthier.

  3. Reduces food waste: By extending the shelf life of vegetables, vacuum packaging helps reduce food waste by preventing food from spoiling too quickly.

Steps to preserve vegetables sous vide:

  1. Preparing the vegetables: Start by washing, peeling and cutting the vegetables according to your preferences. Make sure they are completely dry before vacuum-packing them to avoid any mold.

  2. Choice of bag or container: Use bags or containers specially designed for food vacuuming. Make sure they are compatible with your vacuum sealer.

  3. Vacuum sealing: Place the prepared vegetables in the bag or container, leaving free space at the top to allow airtight sealing. Use your vacuum sealer to suck the air out of the bag or container and seal tightly.

  4. Storage: Once the vegetables are vacuum sealed, store them in the refrigerator or freezer, depending on your needs. Fresh vegetables can be stored in the refrigerator for several weeks, while frozen vegetables can last for several months.

Steps to Seal Mason Jars:

Materials needed:

  • Mason jars with lids and rings
  • Foods to preserve (fruits, vegetables, jams, etc.)
  • A large pot or saucepan
  • A funnel
  • A clean cloth
  • Tweezers
  • A bowl or container for hot water

Steps to Seal Mason Jars:

1. Prepare your food: Make sure your food is clean and prepared according to the correct recipe for canning.

2. Prepare the lids: Mason jar lids must be sterilized beforehand. Boil them in a pot of water for a few minutes to kill bacteria. Keep them in hot water until you are ready to use them.

3. Fill the jars: Use a funnel to fill the mason jars with your prepared food. Make sure not to exceed the recommended line to avoid overflow during the sealing process.

4. Wipe the rims of the jars: Use a clean dish towel to carefully wipe the rims of the jars to remove any residue or debris. Make sure the edges are dry and clean to get an airtight seal.

5. Place the lids and rings: Using tweezers, remove the lids from the bowl of hot water and immediately place them on the filled jars. Screw the metal rings onto the lids to secure them firmly in place.

6. Sterilize sealed jars: Place sealed jars in a pot or saucepan filled with hot water, making sure they are completely submerged. Bring the water to a boil and boil for the recommended time for the type of food you are storing.

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