Here's a quick video demonstrating how to clean and blanch green beans. After the green beans are prepared, their ready to be finished using a high-heat, secondary cooking technique such as sauteing, frying and roasting.
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Actually, blanching can
Actually, blanching can extend the refrigerator life on many vegetables since it kills surface bacteria and deactivates enzymes that are responsible for breaking down the vegetable itself. Depending upon how fresh the vegetable was when you bought it, blanched vegetables can last anywhere from 3-7 days.
To store, make sure that the vegetables are thoroughly dried of surface moisture by sandwiching them in-between paper towels. Place in an airtight container and store in a moderately cool place in your refrigerator.