How To Freeze Swiss Chard Without Blanching
Freezing Swiss chard without blanching is an easier and faster option. The drawback is it won't keep as long in the freezer and will lose its flavor more quickly. It should be used within 1.5 months of freezing.
Pack the clean Swiss chard leaves into a freezer bag.
Put the Swiss chard stems into another freezer bag.
Press the air out of the freezer bags and seal the bags.
Straw "vacuum seal" trick (optional): Slide a straw into the bag and suck out the air so the bag "shrinks" around the Swiss chard. Slide the bag down the straw as you inhale, and quickly seal the bag while you remove the straw.
Write today's date and the amount of Swiss chard in each bag on a freezer label. Stick the label to its respective bag, and place the bags in the back of your freezer.