If you don’t have a large enough zip bag, you can use a plastic shopping bag and wrap the ends loosely around itself. You can also trim the mint to fit.
This method works well with mint bought from the store or with freshly clipped mint from a plant. You do not need to rinse the mint before you do this. Ideally, you should wait until you are ready to cook it. If you have washed the mint, however, pat it dry before storing to keep it from rotting too quickly.
If you are using a tall plastic container with a lid, you can use the lid instead of a bag. Just make sure that the lid does not crush the leaves. If the bag is loose around the bottom of the jar, use a rubber band to secure it in place.
You may notice new roots coming of out the stems. This is normal.
You can also use a cookie sheet or casserole pan for this. Generally, you should not wash the mint before you store it. If you do, pat it dry completely with paper towels. Extra water can cause it to freeze improperly.
You can use a plastic food storage container if it is marked for freezer use. That said, you may not be able to get rid of all of the air in the container, and the mint might not fit as well into the container.
You do not need to defrost or thaw mint before using it in recipes.
Mint that has freezer burn or appears discolored should not be used. Toss the mint out if it looks bad.
You can wash the the mint beforehand if you would like, but for this method, it does not make much of a difference either way.
Do not place the ice cube tray with mint under a faucet. The stream of water might fill the trays too quickly and flood the mint out of the tray.
If your tray has a cover, you may want to cover the mint to prevent contamination. Throw out the mint if it is discolored. Since this may be difficult to notice with an ice cube, you should never keep mint cubes past 6 months.
The water from the ice will rinse the mint for you, so you do not need to do any additional washing.
