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Use a knife to cut the pan of rice crispy treats before you store them. This will help each piece to freeze evenly and make it easier to pull out individual treats once they’re frozen. If you use a container, fill it up layer by layer with the treats, then seal the top. Freezer bags are a great alternative for when you can’t find the right size of container or don’t want to leave your containers in long-term storage. Simply fill a freezer bag with 1 or 2 layers of treats, press out any extra air, and seal it up tight.  If you’re using a container, look for one made of either plastic or glass pyrex to store your squares. Try to find the right size of container that won’t leave too much extra space at the top. Eliminating extra air will help keep the treats fresher for a longer amount of time. This will help prevent the rice crispy treats from sticking and bonding. Measure your container or freezer bag, then cut the wax paper to about the same size. This will make stacking and sealing much easier. To help you keep track of the treats’ freshness, make sure to place a piece of tape on the top of the container and write down today’s date. These labels will help you easily determine whether or not the treats are edible when you find them in your freezer later. Up until 6 weeks, you can keep enjoying these sweet treats. After 6 weeks, the treats will likely lose most of their moisture and turn rock-hard. If you see any containers with a date label from more than 6 weeks ago, just throw away the old rice crispy treats. To eat a frozen rice crispy treat, take it out of the freezer and let it sit at room temperature for 15 minutes before eating or serving. This thawing period will bring back some of the rice crispy treat’s original softness and gooeyness.

Summary:
Cut the rice crispy treats into even squares. Place the squares in an airtight container or freezer bag. Lay a piece of wax paper between each layer of treats. Use a piece of tape to mark the date on the container. Place the container in the freezer and keep the treats for up to 6 weeks. Let the frozen treats thaw for 15 minutes before eating.