Yes, you can use plastic containers for freezing food, but it's important to choose the right type. Opt for containers labeled as microwave-safe, freezer-safe, or BPA-free. Avoid using containers that become brittle or warp at low temperatures as they may crack or leak. Always leave a little space in the container for expansion to prevent breakage. It's also recommended to transfer frozen food to airtight containers or glass for longer-term storage to maintain food quality and safety.