1. Soak zongzi in water a little, and then put it on the heating plate of the microwave oven to heat it directly, which will taste better. 2. It's best to heat zongzi with a fresh-keeping food bag suitable for microwave oven. Take a fresh bag, put it in zongzi, screw on the bag mouth, leave a small hole for air, and then put it in the microwave oven for one minute. 3. You can also peel off the leaves of Zongzi first, and then put them in the microwave oven for heating. Pay attention to cover or cover the plastic wrap for microwave heating. 4. Or pour a small amount of boiling water into a special steamer for microwave oven, then put zongzi into the steamer, put the steamer into the microwave oven, and heat it for 3 to 5 minutes. After hearing the beep of the microwave oven, the zongzi became hot. 5, heating time should not be too long. Basically, small dumplings can be heated for 30 seconds to one minute with high fire, and large dumplings can be heated for two or three minutes. Over time, zongzi will harden. 6. jiaozi that can't be eaten can be put in the freezer of the refrigerator. When the jiaozi taken out of the freezer is heated, it should be heated by microwave defrosting to make it uniform inside and outside.