The dumplings bought in the supermarket or processed can be boiled for about ten minutes. Use semi-hot water directly, then put the dumplings directly in and cook for ten minutes.

Don't cook the frozen zongzi directly in the boiler, use a pot of cold water until the zongzi is completely thawed, and then cook it in the boiler, so it will be cooked in 15 minutes. If you cook it directly in the pot, it will be ice bumps inside and high temperature outside, so it is easy to be caught.

When buying zongzi, try to choose to buy it from regular channels. Because the sharp corner of zongzi is easy to pierce the soft packaging material, once it is damaged, it will easily cause bacteria to invade and lead to the deterioration of zongzi.

Therefore, when selecting zongzi, it is necessary to "smell it and look at it twice". First, smell whether the zongzi has peculiar smell, and the zongzi with strong fragrance has better flavor when eaten. Then, check whether the vacuum-packed zongzi, plastic bag or aluminum foil bag are in good condition, and pay attention to whether the packaging bag is damaged, leaked or swollen. In addition, we should also pay attention to whether the outer packaging of zongzi has clearly printed factory name, address, production date and shelf life, and try to choose products with close factory time.