1. If it is cooked zongzi, it can be heated in the microwave oven for 3-5 minutes.

2. If it is raw zongzi, it usually needs to be cooked in an ordinary pot for 2-3 hours. If it is just taken out of the refrigerator, it is not recommended to eat it immediately. Because this kind of zongzi has not been heated, its taste becomes worse, which will also increase the burden on the stomach. So it's best to take it out and heat it sufficiently to make it soft before eating.

If you eat zongzi on an empty stomach, glutinous rice will stay in your stomach for a long time, stimulating gastric acid secretion, which may lead to the recurrence of patients with chronic gastritis and esophagitis. You can put raw zongzi in a fresh-keeping bag, seal it, and put it in the refrigerator for frozen preservation. Before taking out the frozen zongzi, heat it thoroughly. Don't heat the leftover zongzi repeatedly. Don't eat sour, bitter or bad-tasting zongzi.