1. Three times of water method: Boil the water to make glutinous rice balls, wait for the water to boil again, then pour in a bowl of cold water; cover the pot, wait for the water to boil, and pour in another bowl of cold water; Then repeat it again; when the three bowls of water boil, the glutinous rice balls will be cooked.

2. Check whether the glutinous rice balls have become bigger. The glutinous rice balls will usually double in size after they are cooked.

3. Check whether the glutinous rice balls float on the water; if the glutinous rice balls still sink to the bottom, they are definitely not cooked.

4. The simplest and most direct method is to take one out and have a taste.