Generally speaking, corn can be cooked in about 15-20 minutes, depending on the type of corn and the cooking equipment:

1. Cook fresh corn and put it in cold water for 20 minutes. Because fresh corn itself contains more water, the relative cooking time is shorter. In order to ensure thorough cooking, it is recommended to cook in cold water for 20 minutes.

2. Cook the fruits and corn and put them in cold water for 15 minutes. Because fruit corn is usually smaller, has higher sugar content and is easier to cook. Generally, boiling in cold water 15 minutes is enough.