The usage of gear 1 and gear 2 of the Zwilling pressure cooker is as follows:

1. The first gear is the low pressure gear with a smaller pressure value. It is generally used for cooking food that is easy to cook and rotten, such as Some ripe fruits, vegetables, beans, etc.

2. The second gear is the high-pressure gear with a larger pressure value. It is generally used for cooking foods that are difficult to cook, such as meat, poultry, etc.