1. About 10 minutes.

2. Method: Pinch off the ends of the beans and clean them, soak them in light salt water, wash them twice and cut them into sections. Pour the beans into a bowl, add flour and stir until each beans are covered with flour. If the beans are too dry, add less water. Put the beans coated in flour into a small steamer and steam over high heat for about 10 minutes. Make garlic juice, mash the garlic into minced garlic, add vinegar, light soy sauce and sesame oil and mix thoroughly, add crushed red pepper. Take out the beans and dip them in garlic juice when eating.