Method 1: stir-fry: stir-fry bitter gourd and pepper together to relieve bitterness. Method 2: Pickling: Sprinkle the cut wax gourd with salt and marinate for a while, then stir-fry it to reduce the bitterness. Method 3: blanching in water: cut the bitter gourd into pieces and cook it in water, then soak it in cold water. However, although the bitterness can be eliminated, the flavor of bitter gourd is lost. Method 4: Shui Piao: Cut the bitter gourd, remove the seeds, cut it into shreds, then rinse it with cold water, gently rub it with your hands while washing it, wash it for a while, then change the water and wash it again, so rinse it three or four times repeatedly, and the bitter juice will be lost with the water. Method 5: Put the cut wax gourd in the refrigerator and cool it thoroughly, then dip it in honey to eat, which can not only reduce the bitterness, but also maintain the nutrients.