I want to make dumplings in various colors, but there is no juicer at home, so I can boil water with spinach. If you cook spinach until it is rotten, you can get green dough. However, this kind of vegetable water is cooked for too long, which destroys the nutrition of vegetables and just pursues color. You can also boil amaranth water, mix the noodles with amaranth water to make the noodles turn red, or you can use steamed pumpkins, peel them and knead them together into dough. This pumpkin and noodles are orange and will not destroy the nutrition of the vegetables themselves. It is best to have a juicer, so that when using some vegetable colors and noodles, the destruction of nutrition can be reduced.