Centennial: This suggestion is to store more grain, and it is not recommended to sell it at ordinary times, because there is no good price, and we can wait until those activities that require physical strength (Lantern Festival, Teacher's Day and other activities are more popular on holidays), which can not only sell well, but also sell well!
Carrot soup and green radish soup: These two recipes are popular and just needed. I can't buy it if I want to. There is a great demand! But because it is just needed, there are many people who do it, and they can only protect their profits!
So I still suggest: be a centenarian and don't buy it at ordinary times. When everyone concentrates on demand, sell it, so as to earn more! Note: Some others are also possible, such as Xianyin, Jinlu and so on!