A lot of products can keep the supply at a low price, and the field of agricultural products is the development foundation and strategic highland of a lot of products, so most of the things sold are very cheap, including the juice you mentioned.
Now Pinduoduo, as a large shopping platform, can use WeChat payment at the same time, which is convenient for most people. Based on the long-term subsidy of such a platform, consumers can easily catch the wool of the platform.