1, wholesale food markets: you can go to the local wholesale food markets, such as farmers markets, wholesale markets, etc. These markets have a special wholesale food and oil area, the supply of varieties is more comprehensive, the price is also more affordable.

2, food and oil wholesalers: you can contact the food and oil wholesalers through the network or yellow pages and other ways, directly from the wholesalers to buy.

3, directly from the manufacturer: the scale of operation is large, you can consider directly from the grain and oil manufacturers.