How do you usually find a quality ingredient supplier?

If you don't have much experience, you should prioritize big brands with good reputation; secondly, you should introduce your trusted partners; and lastly, you should introduce your friends and relatives. I have a good platform here, called the China Electricity Ingredients Festival, not only have the landing of the exhibition can go to see in detail, you can also use their small program "easy to find ingredients" to find a good supplier of ingredients.