how do sweet makers make sour sweets sour?

Question: how do sweet makers make sour sweets sour?
- Keywords:
  chemistry,
  food,
  taste
Asked by ava and hibba!! on 23 Jan 2025.
- David Bremner answered on 23 Jan 2025:
  
  I think it’s by using ingredients like Citric acid, Malic acid, Fumaric Acid, Tartaric acid, Lactic acid either individually or in combination within the sweet or as a coating on the outside of the sweet. Next time you have one and see if any of those ingredients appear on the list.

Question: how do sweet makers make sour sweets sour?