*Citric Acid*
*Citric acid* `C6H8O7` is a natural acid found in citrus fruits like lemons, limes, and oranges. It’s also made industrially and used everywhere because it’s safe, cheap, and does 3 things really well: _adds sourness, preserves, and cleans_.
# *Main Uses*
# *1. Food & Drinks*
- *Flavor & sourness*: Soda, candy, fruit juices, ice cream, yogurt. That "tangy" taste.
- *Preservative*: E330 - Stops bacteria and browning. Used in canned fruits, jams, sauces.
- *pH control*: Keeps food from spoiling and balances acidity.
- *Antioxidant*: Stops fats/oils from going rancid.