Yes, lactic acid does expire.
Lactic acid, when stored properly in its original packaging, has a guaranteed shelf life. According to the reference provided, lactic acid grades have a shelf life of 3 years from the production date. This guarantee is contingent upon adherence to specific storage conditions:
- Recommended Storage Temperature: 5 – 30 °C
- Pallet Stacking: Avoid triple stacking pallets.
Therefore, while lactic acid has a considerable shelf life, it's important to adhere to the recommended storage conditions to ensure its quality remains intact for the full 3 years. Using lactic acid past its expiration date or if it has been improperly stored could lead to unpredictable results or reduced effectiveness.
