Answer
Nov 10, 2025 - 04:51 PM
Yes, 35% food-grade hydrogen peroxide can degrade over time, especially if not stored properly. It should be kept in a cool, dark place in a tightly sealed container to minimize exposure to light, heat, and air, which can accelerate its decomposition into water and oxygen. Regularly checking its effectiveness by observing its fizzing action or consulting its expiration date is recommended.
