Unopened bottles
Each SpraySafe bottle displays a maximum effectiveness date on the label. For best results, we recommend opening the bottle by this date. When stored as directed (below 25°C and away from direct sunlight), the product maintains maximum effectiveness until then.
After opening
Once opened, SpraySafe should be used within 3 months to ensure optimal effectiveness. Opening the bottle exposes the solution to air and environmental conditions, which can gradually reduce the stability of hypochlorous acid (HOCl), regardless of the printed date.
Why storage and timing matter
Hypochlorous acid is a naturally occurring, highly effective molecule, but it is sensitive to heat, air, and UV exposure. Over time, particularly at temperatures above 25°C, the solution gradually neutralises as pH levels stabilise, reducing effectiveness.
SpraySafe is manufactured in small batches in New Zealand and shipped to Australia to minimise storage time prior to use and maintain product quality, without relying on increased concentrations or harsh stabilisers to compensate for degradation.
To maximise shelf life, we recommend opening only one bottle at a time and storing unopened refill bottles in a cool, dark place. Refrigeration above 0°C is ideal.
