Answer

5. It is a thermo-oxidation system, which means that once the additive is activated, the presence of oxygen causes the packaging film to disintegrate. Heat, sunlight and stress (i.e. movement) trigger and accelerate this process.

If all four are present – for instance a bag stuck in a tree being buffeted by the wind during summer – it can degrade in as little as 6 weeks. However, as long as there is oxygen, “thermal” degradation can occur at any temperature (even at less than 0oC, although it may take several years).