Keep the chocolate cool.
Rowntrees/Nestle chocolate factory is located in my town (York), so I can tell you that a different formulation and packaging is used for exports to foreign (hot) countries. That's partly why the candy you buy in the Phils tastes different.
Our factory is also responsible for the invention and manuacture of the biggest selling chocolate bar in the world...Kit Kat, plus of course, Aero, Polo mints and many other famous brands.
