Hi, I think that there is no such thing as chocolate that is weather (heat) resistant. Couverture chocolate is a quality chocolate which is high in cacao butter. Cacao butter melts just under body temperature. That is one of it's characteristics. This characteristic ensures a superior mouth feel to the chocolate...So this is why couverture is superior to compound chocolate (often with palm oil, with a slightly higher melting point)If well tempered the high cacao butter contents, gives the chocolate a nice sheen and snap.If you know this than a weather proof couverture chocolate sounds like a contradiction.CheersKarel
There actually is - there're a number of patents on it, and major companies are using it in india as we speak. The issue for you is that, as a small buyer of chocolate, you're not going to have access to any of these. Appropriately packaged product will be your friend, but that's only half of your battle - for as you well know the thousands of shopes that your courrier will delivery to will also not be 'thermally attractive' to your chocolate - so ensuring it arrives to them in good condition will be your first (solvable) issue - the next(and harder one) will be what to do once it arrives to them....