For those of you who don't finish their chocolate bar in an immediate period of time from the moment you open it (who are you?), here are some important tips on storing chocolate so that it doesn't lose its wonderful flavor.
There are three main factors that are relevant when it comes to maintaining the texture of chocolate and they are: temperature, humidity and exposure to light.
The most important rule (that people often violate) is that it is forbidden to cool chocolate! Why? Because it can absorb odors from other products in the refrigerator - even if all the products in the refrigerator are closed. Also, its texture can be damaged as a result of the humidity in the refrigerator, which causes the sugar from the chocolate to rise to the surface of the chocolate (you know that chocolate suddenly has a thin white layer? so it is).
If you still violated the most important law, do yourself a favor and at least wrap the chocolate well before putting it in the refrigerator - to protect it from odors and condensation process, and if you have a tool to place it in it sealed after wrapping - what a good thing! And speaking of the refrigerator, the top of the refrigerator is the least bad place to put the chocolate (because that's where it's the least cold). Beyond that, when you take the chocolate out of the fridge, let it rest a bit at room temperature before you eat – so it can return to the temperature at which it will be tasty to eat.
Another rule is to keep chocolate away from any light source: natural light from the sun, artificial light from fluorescent, light from the flashlight of the field trip you wanted to go out to (and never went out) – any light source can damage the texture and taste of chocolate.
The last rule is to seal as best as possible, with plastic wrap or a bag, thereby not allowing oxygen to do what it is best at – oxygen, which will cause the development of bad flavors in chocolate. In fact it is best to store it in a shaded and relatively cool cabinet.
An interesting secret – if you have a wine fridge at home – first of all what fun you have! And secondly it is the ideal place to store chocolate in terms of suitable cold and low relative humidity.
In summary, the most recommended storage for chocolate is in the stomach. And if you still don't have a place in your stomach, keep the important rules from this article – an opaque place, without light, and preferably not in the refrigerator.