The cost of raw materials used to make chocolate has gone up and even the cheapest chocolate treats have become dearer.
Black Thunder, manufactured by Japanese confectioner Yuraku, is one of the cheapest chocolate bars in the world. Costing just 30¥ (CHF0.20), its price has remained unchanged for three decades. Hence Japanese chocolate lovers were caught unawares when the company decided to raise the price to 35¥ fro...