The earliest chocolate, which originated from ancient Indians in Mexico, is a kind of food containing cocoa powder. It tastes bitter and spicy. 1526, the Spanish explorer cortes brought it back to Spain and presented it to the king at that time, which made Europeans regard it as ecstasy and set off a frenzy. Later, around16th century, the Spanish made chocolate "sweet". They mixed cocoa powder and spices in sugarcane juice to make a sweet drink. At 1876, a Swiss named Peter was ingenious and added some milk to the above drinks, completing the whole process of modern chocolate creation. Soon, it is believed that liquid chocolate will be dehydrated and concentrated into chocolate candy bars that are easy to carry and store. 1828, Van Houten of the Netherlands thought of removing 2/3 of the fat and making it easy to drink.