Вкусно?

I think you like sweets, don't you? Monkeys and people were looking for sweet food:
berries,fruits,honey. Because sweet taste - can be edible. But sour taste can tell you that the fruit is not ripe. Bitter can tell you that the fruit is toxic. There are four flavors in the world: sweet,sour,bitter,and salty. But there is one more: it was discovered one hundred years ago. It is called with Japanese word: "umami". This flavor will give you full taste food. This flavor is in meat, mushrooms and walnuts. But soy sauce will give this flavor to any food.