1. Truffle Truffle is a fungus with a special smell and rich in nutrients such as protein and amino acids. Because of its extremely demanding growth environment, it can't be cultivated artificially and its output is scarce, so it is very rare. Among them, French black truffles and Italian white truffles have the highest evaluation. Alba white truffle in Italy is a diamond in the food world. Someone once photographed a 52g white truffle at an auction for about RMB225,.

2. Caviar, strictly speaking, only sturgeon eggs are the real caviar, and caviar produced in the Caspian Sea bordering Iran and Russia has the best quality. It is known as "black gold" or "Caspian black pearl" because of its rare output and dark color. Among them, an Iranian caviar named "Almas Caviar" is the most expensive. It is extremely rare, and its appearance is glittering and translucent golden yellow. It comes from white sturgeon over 1 years old, and the price of canned fish in Clarking is 25, dollars.

3. Bai Zi and Bai Zi, the Japanese puffer fish, are the testes of puffer fish, and they are regarded as top delicacies in Japan because of their high content of protein. There are usually two ways to eat puffer fish Bai Zi, one is to roast it on charcoal fire and eat it with black truffles, and the other is to eat it raw with sauce. It is said that it tastes tender and creamy and melts in the mouth. As a high-class cuisine, it costs at least thousands of dollars to eat once.

4. Pine needles in glacial lakes. The rice is only produced in the glacial lake of Superior in North America. Actually, it is a kind of aquatic plant seed with low yield, so it is expensive and can be called "caviar in grain". It has high nutritional value, is rich in protein and various trace elements, and is delicious when used to cook porridge. However, because it is too expensive, it is generally used with ginseng, abalone, black-bone chicken, etc.

5. Cat excrement coffee, also known as kopi luwak, is made by feeding coffee beans to civet cats, and extracting the whole coffee beans from them for processing after the cats excrete feces. This is one of the most expensive coffees in the world at present, and the price per pound is as high as several hundred dollars. Because civet cats only choose the sweetest and most ripe coffee beans to eat, and then through the fermentation of civet cats' stomachs, the coffee produced has a unique taste, and it has gradually become famous and become a hot commodity in the international market.