From ancient times to the present, decanter has continuously evolved, and there are three generations of products. The first generation of decanter is narrow on the top and wide on the bottom, this decanter is the most common in the market, and the wine is poured into the bottle about one-fifth of the height, so that the contact area between the water and the air is maximum; The second generation decanter has the taste of the strange test bottle in the laboratory, the bottle mouth is not in the center, but the opening above the side, the shape of the bottle is formed by the combination of two triangles, the principle is to make the contact area between the red wine and the air is larger. The third generation decanter has the taste of art, and the style of the first generation decanter is close. The difference is that this decanter has a wider bottom, more than 20 centimeters in diameter at its widest point, and a glass funnel at the mouth to facilitate the pouring of wine. The fundamental purpose of the evolution of the decanter is to maximize the contact area between the red wine and the air, while not allowing the aroma to sneak away, and to retain the original flavor of the wine after removing the smell, to achieve the highest wine tasting realm.