I have the Vicious Viper tried with a friend and for me as a sharp-eaters immediately realized that I had to get me well. So I have it ordered from Amazon and after they got home done right times in the soup. Even a single drop for example, a serving of soup one notices clearly, because she gets a pleasant sharpness alone it (of course, is a single drop experienced Sharp Esssern not enough;)). This sauce is so good for those who like to eat spicy. She also recalls a relatively long time because they are always used only in small amounts. While there is still much sharper sauces, but also trained me as a fairly sharp-eaters it is enough to bring me back to my limits.