The company's most popular product is its sriracha sauce. It was originally made with Serrano peppers and is now made with red Jalapeño peppers, reducing the overall pungency. It is currently Huy Fong Foods' best-known and best-selling item, easily recognized by its bright red color and its packaging: a clear plastic bottle with a green cap, text in five languages (Vietnamese, English, Chinese, French, and Spanish) and the rooster logo. One nickname for the product is "rooster sauce”, for the logo on the bottles. In contrast to similar hot sauces made by other manufacturers, Huy Fong's sriracha sauce does not contain fish extract, making it suitable for most vegetarians, although the presence of garlic may make it unsuitable for members of Buddhism and some Hindu denominations.