Grey Poupon is known for its distinctive flavor, which is achieved through the careful selection of high-quality mustard seeds and other ingredients. Traditional Dijon mustard, including Grey Poupon, is typically made from a blend of both brown and white mustard seeds, which contribute to its unique taste. The seeds are ground and mixed with vinegar, salt, and spices, resulting in a smooth and tangy condiment. While the specific texture may vary, Grey Poupon does not contain whole mustard seeds in its final product, as the grinding process transforms the seeds into a fine paste. If you are curious about other ingredients or the manufacturing process, detailed information could be available on the current web page related to Grey Poupon.