To obtain a tasty reddish soup beverage readily edible at any time and at any place.

A reddish vegetable such as beet, tomato, red carrot, red bell pepper, etc., an acid fermented milk, a material containing another seasoning component, etc., are mixed with water, optionally heated and cooked, finely ground by a homogenizer, etc., thermally sterilized, packed into a container and sealed or packed into the container, sealed and thermally sterilized to give a reddish soup packed in the sealed container. The addition of the acid fermented milk can improve dispersion stability of finely ground ingredient in the soup and provide a refreshing taste.