In Dim sum restaurants, Char siu sou is the most common version available. Other varieties may include century egg and lotus seed paste. These are commonly found in Hong Kong or Singapore in Asia. They may occasionally be found in some overseas Chinatowns.
In Shanghai cuisine a number of dried varieties are available. Such as peanut sou ，green bean sou or walnut sou . People often buy them for sourvenirs in boxed forms.