Ma Bo mentioned hardtack as being a staple food of Chinese hard-labor workers in Inner Mongolia, during the Cultural Revolution.

Hardtack was a staple of military servicemen in Japan and South Korea well into the late 20th century.
It is known as Kanpan (乾パン) in Japan and geonbbang (geonppang, 건빵) in South Korea, meaning 'dry bread', and is still sold as a fairly popular snack food in both countries. (
Canned kanpan is also distributed in Japan as emergency rations in case of earthquake, flood, or other disaster.)
A harder hardtack than Kanpan, called Katapan (堅パン), is historically popular in Kitakyushu City, Fukuoka, Japan as one of its regional specialty foods.
In Korea, geonppang (hardtacks) mixed with byulsatang (star candy) as a medley is considered a popular snack.
Ma Bo mentioned hardtack as being a staple food of Chinese hard-labor workers in Inner Mongolia, during the Cultural Revolution.
Hardtack was a staple of military servicemen in Japan and South Korea well into the late 20th century. It is known as Kanpan (乾パン) in Japan and geonbbang (geonppang, 건빵) in South Korea, meaning 'dry bread', and is still sold as a fairly popular snack food in both countries. (Canned kanpan is also distributed in Japan as emergency rations in case of earthquake, flood, or other disaster.) A harder hardtack than Kanpan, called Katapan (堅パン), is historically popular in Kitakyushu City, Fukuoka, Japan as one of its regional specialty foods. In Korea, geonppang (hardtacks) mixed with byulsatang (star candy) as a medley is considered a popular snack.
Hardtack