Part of the Cu Chi Tunnel tour included a section where we were shown how rice wrappers are made. Here batter is poured onto to griddle that looks very similar to how crepes are made.
Then the wrapper is transferred to a woven drying mat. The mat leaves a woven imprint onto the wrappers.
I guess this woman had been making wrappers all morning because a long row were drying outside. They have to dry for a quite a few days, which I thought was surprising. I bought some summer rolls on the side of the road in Ho Chi Minh city and they were quite delicious, filled with mint, pork, shrimp and lettuce. They also came with a spicy peanut hoisin dipping sauce.