Is Sapporo Ichiban Miso Ramen vegan? Yes. Sapporo Ichiban Miso Ramen is a vegan ramen made with soy sauce and miso ( Soybeans, Salt, Rice, Barley ) paste. It does not contain any animal products, so it is vegan. Sapporo Ichiban Miso Ramen is a popular Japanese ramen noodle dish