Ama-ebi Sweet Shrimp Raw Preparation Hokkaido
Japan (Hokkaido and Toyama Bay primary sources; cold deep-water Pacific and Sea of Japan habitats)
Ama-ebi (甘エビ, 'sweet shrimp' — Pandalus borealis, northern shrimp) is one of Japan's most prized raw shellfish — served exclusively as sashimi or sushi due to the dramatic texture transformation that occurs when heat is applied (the flesh becomes tough and loses its defining sweetness). The shrimp are caught in deep, cold northern Pacific and Sea of Japan waters, particularly off Hokkaido and the Toyama Bay, and are remarkable for their natural sweetness derived from high concentrations of glycine amino acid in the raw flesh — a sweetness that disappears entirely when the protein denatures under heat. Premium ama-ebi at high-end sushi restaurants are served very fresh (ideally same-day), peeled but with the heads still attached for subsequent deep-frying as karaage: the shrimp heads, fried until completely crisp, are consumed whole as a textural counterpoint to the delicate raw tail. The heads contain the roe (in season), concentrated fat, and the same sweet shrimp flavour rendered into crisp, salty-sweet form. Standard service: the peeled raw tails with wasabi and soy, or as gunkan-maki (battleship sushi) with a strip of nori, sometimes with a tiny amount of shiso or ikura. The characteristic translucent pale pink-orange colour and the glassy, almost liquid tenderness of the raw flesh are the quality indicators.