からすみ (Karasumi)

Nagasaki's 400+ year karasumi tradition produces a distinct salt-cure and pressing profile; one of Japan's three classic delicacies (sankin).
Protein 35-45% post-cure; salt 8-15%; lipid 25-35%; characteristic amber-orange colour from oxidation during sun-drying.
Fine-dining karasumi shavings (over pasta / rice), gift-grade kaiseki accent, Western-fusion premium retail.
Salt-cured and sun-dried mullet (Mugil cephalus) roe — Japan's premium counterpart to Mediterranean bottarga. Nagasaki has 400+ year heritage as the centre of Japanese karasumi production, with smaller producers in Kagawa and Taiwan-influenced southern Kyushu. Karasumi is one of Japan's three classic delicacies (sankin) alongside konowata and uni. The cure-and-press process takes 30-60 days, during which the roe loses ~50% mass. Used in fine-dining (shaved over pasta, rice), as gift-grade kaiseki accent, and increasingly in high-end Western fine-dining alongside Mediterranean bottarga.
| Japon | Food product; salt and protein labelling under JAS |
|---|---|
| Union européenne | Food import; allergen labelling for fish required |
| États-Unis | GRAS; FDA Prior Notice; fish-allergen labelling per FALCPA |
| Chine | GACC food facility registration; AQSIQ inspection |