Hokkaido Uni (Bara)Some of the best uni is known to come from Japan and processed by uni processors mostly in Hokkaido, Japan. Every uni processor has their own "secret" way of processing uni to maintain its sweetness and keeping the uni intact so it doesn't melt in transit. Uni is extremely sweet and rich with umami flavor. In Japan, it is served mainly as sushi, gunkan or donburi (over rice), but in other countries it used as sauce. Grading Grading in uni is mainly