Sea Buckthorn Berries IQFSea Buckthorn is a cherished Eurasian fruit, most famously from Siberia, with flavors reminiscent of green apple, pineapple, and passion fruit. Despite their bracingly tart and tropically fruity flavor profile, they are a challenge to harvest in between every berry is a 3 inch needle sharp thorn. Thankfully, this frozen selection is devoid of danger and full of flavor, fantastic for making oxymels, custards, or ice creams.