madebyyouandi
Senior Member
Interesting. I never saw that part of the auction. I looked online and they said there are two kinds of tuna: Those caught and stored at zero (the ones in your video) and those caught and sold at -60C (the ones in my video).Here's another video. As well as showing fresh tuna, later in the video a large shrimp is dispatched in the sushi restaurant just before consumption.
The articles I read didn't go on to talk about parasites, only length of time at sea and distance from Japan. For example, according to this article, you can keep the fish at zero for up to two weeks before taking the fist back to be sold as "raw, unfrozen".
マグロの運搬:生マグロと冷凍マグロ
This article says that freezing -40C for 24 hours or longer kills all parasites, so there are risks in eating the "raw, unfrozen" fish but it's basically safe. And that farmed tuna has zero risk as it's never exposed to parasites in the open ocean.
まぐろ(鮪)の寄生虫アニサキス・クドア!刺身の食中毒症状・冷凍で対策!
Since all fish is frozen when shipped to the US, your safe from parasites. And, from what I read, unless you're eating at high end restaurants in Japan, you're also safe as they use the frozen fish or farmed fish to keep costs down -- so have a taste.