Are these small black lines veins or something else?


Went to the store and they had “Grade 1 Sushi Grade Tuna” so me and the wife got some. They vacuum sealed it and when I was looking at it I kept finding small black lines. She said they are veins, I felt that was right but always better to be safe than sorry.

For some reason because of a mixture of bad light and vacuum sealing the color gets washed out and looks grey but it’s very much red as tuna should be.

Thanks!

10 comments
  1. I’d say veins. Parasites in tuna are usually pale and very obviously wormlike. These are neither.

  2. Sushi chef here

    It’s vein

    Worm would be longer than2cm and white color

    Also work will leave residue in meat sort of mushy

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