A sushi chef shows simple and easy way to cut tuna sinews properly for tastier sashimi which he actually doesn't want to teach anybody.

Cutting direction of tuna sashimi
(1) Put a knife in a way to cut the sinews.
(Put a knife perpendicular to the sinews.)
(2) Know the flow of the sinews
(3) Slide a knife along the flow of the sinews
Along the flow: Cuts sinews without breaking the meat
Against the flow: Breaks the meat and makes the sinews stand out

#sashimi #tuna #howtocut #howtofillet #sinew