Seafood Technique Authority tier 1

Sashimi Cutting Techniques Hira Zukuri Usu Zukuri

Japan — sashimi knife cutting styles codified in professional Edo period kitchen practice

Overview

Professional sashimi knife technique involves multiple cutting styles (zukuri) appropriate to different fish textures and aesthetics. Hira-zukuri (flat cut): the standard cut for most fish — knife angled at 45°, pulled toward you in single smooth motion, 7-8mm thickness. Usu-zukuri (thin cut): paper-thin slices of firm white fish (hirame, fugu) fanned across the plate — requires yanagi-ba at very shallow angle. Kaku-zukuri (square cut): thick 1.5cm cubes for fatty tuna (otoro) — preserves texture. Ito-zukuri (thread cut): extremely fine julienne for decorative presentations. Each cut style communicates the chef's assessment of the fish's ideal texture expression.

Flavour Context

Same fish, radically different eating experience based on thickness and cut angle

Key Principles

{"Hira-zukuri: knife at 45° angle, single pull-cut toward body — no pushing","Usu-zukuri: knife nearly parallel to board, extremely thin slices for firm-fleshed fish","Kaku-zukuri: straight vertical cube cuts for fatty, soft fish like otoro","Ito-zukuri: fine julienne from thin sheets — for specific presentations not eating in pieces","Always cut against the grain (muscle fiber direction) for tender cross-section","Yanagi-ba (willow blade): long single-pull motion — multiple strokes create torn edges"}

Pro Tips

{"Knife angle is information: steeper angle for softer fish (preserves shape), shallower for firm","The slice 'falls' into position — don't force the knife to separate","Arrangement matters: each piece overlapping slightly at 'kaishi' fold angle","Premium sashimi plating: 3, 5, or 7 pieces (odd numbers) in Japanese tradition","The first slice (kiri-tsuke) is often thicker — professional standard is even thickness throughout"}

Common Mistakes

{"Sawing motion instead of single pull — creates ragged, cell-torn edges","Wrong thickness for fish type — lean fish too thick is bland; fatty fish too thin is overwhelmingly rich","Cutting with grain — stringy, chewy texture instead of clean, tender bite","Using short knife requiring multiple strokes — long yanagi-ba essential"}

Source

Sushi: Theory and Practice — Ishii Shuji; Japanese Cooking: A Simple Art — Shizuo Tsuji

Cross-Cuisine Parallels

{'cuisine': 'French', 'technique': 'Carpaccio paper-thin raw meat/fish slicing', 'connection': 'Both require extremely sharp blades and single smooth strokes for paper-thin raw presentations'} {'cuisine': 'Italian', 'technique': 'Crudo di pesce cutting techniques', 'connection': 'Italian raw fish dishes use thin-cut techniques — less codified than Japanese zukuri system but similar knife principles'}