Pan-Thai — knife technique is universal but with Thai-specific applications; the functional cutting norms are consistent across regional Thai cooking
Thai knife work has specific standards for specific ingredients that serve functional rather than aesthetic purposes. Kaffir lime leaf chiffonade must be extremely fine (1mm) because thick strips are fibrous and unpalatable; lemongrass is always cut at a 45-degree bias to maximise the surface area of the exposed aromatic cells; galangal is sliced paper-thin (2mm) for soup infusion but in 5mm rounds for longer cooking; krachai is julienned for stir-fry because the thin strips cook evenly in the brief wok time. Thai vegetable cutting is not decorative — every cut serves the specific cooking context of the ingredient.
Thai knife technique is flavour technique — a correctly chiffonaded kaffir lime leaf contributes floral citrus brightness to a finished curry in a way that coarsely cut leaves cannot, because the smaller surface area releases volatile oils more evenly throughout the dish.
{"Kaffir lime leaf chiffonade: remove central spine, stack leaves, roll tightly, slice 1mm — any thicker is fibrous","Lemongrass: 45-degree bias cut increases surface area; use only the bottom 8–10cm","Galangal: 2mm for soups (maximises infusion); thin-julienne for raw salads; thick-pound for pastes","Coriander root: first crush with flat of knife to loosen fibers, then chop","Thai eggplant: quarter lengthwise immediately before cooking — oxidises rapidly"}
The 'test chiffonade' for kaffir lime leaf: take one strip and press it between two fingers — if you can feel its thickness as a separate layer, it is too thick. The correct chiffonade should be almost invisible between the fingers but visible in bulk.
{"Thick kaffir lime leaf strips — 3mm+ is unpalatably fibrous","Straight (not bias) lemongrass cuts — reduces aromatic surface area and produces irregular rings in soups","Pre-cutting Thai eggplant and not cooking immediately — it oxidises to deep brown within 5 minutes","Chopping rather than pounding lemongrass for paste — chopping misaligns the fibres rather than rupturing cells"}