wiki-Double-edged blade

Definition: A knife edge structure where both sides of the blade are symmetrically sharpened, unlike single-edged blades which are ground only on one side.
Details: Double-edged blades are most common in Western-style kitchen knives. Because the bevels are symmetrical, the knife can cut straight through food without requiring adjustment. This design also makes the knife equally usable for both right-handed and left-handed users.
Comparison: Compared to single-edged Japanese knives, double-edged blades are generally less sharp and precise but offer greater versatility and ease of use. Single-edged knives excel at creating clean, smooth cuts (e.g., sashimi) and are thinner at the edge, while double-edged blades are more robust and user-friendly for everyday cooking.
Practical Use: Double-edged blades are widely used in household and professional kitchens for general cutting tasks, including chopping, slicing, and dicing. Their balanced structure makes them particularly well-suited for Western knife styles such as the gyuto (Japanese chef’s knife influenced by Western design) and santoku.
Cultural Note: While Japanese traditional knives are often single-edged to enable precise cuts and separation of ingredients, the influence of Western cooking led to the widespread adoption of double-edged blades in Japan, especially for multipurpose knives.

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