Why 9mm Is Often the Foodservice Benchmark Between Thin and Thick Cuts
A 9mm straight cut sits near the middle of the common 7mm–12mm comparison range, so it is useful when buyers want a reference point rather than an extreme. It offers more potato body than a thin 7mm format while staying less substantial than 10mm or 12mm. That makes 9mm frozen French fries a practical starting sample for QSR, restaurants, foodservice distributors and buyers serving more than one type of customer.
The value of 9mm is versatility, not a promise that it is universally “best.” Use it as a benchmark and compare the actual cooked result with thinner or thicker candidates. Fry colour, surface texture, potato interior, breakage and holding behaviour still depend on the exact product and cooking conditions.

