Know the measurement system
Australian, US and imperial spoons, cups and fluid ounces are not all identical. Select the system that matches the recipe’s origin.
A recipe multiplier can scale quantities exactly, but kitchens are physical systems. Pan geometry, ingredient density, mixing, seasoning and heat transfer may not scale in the same proportion.
Use serving scaling for proportional quantities, regional conversion for genuinely equivalent measures, ingredient-aware weight estimates when a named density is available and pan comparison for area or volume context. Do not treat a generic cup as a universal gram value.
Australian, US and imperial spoons, cups and fluid ounces are not all identical. Select the system that matches the recipe’s origin.
Salt, spices, raising agents and concentrated flavours may need tasting or staged addition rather than blind rounding.
Oven temperature does not scale with servings. A deeper or larger batch can require a different cooking time even when pan area is similar.
Scale servings, convert regional measurements and compare pan sizes.
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