FWIW, in theory this makes slide rules even better for this, as they've been specifically designed to allow you to lock in non-linear relationships. Cooking is

FWIW, in theory this makes slide rules even better for this, as they've been specifically designed to allow you to lock in non-linear relationships. Cooking is stacking exponents with whole range of parameters, so linear scaling indeed happens only sometimes, if you squint hard :). Unfortunately, the error bars on everything are huge - purity and quantity of ingredients, accuracy of measuring devices, accuracy and reliability of equipment, and people's care about the process - they're all so bad that cooking simply cannot be anything better than an art. (The non-art variant is called process engineering.)