Food science is truly complex, so in order to accurately replicate a recipe, you need to standardize pretty much everything. Currently, there’s plenty of variation and you just compensate by winging it and keeping an eye on the pot a little longer.
In order to reduce variation, we need to standardize the following:
- ingredients: The composition of meat and carrots varies a lot.
- heating methods: An oven set to 200 °C is not exactly 200 ° at every location and all the time.
- weigh everything: Volumes are complicated and messy.
- use a timer: This applies to all actions like stirring, heating etc.
All materials and methods should be accurately documented, because things like the coating or weight of your pan can introduce unwanted variability.