How do I change a saved recipe without rewriting past meals?

Open the saved dish and change its ingredients, amounts or finished weight for future use. Review raw and cooked states if the method changed. The updated version is used when you log a new portion.

Meals already saved keep the recipe values and amount recorded at that time. Editing the recipe does not rewrite history. To correct a past portion, open that diary entry and make the change there deliberately. This lets you improve a recipe without changing what earlier day's totals meant.