It would be really useful if once you edit a recipe be that adding a different ingredient or adding a check or process an option appeared to automatically update all currently planned brews for that beer that are in the schedule.
A tickbox is probably better than it automatically doing it in case you don’t want all the recipes changed for whatever reason.
100% agree this would be a great option. Even if it was a pop-up when confirming the updated recipe, “would you like this to update scheduled brews” etc. It happened a few times where items haven’t appeared in the pre-brew stock check due to a change in a recipe and I’ve been left short or had to buy from another supplier at short notice to keep things on track.