I create my recipe files that I use in general, but then I have a folder for mixed juices.
In that folder, I create a folder named the nic batch number,
In that folder, I save the modified recipe for each customers specific juice, so I have record of it without changing the original recipe.
Recipe folder: (All the recipe files in this root folder)
Nic Batch xx123xx:
Customer name 1:
Customer name 2:
Nic batch xx234xx:
This helps me keep track of born on dates, and to know who to contact if I find anything later on about any part of a mix. Customer safety needs to be priority 1. So if you had a customer that thinks they may have gotten a stinky, or bad mix, you can easily track to see if any of the others from that group had similar issues. If you mixed it right (always a chance for problems) and nobody else had an issue, you can see if it was a product issue, or operator error very quickly.
Anyway, Hope this helps someone and any suggestions are always welcome