In Soapie, cure and cost are not separate from the batch. They are part of the same historical record.
Why cure belongs in the same workflow
Makers often need more than the date a batch was made. They need to know when it should be ready, what happened during cure, and whether the batch can be compared against later runs.
Why cost snapshots matter
Ingredient prices change. A useful workshop record keeps the cost context attached to the completed batch rather than recalculating history every time a supplier price moves.
The practical point
This is what turns the app from a calculator into a workshop system. The formula starts the work, but cure status and cost history finish the record.