reciProfity does some wonderful things!
Here are the two you want to know about first:
1. COMBINE LIKE PRODUCTS INTO ONE ITEM
If you receive the same product packed in different ways from the same vendor OR you receive the same product from a different vendor but packed either the same or differently you can create one item with multiple product. Want to know how?
The integrated Book of Yields contains over 1000 raw ingredients and converts weight to volume and volume to weight, and calculates yield % for those ingredients!
reciProfity calculates the after shrinkage ingredient prices in your recipes based on the Book of Yields %.