Particular ingredient cost allocate to one product

Hi,

Multiple Ingredients including Packing materials and Multiple outputs (Finished goods) in a production batch.

My requirement is particular packing material to be charged to the particular finished product. How to achieve this.

Ingredient 1 is common to all output

Ingredient 2 is Specific to FG-2 ( it should not charge to other Output)

Ingredient 3 is Specific to FG-3 (it should not charge to other output)

Please guide.

Regards

G.Oliver