How much $$$ can you save?
What can be done with unused materials?
How can unused materials be minimized?
How much coffee is made?  Cost?
How much is served?  Cost?
How much is not served?  Cost?
 
If you’re Starbucks what are you making the money on?  Yet you have all these non-product outputs.  You’re spending money on many things that are just being thrown away, not sold.  And your employees have  to spend time picking up the trash and taking it out to the dumpster when they could be making more coffee.  Money’s going to waste.  Try to make more coffee for less money.