I get the impression you're trying to deliver a product at the same level of consistency as a McDonalds? Having never worked at a McD's or any other type of fast food operation, I can't provide insight to what secret they have developed. However, "looking through the window" I can only guess that they've spent millions to develop proprietary equipment to produce that level of consistency. I do say consistency rather than quality because it's a reality that when when you start to franchise and develop a brand that is idiot proof, you are not really talking quality. It then becomes a bag-in-box cookie cutter operation. Nothing wrong but not my cup of tea. That in mind, the biggest drawback is the Franchisee will not be employing people that will be allowed to take a vested interest in the success of the operation. There's no creativity, no room for adjustment, no outside the box thinking.
To make the difference in the people follow the procedure and recipe's to a tee, you need to create a culture based on what you do at your current operation. I'd invest all your effort and time as well as funds in training your people rather than trying to find the best way to dispense salt and pepper or sauces since you already have a system that works. That's what will ensure the product made at the franchise level will be even remotely similar.
Sonoco makes something called an Accusalt. There is a picture below. I'm not sure the expense involved or what you need to do or who to contact but since they make this product already, all it might need is an adjustment to the amount it dispenses.
Again, I personally believe your going to make this work better through training but hope this helps.
Edited by oldschool1982 - 6/19/14 at 6:31am