Q. I own a fast food franchise and straight-cut potato chips are our biggest seller. With the price of chips extremely high, I decided to make my own. How do I maximize the volume of chips out of a 10kg bag? Also, is there any natural chemical I can use to store the chips?
A. To maximize the yield this year, because of the low price of both No. 1 and No. 2 potatoes, I would suggest ordering a No. 1 80- or 90-count carton (the approximate number of potatoes in each 50-pound box) and leaving the skin on so that there is little trimming cost.
This worksheet, developed by Lamb Weston, might prove helpful in comparing costs. Making chips from scratch requires a lot more labor in order to make them properly. http://www.lambweston.com/support/profit_calculators/fresh_vs_frozen_calculator.jsp
Regarding preservatives, the only ones I would recommend using are concentrated lemon juice or white wine vinegar. Add 1 tablespoon per gallon of water to prevent oxidation of the potatoes.