As other commenters have pointed out, the manual data entry this requires makes it pretty onerous in a home kitchen, but I wonder if there's something similar for commercial kitchens? You could possibly integrate with the POS system to track how much of each ingredient should have been used given the dishes sold in a day. Wouldn't be perfect for stuff like flour where you need to adjust based on humidity, but it could give you a general idea of when supplies should run out.