Supplier Comparison for Restaurants: Cheapest Is Not Always Best
How to compare suppliers using unit price, reliability, pack size, tax, quality, and affected recipe margins.
Supplier comparison is not just a price table. A cheaper item can be worse if the pack size causes waste, the quality changes yield, or the delivery reliability breaks production.
Normalize before comparing
Compare unit to unit: per kilogram, liter, piece, or usable yield. If one supplier sells 5 kg and another sells 4.5 kg, the invoice total is not enough.
Tax treatment, delivery fees, discounts, and pack size need to be stored separately enough that the system can calculate a fair comparison.
Compare by recipe impact
The useful question is not only which supplier is cheaper. It is which supplier protects margin on the products that use the ingredient.
If one cheese affects twelve products, a small difference can matter more than a big difference on a slow-moving garnish.
Keep humans in the loop
AI can highlight a cheaper supplier or a strange invoice. The operator still decides whether quality, consistency, relationship, or availability makes the change worth it.
Karu's role should be to make that decision visible and fast, not to pretend procurement is only arithmetic.
Operator checklist
Compare normalized unit costs.
Include tax, discounts, and fees.
Measure impact on recipes and products.
Keep quality and reliability notes near the price.