How Much Food Should You Order? Start With What You Have

Calculate demand, pars, usable stock and case rounding; compare suppliers and verify invoices without overbuying.

Ryan Speier

Order from a physical count and an operating plan. “We usually buy five cases” is not a method when sales, shelf life or stock have changed.

Use one unit throughout

Write the purchased case size and the unit used in the forecast. If a case contains 10 lb, convert both stock and expected usage into pounds. Do not subtract three cases from 45 lb or confuse purchased weight with usable recipe yield.

The basic calculation is demand until replenishment + deliberate safety stock − usable on-hand − confirmed inbound arriving in time. If demand is 80 lb, safety 10 lb, on-hand 25 lb and inbound 20 lb, you need 45 lb more. Ten-pound cases mean 5 cases, or 50 lb.

Check what the rounded order would do

Stock plus inbound plus that order totals 95 lb. Does it fit storage? Can the lots be used within their actual safe shelf lives? Does inbound arrive before the shortage? If not, split deliveries, choose a smaller pack or adjust the plan with evidence. Do not double the order to avoid doing inventory again.

The order calculator flags aggregate storage and likely-use conflicts. It cannot know individual lot expiration dates or a delivery that will be late. Keep a dated count and first-expiring-first-out handling appropriate to the product.

Compare the same product delivered

Product A costs $28 for a 10 lb case: $28 ÷ 10 = $2.80 per lb. Product B costs $24 for an 8 lb case: $24 ÷ 8 = $3.00 per lb. The cheaper carton is the more expensive product. Compare quality and usable yield too; an unsuitable substitute can cost more in the finished dish.

Ask every supplier for the same specification so the quotes compare. A request you can copy:

Please quote these exact specifications and pack sizes, including delivery charges, minimums, availability, substitution policy and offer validity. List alternatives separately. Quantities are planning estimates, not purchase commitments.

Check the delivery at the door

Check every line while the driver is still there: supplier, product and pack size, the quantity ordered against the quantity delivered against the quantity invoiced, condition, packaging, dates, and the temperature and acceptance standards your locally verified procedure requires. Write the result on the receiving log before the delivery is put away: accepted, short or rejected, with the reason. Separate rejected goods according to your procedures. Do not sign that everything was received correctly without checking; a shortage discovered on Friday is hard to prove.

Match the invoice before you pay it

Compare three numbers on each invoice line: the price quoted, the quantity received and the amount billed. A $2 increase on 50 cases is $100 on that one order; if you buy 50 cases every week, it is $100 a week. Ask about the specific item, the previous and current price and the invoice dates. A credit request follows a simple sequence: note the discrepancy on the receiving log the same day; send the supplier the invoice number, the line and the amount; ask in writing how the disputed amount will be handled (a credit memo, a corrected invoice or a deduction they authorize); pay the undisputed part of the invoice on the agreed terms rather than holding the whole bill; record the credit reference; and close the item only when the credit appears on the next statement or corrected invoice. A verbal promise is not a credit received.

The supplier quote, par sheet, receiving and credit worksheets give you the columns and a filled example of each. Review total purchases, food used, waste and credits together every week. A discount is valuable only if it lowers the cost of suitable product you can actually use before it spoils.

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