Packaging Cost

What Drives Cost per Case on a Bottling or Canning Line

A money-first breakdown of packaging-line cost per unit: where the dollars sit across containers, closures, labels, labor, and giveaway, and how to build a quote that holds margin on short runs.

Cost per case in packaging is mostly bought-in material, so build the bill of materials first. On a 24-count case of 12 oz cans, the empty cans often run 8 to 12 cents each, or roughly 1.92 to 2.88 dollars per case; ends and closures add another 20 to 45 cents; labels or shrink sleeves add 15 to 40 cents; the corrugate tray or case and film add 25 to 60 cents. Before product and labor, packaging materials alone commonly land at 3.00 to 4.50 dollars per case. The Cost per Case calculator holds these as the variable cost per case so you can flex pack format and quantity without rebuilding the sheet each time.

Labor and machine time are converted costs, and on a filling line they are dominated by line speed and staffing, not headcount alone. A line crewed by 6 people at a fully burdened 38 dollars per hour costs 228 dollars per producing hour. Run it at 600 CPM and 24 per case, and that is 1,500 cases per hour, so labor is 228 / 1,500 = about 15 cents per case. Drop the effective rate to 420 CPM through stops and speed loss, and the same crew now spreads over 1,050 cases per hour, pushing labor to 22 cents. Every point of downtime raises the per-case conversion cost, which is why line efficiency is a cost lever, not just a KPI.

Machine and overhead recovery is where short runs quietly lose money. Fixed setup, changeover, CIP, QA release, and pallet costs do not shrink with order size, so spreading them matters. Put 1,200 dollars of fixed cost on a 4,200-case order and you add 1,200 / 4,200 = 29 cents per case; put the same 1,200 dollars on an 800-case trial and it becomes 1.50 dollars per case. The Cost per Case calculator keeps fixed setup separate from variable cost precisely so this shows up in the quote. A changeover that burns 2 hours of a 228 dollar crew plus lost capacity is a real 456 dollars before any material moves.

Scrap and loss stack on top of nominal material cost, and they compound because a lost filled container has already absorbed product, closure, and label. Container loss of 1.5% on 52,000 empties is 780 units scrapped; if each finished unit carries 30 cents of material, that is 234 dollars, and any of those lost after fill cost more. Fold your Container Loss and Pack-Out Rate results into an effective yield: a 97% net yield means you must buy and process 100 units to ship 97, so divide material cost by 0.97 to land the true per-good-case figure. Quoting off nominal counts instead of yield-adjusted counts is a classic 2 to 4 point margin leak.

Liquid giveaway is the cost line estimators forget because it never appears on a purchase order. Overfilling 48,000 containers by even a small volume at 1.8 cents of product per container is 48,000 x 0.018 = 864 dollars of product given away, plus any fixed lab and hold cost of, say, 150 dollars. Run that filler daily and giveaway alone is over 300,000 dollars a year. The Liquid Giveaway Cost calculator puts a dollar figure on excess fill so you can weigh valve maintenance or tighter checkweigher limits against the recovery. Build a realistic giveaway allowance into the quote rather than pretending every fill lands exactly at the declared volume.

Utilities and CIP time are small per case but decisive on scheduling and margin for allergen or flavor changes. A rinser using 0.018 gallons per container across 50,000 containers is 900 gallons plus wastewater load per run, modest in dollars but real on high-volume sites. CIP is the bigger hit: 4 hours of clean-in-place on a line worth 1,500 cases per hour is 6,000 cases of capacity you cannot sell, so the changeover carries both its labor and its opportunity cost. Use CIP Downtime to reserve the sanitation window, then load that lost capacity into the fixed cost of the following run so short campaigns after a big cleanout are priced honestly.

Turn the pieces into a defensible quote by stacking yield-adjusted material, converted labor, allocated fixed cost, giveaway, and a margin, then stress-testing volume. Say material is 3.60 dollars per case divided by 0.97 yield equals 3.71; add 15 cents labor, 29 cents fixed, 6 cents giveaway, and you are at 4.21 dollars before margin. At a 22% target margin the price is 4.21 / 0.78 = 5.40 dollars per case. Re-run the fixed allocation at half the order size and the price should jump, which is your signal to set a minimum run quantity. The most common quoting error is pricing the ideal run and eating the difference on every real one.

Guard against the three estimates that most often go wrong: stale material pricing, ignored scrap yield, and optimistic uptime. Can and resin prices move with commodity markets, so a bill of materials built six months ago can be off by 5 to 15%. Quoting at rated speed instead of the line's real effective rate understates labor and fixed recovery by the same margin your downtime runs, often 15 to 25%. And treating giveaway and loss as zero quietly hands back 2 to 5 points of margin. Refresh material costs each quote, base labor on measured effective cases per hour, and carry explicit loss and giveaway allowances every time.

Published 2026-07-01.