URL: https://postharvestreport.com/field-notes/post-harvest-scorecard
Best-in-class cannabis post-harvest hits labor, yield, and quality at the same time: $20/lb labor, 75–82% A/B recovery, <2% scarring, ±1% potency vs hand-trim.
Field Note · 2026
By Jay Evans, CEO, Keirton Inc. — May 14, 2026 · 9–12 min read
Post-harvest is where a producer either protects value or destroys it.
By the time flower reaches post-harvest, most of the cost has already been spent. The crop has been grown. The labor, energy, nutrients, genetics, and overhead are already in the product. The job of post-harvest is simple: protect as much sellable value as possible while moving product through the system at scale.
For large-scale cannabis producers, three levers matter most: labor (cost to buck, trim, sort, and grade each pound), yield (how much sellable A/B-grade flower is preserved), and quality (whether the final flower meets market expectations). The mistake is looking at them separately. Best-in-class post-harvest hits all three at the same time.
Take all labor involved in bucking, trimming, sorting, grading, touch-up, and movement between stages, and divide by pounds of finished flower. Best-in-class target: $20 per pound. Above this benchmark at commercial scale is usually system design — too much hand work, rework, movement, or quality correction after the fact — not just wage rate.
Yield is not only how much flower you recover. It is how much grade you preserve. A producer could claim high recovery, but if too much A-grade flower becomes B-grade, the system is still destroying value. A-grade typically means strong visual appearance, good bud structure, clean trim, minimal scarring, and flower size generally above 5/8 inch. B-grade is often smaller flower, commonly below 5/8 inch.
The primary failure when automation and process are not optimized is flower damage — scarring (flower looks shaved or over-trimmed) and trichome degradation (resin heads disturbed). Older equipment was designed to trim exceptionally close. Today's buyers want flower that looks preserved, not overworked. Best-in-class systems keep visible scarring under 2%.
A common belief is that more visibly intact trichomes must mean higher potency. In commercial testing across 20 producers in four countries, including 34 verified lab tests, automated samples landed within ±1% potency variance with no meaningful loss in cannabinoid or terpene profile when properly processed.
Equipment matters, but equipment alone does not create best-in-class results. Drying, moisture level, water activity, room temperature, room humidity, cultivar structure, flower size and density, feed rate, machine setup, handling discipline, and movement between stages all matter. Two producers can buy similar equipment and get very different outcomes. One built a system. The other bought machines.
Drying may be the most underrated part of automated post-harvest success. Too wet and automation struggles. Too dry and flower becomes fragile. Many producers blame the machine when the real problem started in the dry room.
On a 10,000 lb monthly input, a move from 60% to 75% yield is not just a 15-point improvement — it creates 25% more sellable flower (6,000 lb to 7,500 lb). That's before accounting for A-grade preservation.
Best-in-class post-harvest is not about choosing between craft quality and commercial scale. It is about building a system that protects both economic value and product quality. The strongest operators are asking: can we hit labor, yield, and quality at the same time? That is the standard. The biggest mistake is buying equipment without building an optimized post-harvest system. Very few producers in the world have that system.