Farmsoft quality control
Lettuce quality inspection app
Lettuce QC for iceberg, romaine, cos, butter and leaf lettuce: head weight, firmness, wrapper leaves, colour, tipburn and butt discolouration scored per lot with photos.

AI assisted defect scoring from photos
Live results visible to office, sales and suppliers
PDF QC report e-mailed automatically
100% of inspections linked to lot traceability
Lettuce quality checks
| Test | Measured as |
|---|---|
| Head weight | g by count size |
| Firmness | soft / firm / hard (iceberg) |
| Wrapper leaves | count |
| Butt condition | clean cut, discolouration |
| Colour | green score |
| Core temperature | °C after vacuum cooling |


Lettuce defects to score
- Tipburn
- Russet spotting (ethylene)
- Pink rib
- Butt discolouration
- Bolting / seed stem
- Slime and soft rot
Standards: USDA U.S. Standards for Grades of Lettuce; UNECE FFV-22.
Storage conditions
| Temperature | 0 °C |
|---|---|
| Relative humidity | 98–100 % |
| Typical storage / shelf life | Iceberg 21–28 days; leaf lettuce 10–14 days |
Typical commercial ranges; confirm against your variety and customer spec.
QC at every stage
- Incoming / receivalCheck every supplier delivery before it is accepted; reject or downgrade with photos.
- Pre-packConfirm the lot meets the pack spec before it goes on the line.
- Post-packSample finished cartons for weight, grade, label and defects.
- StorageRe-inspect lots held in cool or controlled-atmosphere storage.
- Pre-shippingFinal check on the pallet; the report travels with the shipment.
- Customer claimsLink a claim to the original inspection, photos and temperatures.
How Producepak runs lettuce QC
- Inspection templates per crop, customer and stage – your own tests, limits and scoring
- Photos on every sample, with AI-assisted defect detection
- Pass, downgrade or reject with automatic e-mail to the supplier or customer
- Results linked to the lot, pallet, PO and invoice for traceability
- Supplier and grower quality scorecards over time
- Works on phones and tablets in the packhouse, cool room and field

Related
- Loose leaf lettuce packingFarmsoft packing and management software.
- Leafy greens quality inspection appQC checks, defects and storage specs for leafy greens.
- Leafy greens traceability app (traceability)Farmsoft traceability page.
- Quality control homeAll quality inspection apps.
- Quality control video & pricesWatch the video and see pricing.
Questions
What does a lettuce quality inspection check?
Head weight, Firmness, Wrapper leaves, Butt condition, Colour, Core temperature. Each test has its own limits and scoring, set per customer and pack.
What are the most common lettuce defects?
Tipburn, Russet spotting (ethylene), Pink rib, Butt discolouration, Bolting / seed stem, Slime and soft rot.
What temperature should lettuce be stored at?
0 °C at 98–100 % relative humidity; Iceberg 21–28 days; leaf lettuce 10–14 days.
Which standards apply?
USDA U.S. Standards for Grades of Lettuce; UNECE FFV-22.
Can suppliers see the result?
Yes. The inspection report, with photos, can be e-mailed to the grower or supplier automatically when the inspection is completed.
Sources and further reading
- postharvest.ucdavis.edu – produce facts sheets
- freshproduce.com – commercial storage of fruits vegetables and floral
- ams.usda.gov – vegetables
- unece.org – FFV Standards
- postharvest.ucdavis.edu – Vegetables English
- urbanagnews.com – the quality standards for hydroponic lettuce
- research.wur.nl – lettuce growth and quality optimization in a plant factory
- ishs.org – ishs article
- mdpi.com – research article
- scielo.br – 9HxWDydH6DJfkDKr3jK7xFr
- ieeexplore.ieee.org – document
- ams.usda.gov – lettuce grades and standards