SHELFCAST PREDICTION ENGINE
Shelf-Life Calculator
Powered by USDA Handbook 66 & UC Davis Postharvest Research
Enter Harvest Data
Source: USDA HB66
0–200 hrs · default 4 hrs
4°C (39°F)
−2°COptimal zone25°C
Estimated Remaining Shelf Life
99%
14.4
days
of 14.6d max at 4°C
Based on USDA HB66 · Q10=2.5
Predicted Risk Score
1LOW RISK
0 — Low100 — Critical
Recommended Routing
✓🏪 Retail (grocery chains)(5d min)
✓📦 DTC Subscription Box(4d min)
✓🚛 Distributor(4d min)
✓🛒 Fast-turnover retail(3d min)
✓🍽 Restaurant / food service(2d min)
✓🌾 Farmers market (next day)(2d min)
✓🍽 Same-day restaurant delivery(1d min)
✓🧃 Juice / food processor(0.5d min)
✓♻️ Compost / animal feed
Estimate based on USDA Handbook 66 and UC Davis postharvest baselines. Actual shelf life varies by cultivar, packaging, humidity, harvest quality, cooling speed, microbial load, ethylene exposure, and handling conditions.
Temperature–Shelf Life Curve for Romaine Lettuce
Q10 coefficient: 2.5 · Source: USDA HB66
Estimated shelf life at tempYour selected temperature (4°C)
ShelfCast Prediction Engine · Powered by USDA Handbook 66 & UC Davis Postharvest Research