NEOBIOME

OT_210: Hadad (Cornell Vegetable Program), Cold Storage Chart & Reference Guide (crop shelf-life)

Properties5
typesource
source_typegrey_literature
authorHadad, Robert
year—
topicsfood_systems_agriculture

10 min read

OT_210: Hadad (Cornell Vegetable Program), Cold Storage Chart & Reference Guide (crop shelf-life)

Source

https://rvpadmin.cce.cornell.edu/uploads/doc_500.pdf — original source (opens in a new tab; the file is not redistributed)

Summary

Cabbage = 12-16 weeks, NOT 4 weeks — the 4-week figure is HEAD LETTUCE in this source

A downstream compiled-research synthesis attributed a “head cabbage up to 4 weeks” shelf-life to Cornell. That is wrong. This source’s p.1 chart lists Cabbage at 12-16 weeks (32 °F, and 98-100% RH in the crop profile, p.13). The 2-4 week figure belongs to “Lettuce, head” (head lettuce) in the same chart. This page carries cabbage as 12-16 weeks and does not reproduce the 4-week error.

This is a crop-by-crop post-harvest cold-storage reference guide by Robert Hadad (Regional Vegetable Specialist, Cornell Cooperative Extension — Cornell Vegetable Program). It opens with a one-page summary chart of 28 vegetables and melons (recommended storage temperature in °F, relative humidity in %, and “Max Time Held” in weeks) and then gives a full profile for each crop covering quality criteria, harvest maturity, packaging, precooling, Optimum Storage Conditions (temperature, RH, and achievable storage life), chilling and ethylene behaviour, and physiological/pathological disorders. The entire guide is explicitly adapted from USDA Handbook 66 (“The Commercial Storage of Fruits, Vegetables, and Florist and Nursery Stocks”), the authoritative USDA-ARS reference held separately as OT_209.

For the Neobiome project its value is narrow and specific: it supplies per-crop shelf-life (storage duration) figures with their required temperature and humidity conditions. In the D02 cool-store model this is the input that governs how long each crop occupies cool-store volume — a short-life crop (broccoli 2-3 weeks) cycles through the store many times a season, while a long-storage crop (cabbage 12-16 weeks, topped carrots 7-9 months, dry onions 6-9 months) holds its volume for most of the year. It is data_quality: high (an authoritative extension guide restating USDA HB66, cross-corroborated by HB66 itself in this drop, every cited figure read verbatim) but US, not NZ.

Key claims

- claim: "REFERENCE-GUIDE IDENTITY + METHOD. A crop-by-crop cold-storage reference: a p.1 summary chart of 28 vegetables & melons (columns 'Recommended Temp (°F)', 'Recommended Relative Humidity (%)', 'Max Time Held (Weeks)') plus a full per-crop profile. Verbatim footnote: 'Adapted from: USDA bulletin #66 - The Commercial Storage of Fruits, Vegetables, and Florist and Nursery Stocks.' So this guide DERIVES from USDA Handbook 66 (a separate primary in this drop) — the two are not independent. Author: Robert Hadad, Regional Vegetable Specialist, CCE Cornell Vegetable Program. [verified verbatim against the raw]"
  source_location: "p.1 — title, byline, summary chart, and 'Adapted from' footnote."
- claim: "BROCCOLI shelf-life. Verbatim (Optimum Storage Conditions): 'Broccoli can be kept in excellent condition for 2 to 3 weeks at 0ºC (32ºF) with 98 to 100%RH.' (The p.1 summary chart lists a more conservative 1-2 weeks at 32°F, 90-95% RH.) A short-life crop → high cool-store turnover. [verified verbatim against the raw]"
  source_location: "p.10 — Broccoli, 'Optimum Storage Conditions' (crop profile); p.1 summary chart (Broccoli row: 32°F, 90-95%, 1-2 wk)."
- claim: "BUNCHED (fresh-market, with tops) BEETS shelf-life. Verbatim: 'Bunched beets can be kept for about 10 to 14 days at 0°C (32 °F) and above 98% RH.' [verified verbatim against the raw]"
  source_location: "p.7 — Beet, 'Optimum Storage Conditions' (crop profile)."
- claim: "TOPPED BEETS storage conditions + long-term storage life. Verbatim: 'Topped beets should be stored at 1 to 2°C (33 to 36 °F) and 98% RH.' and 'Red beets can be in air-ventilated storage for 4 to 6 mo and in mechanical refrigerated storage for as long as 8 to 10 mo.' So topped/storage beets are a LONG-occupancy crop (months), materially longer than the p.1 chart's conservative 7-8 weeks for 'Beet, topped'. [verified verbatim against the raw]"
  source_location: "p.7 — Beet, 'Optimum Storage Conditions' (crop profile); cf. p.1 summary chart (Beet, topped row: 32°F, 90-95%, 7-8 wk)."
- claim: "CABBAGE shelf-life = 12-16 WEEKS (the corrected figure). The p.1 summary chart lists 'Cabbage ... 32 [°F] ... 90-95 [%RH] ... 12-16 [weeks]'. The crop profile gives the conditions verbatim: 'Cabbage should be stored at 0 °C (32 °F) with 98 to 100%RH.' ⚠ CORRECTION: the '4 weeks' a downstream cr_ assigned to cabbage is NOT cabbage — the same p.1 chart lists 'Lettuce, head ... 32 ... 90-95 ... 2-4 [weeks]' (head lettuce). Cabbage is a LONG-storage crop (3-4 months); head lettuce is short (2-4 weeks). [verified verbatim against the raw]"
  source_location: "p.1 summary chart (Cabbage row: 32°F, 90-95%, 12-16 wk; Lettuce, head row: 32°F, 90-95%, 2-4 wk) + p.13 — Cabbage, 'Optimum Storage Conditions'."
- claim: "BUNCHED GREEN ONIONS shelf-life. Verbatim: 'Bunched green onions can be stored 3 to 4 weeks at 0 °C (32 °F) with 95 to 98%RH.' (Storage life drops to ~1 week at 5°C.) A short-life crop. [verified verbatim against the raw]"
  source_location: "p.24 — Onion, 'Optimum Storage Conditions' (crop profile, bunched green onions line)."
- claim: "MILD / SWEET ONIONS vs PUNGENT DRY ONIONS shelf-life. Verbatim: 'Mild type or sweet onions can be kept for 1 to 3 mo; they are stored in common storage with cool, circulating ambient air or in refrigerated cold rooms.' and 'Pungent dry onions can be stored for 6 to 9 mo at 0 °C (32 °F) with 65 to 75%RH.' So onion storage duration splits by type: sweet/mild 1-3 mo, pungent-dry (the storage/keeper type) 6-9 mo (the p.1 chart's 'Onion, dry' = 32°F, 70-75% RH, 28 weeks ≈ that dry-onion range). Note dry onions want LOW RH (65-75%), unlike most vegetables. [verified verbatim against the raw]"
  source_location: "p.24 — Onion, 'Optimum Storage Conditions' (mild/sweet + pungent-dry lines); p.1 summary chart (Onion, dry row: 32°F, 70-75%, 28 wk)."
- claim: "TOPPED CARROTS (mature) long-term shelf-life. Verbatim: 'Mature topped carrots can be stored for 7 to 9 mo at 0 °C (32 °F) with 98 to 100% RH.' One of the longest-occupancy vegetables in the guide (the p.1 chart's more conservative 'Carrot, topped' = 32°F, 90-95%, 16-20 weeks). [verified verbatim against the raw]"
  source_location: "p.15 — Carrot, 'Optimum Storage Conditions' (crop profile); cf. p.1 summary chart (Carrot, topped row: 32°F, 90-95%, 16-20 wk)."

Neobiome Intelligence relevance

Feeds d02_smart_food_systems as a per-crop SHELF-LIFE (storage-duration) reference for the community cool-store model. D02’s scope explicitly lists “cold storage” and “food processing and preservation”; this guide supplies the crop-level durations that turn a cool-store volume into a throughput. Concretely:

  1. Storage duration governs cool-store volume occupancy. Each crop holds cool-store volume for its storage life, so the mix of short- vs long-life crops sets how much simultaneous volume a community needs and how many times a season the store turns over. This source ranks the crops directly: broccoli 2-3 weeks and bunched green onions 3-4 weeks (fast turnover) at one end; cabbage 12-16 weeks (~3-4 mo), mild/sweet onions 1-3 mo, topped carrots 7-9 mo, pungent dry onions 6-9 mo, and topped/red beets 4-6 mo (air) to 8-10 mo (refrigerated) at the other OT_210. The long-storage staples (cabbage, carrots, dry onions, beets, potatoes) are the ones that let a community carry produce through winter — the qualitative point the sibling Mason source makes, here made quantitative per crop.
  2. Storage duration comes bundled with its required conditions. Each duration is only valid at a stated temperature and RH (mostly 0 °C / 98-100% RH; dry onions the exception at 65-75% RH), which are the setpoints that drive the cool-store’s energy load (the kWh/m³/yr coefficients from the sibling Evans/Frater sources). A single chilled store at ~0 °C / high-RH serves most crops; dry onions want low RH, a genuine design split.
  3. Use the crop-profile figures, not the summary-chart figures, for the optima. The p.1 chart’s “Max Time Held (Weeks)” is systematically conservative for storage crops (chart topped-carrot 16-20 wk vs profile 7-9 mo; chart topped-beet 7-8 wk vs profile 4-10 mo). For a self-sufficiency model that wants best-achievable winter carry-over, the crop-profile “Optimum Storage Conditions” durations are the right input; the chart figures are a conservative floor.

data_quality: high, but US and HB66-derived (not independent). The guide restates USDA Handbook 66 (also in this drop), so it corroborates rather than independently confirms HB66; and it is US, not NZ. The shelf-life patterns transfer to a NZ community store, but this is a horticultural-physiology reference (largely climate-independent), so the proxy caveat is lighter here than for the load/cost coolstore sources.

Underlying / related sources

  • USDA-ARS, Agriculture Handbook 66 — “The Commercial Storage of Fruits, Vegetables, and Florist and Nursery Stocks” — the authoritative USDA reference this entire guide is “Adapted from” (p.1 footnote). It is held separately as OT_209; the two are not independent evidence — Cornell restates HB66 in extension-guide form. Where a single authoritative shelf-life figure is needed, prefer HB66; this guide is the more readable per-crop summary.
  • Per-crop postharvest literature cited within the profiles (e.g. Lipton 1990, Suslow 1998/2001, Boyette et al., Snowden 1991, Forney & Jordan 1999) — the original horticultural sources behind individual crop sections; single-source, not separately ingested.

Notes

  • Verified against the raw. Every figure above was extracted with pdftotext -layout and confirmed verbatim against the raw PDF. The sha256 (d0de7aea…) is of the single PDF file.
  • Cabbage correction (the load-bearing fix). Cabbage = 12-16 weeks (p.1 chart) at 0 °C / 98-100% RH (p.13 profile). The 4-week figure a downstream compiled-research synthesis assigned to cabbage is head lettuce (“Lettuce, head”, 2-4 weeks, same chart). This page carries cabbage at 12-16 weeks and does not reproduce the error.
  • Undated (n.d.). The guide carries no publication date; year: is left blank. It is “Adapted from USDA bulletin #66”, whose current revision is 2016, so the guide post-dates that, but no date is printed on the document.
  • Two internal inconsistencies (flagged, not errors in our extraction). (1) Summary-chart RH (90-95%) is lower than the crop-profile RH (98-100% for broccoli/cabbage/carrot; 98% for beets) — the crop profile is the fuller figure. (2) The chart’s “Max Time Held (Weeks)” is more conservative than the crop-profile storage-life optima for storage crops — read the chart as a conservative marketable-life floor and the profile as the optimum long-term storage life. Both are recorded so downstream use does not mis-cite one as the other.
  • US context (transferable). Cornell Cooperative Extension (New York) guide; shelf-life patterns are horticultural physiology and transfer to a NZ community store, but the source is not NZ. No nz_specific topic.
  • Authoritative first-party PDF (downloaded Cornell CVP extension document, not an AI-synthesised file).

Research targets

Documents to retrieve

  • None opened. The one authoritative reference behind this guide, USDA Handbook 66, is already held as its own primary (OT_209), so no retrieval target is needed.

Research gaps

  • NZ-specific crop shelf-life table. These durations are US (Cornell/USDA HB66); an NZ postharvest reference (e.g. Plant & Food Research / HortNZ storage guidance) would give locally-calibrated storage lives for NZ-grown cultivars. Recorded as a modelling caveat rather than a new target — the shelf-life patterns are largely climate-independent horticultural physiology, so the US figures are a sound default; an NZ recalibration is a refinement, not a blocking gap.

Connections

Links to

Sources (1): OT_209

Referenced by

EDT domains (1): D02: Smart Food Systems & Agriculture

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