The links on this page have been compiled as resources for those interested in learning more about crop storage, with a particular focus on fruits and vegetables and winter crops.
Please let us know if you have other resources you’d like to see included or if you find any errors in the information.
Other Resource Sites
University of Massachusetts Vegetable Program Post-Harvest and Storage Resources – This site hosts a variety of great resources including a cold storage engineering overview provided by Stephen Belyea (Maine Department of Agriculture, Food, and Rural Resources) and Crop Storage Facilities Overview by Luke Doody (UMass).
Cold Storage Options for Small‐Scale Diversified Farms in the Northeast. G. Mason. Green Mountain College. December 2012 – A final report on a research project aimed at documenting current storage practices among small, diversified producers in New England.
Walk-in Coolers for Winter Storage – Community Involved in Sustaining Agriculture (CISA) checked in with some experts—farmers and engineers—to develop resources for farmers interested in on-farm winter storage options. Part of a broader USDA NESARE project run through UMASS Vegetable Program.
Store-It-Cold’s Guide to Building Your Own Walkin – A guide to resources on building your own walkin cooler from the inventor of the CoolBot(TM).
Barr Refrigeration – A national supplier or new and used cooler systems included refrigration systems.
Conditions & Practices
USDA Handbook 66 – The Commercial Storage of Fruits, Vegetables, and Florist and Nursery Stocks. A guide to long term storage of crops. The handbook is dense with info on optimal storage conditions for everything from Jerusalem Artichokes to Watercress. Each crop is given a brief overview which summarizes the expected loss when stored at certain conditions and also a summary of respiration rates to help with the sizing of any refrigeration that may be needed.
New England Vegetable Management Guide – This is a comprehensive guide for commercial vegetable growers with information on current production and pest management techniques for vegetable crops.
Refrigeration and Controlled Atmosphere for Horticultural Crops (NRAES-22) – This publication provides an overview of refrigeration systems with relevance to horticulture.
UC Davis Post Harvest Technology Center – Postharvest fact sheets, libraries, workshops, etc. “Through the postharvest research and extension programs of 11 Extension Specialists, we strive to provide relevant information to California growers, shippers, marketers, carriers, distributors, retailers, processors, and consumers of fresh horticultural crops.”
Cornell Cooperative Extension Storage Guidelines For Fruits & Vegetables - This fact sheet includes a nice table which summarizes the most common storage “zones” or “groups” based on temperature and humidity.
A Basic Overview of Refrigeration Systems – An overview of the main components and operation of a basic refrigeration system. Best paired with this video.
Heatcraft Engineering Manual – A collection of cooler and refrigeration sizing resources and guidelines from a refrigeration equipment manufacturer. Includes optimal storage conditions (Temperature and RH) for common fruit and vegetable crops as well as specific heat (for doing pre-cooling calculations) and bulk packing density (for sizing coolers).
CoolBot(TM) Overview – Chris’ blog post summarizing CoolBots(TM) with links to several other related resources.
Psychrometric Chart – Ambient Pressure – Low Temperature
Psychrometric Chart – Ambient Pressure – Normal Temperature
Psychrometric Calculator (online)- An online calculator for determining combinations of dry bulb, wet bulb, RH, dew point, etc.
Quick Refrigeration Load Calculator Online – US Cooler’s quick and dirty cooling load calculator for a rough estimate.
How to Use a Sling Psychrometer – This is still considered the best way to accurately measure dry-bulb temperature and wet-bulb temperature in order to arrive at a measure of relative humidity.
Food Safety Resources
UVM Extension Center for Sustainability Good Agricultural Practices resource page.
Iowa State Leopold Center PowerPoint/PDF – Summarizes Good Agricultural Practices and available resources.