UVM Extension with support from the USDA’s Northeast Sustainable Agriculture Research and Education program will offer five one-day workshops on crop storage throughout Vermont this fall. Workshops will focus on long-term storage of crops for sale through the winter and into early spring, but will be relevant to many agricultural and food storage needs. Topics …
Author Archives: Chris Callahan
Vermont On-Farm Biodiesel – Costs of Production
I recently co-authored a summary of the economics of on-farm biodiesel with Netaka White from the Vermont Sustainable Jobs Fund. This report collects the economic and logistic learning from the past seven years of the Vermont Bioenergy Initiative (VBI). The VBI has supported a wide range of sustainable fuel related efforts in Vermont. Along with …
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How Refrigerators Work: “Principles of Refrigeration”
1944 US Office of Education video on refrigeration principles. Excellent. http://www.youtube.com/watch?v=XADVDjzFW-4&feature=endscreen
Practical Produce Safety – April 11, 2013 – Vergennes/Monkton
Had a great time talking about all the ways we can get sick from produce related pathogens yesterday. The good news is that the bulk of the workshop was focused on ways to mitigate the risks. The Practical Produce Safety workshop series coordinated by Ginger Nickerson (UVM Center for Sustainable Agriculture) and Hans Estrin (UVM …
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CoolBots(TM): Inexpensive Cold Storage
A downloadable PDF of this blog post is available here. Demand for on-farm cold storage of produce is increasing as local markets for these goods expand. Many local producers are asking about CoolBots™, a tool that works with a window air-conditioner to make a cooler out of an insulated space. This article collects information about CoolBots …
Energy and Waste in the Food System
Although estimates vary, we invest about 14 calories of fossil fuel-based energy and 15-20 calories of energy in general into every 1 calorie of food produced. And (here’s the kicker) 30-50% of the food produced never makes it to a digestive track. So those energy input numbers are actually low by any true measure of …
FIDO – A Do-it-yourself Temperature Monitor with Text Message Alerts
As I’ve mentioned in several other posts, I think the continual monitoring of conditions in greenhouses and food storage spaces is incredibly important for quality and safety and insightful for any operation. There is a really clever design for a do-it-yourself temperature monitoring system called Fido, on the FarmHack site. It uses an Arduino control …
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Wash and Pack Stations
This is a great video overview from the Cornell Cooperative Extension Small Farms Project with helpful guidance on wash and pack station layout. More on the Cornell Small Farm Project can be found here. This video was part of a NE-SARE funded project. Some highlights: Cover – prepare for all conditions; rain, wind, cold, heat …
Bioenergy NOW!
The Vermont Bioenergy Initiative, a project of the Vermont Sustainable Jobs Fund recently released a series of videos summarizing their bioenergy related projects through-out Vermont. Visit the YouTube channel for all the videos.
2013 VVBGA Annual Meeting
I had the pleasure of joining the Vermont Vegetable and Berry Grower’s Association yesterday for their annual meeting. This event is packed with presentations ranging from the latest pests to farmer outreach in distant lands. My talk was on crop storage, and it was a great chance to summarize my recent work in this area. …