Gleaning is the act of collecting excess fresh food from farms, gardens, farmers markets, grocery stores, restaurants, and other sources to distribute it to people in need. It’s one of the oldest forms of food recovery, and today it operates as an organized effort to rescue perfectly edible produce that would otherwise go to waste. Hundreds of gleaning organizations across the United States coordinate volunteers to harvest surplus crops from fields, collect unsold items from markets, and even pick fruit from residential trees, routing all of it to food banks, pantries, and soup kitchens.
Where Gleaning Comes From
The practice dates back thousands of years. In the Hebrew Bible, the widow Ruth sustained herself by gleaning leftover grain from the fields of a wealthy farmer named Boaz. This story helped establish gleaning as a social obligation: landowners were expected to leave a portion of their harvest behind for the poor, widows, and travelers. That expectation carried forward into European rural life throughout the Middle Ages, where the legal right to glean from harvested fields became a recognized custom. Modern gleaning organizations draw on this same principle, but they’ve formalized it with logistics, liability protections, and partnerships with food distribution networks.
Why So Much Food Needs Gleaning
The scale of food loss at the farm level is staggering. The United Nations Food and Agriculture Organization estimates that 30 percent of global food loss occurs during agricultural production and harvest. Produce gets left behind for all sorts of reasons: it’s cosmetically imperfect, market prices have dropped below the cost of harvesting, or a buyer’s order falls through after the crop has already grown. None of these reasons have anything to do with whether the food is safe or nutritious. A tomato that’s slightly too small for a grocery store display tastes the same as one that makes the cut.
Beyond the farm gate, another 18 percent of food loss happens at the retail and distribution stage, where grocery stores, farmers markets, and restaurants regularly discard unsold items. Gleaning programs target both of these points in the supply chain, catching food before it ends up in a landfill.
How a Glean Works in Practice
Organized gleaning follows a fairly standard process, whether the source is a 200-acre farm or a weekend farmers market. First, a gleaning coordinator identifies donors. This might mean contacting individual farmers, reaching out to a farmers market manager, or connecting with grocery stores that have surplus stock. The USDA recommends contacting your state’s USDA office to find farmers in your area who may be willing to participate.
Next comes finding a recipient organization that can actually handle fresh food. Not every food bank or pantry has the refrigeration, kitchen equipment, or staffing to process perishable donations quickly. This is a real bottleneck: gleaned food is fresh, which makes it nutritionally valuable but also time-sensitive.
Once a donor and recipient are matched, the coordinator recruits volunteers and prepares for the collection day. Preparation includes confirming the exact time and location, how the donated food will be identified (which rows of a field, which crates at a market), and how many boxes or containers to bring. On the day itself, volunteers collect the food, weigh it on-site, and provide the donor with a receipt documenting the donation for tax purposes. The food then goes directly to the receiving organization for distribution.
Collection methods vary. Some donors prefer to leave crates at a designated spot for later pickup. Others have volunteers come through the field or market individually. Well-run programs build repeatable systems so that a single farm might host multiple gleans throughout the growing season.
Legal Protections for Donors and Volunteers
One of the biggest barriers to food donation has always been fear of lawsuits. If someone gets sick from donated food, can the donor or volunteer be held liable? Federal law says no, with very few exceptions. The Bill Emerson Good Samaritan Food Donation Act, passed in 1996, provides broad protection. A person or gleaner who distributes apparently wholesome food in good faith to a nonprofit organization is not subject to civil or criminal liability. The only exception is if the donor or gleaner acted with gross negligence or intentional misconduct.
The law also protects property owners who allow gleaning on their land. If a volunteer is injured while picking produce on a farm, the property owner is shielded from liability unless the injury resulted from gross negligence or intentional harm. These protections apply to both paid and unpaid representatives of nonprofit organizations. Gleaning coordinators typically inform potential donors about these protections early in the conversation, since many farmers and grocers assume (incorrectly) that donating food exposes them to legal risk. Donations can also be tax-deductible, which provides an additional incentive.
The Scale of Organized Gleaning
Gleaning organizations range from small community groups to operations recovering millions of pounds of produce annually. A 2020 census of gleaning organizations documented some of the largest programs in the country. Boston Area Gleaners reported collecting more than four million pounds of produce annually. The Arkansas Gleaning Project recovered 1.2 million pounds in 2020, Food Forward in California collected over a million pounds, and organizations in Florida and New Jersey each reported hundreds of thousands of pounds.
These numbers represent just a fraction of what’s available. With 30 percent of food lost at the production stage globally, the gap between what gets gleaned and what could be gleaned remains enormous. Most gleaning organizations are limited by volunteer availability and the logistics of getting perishable food from point A to point B before it spoils.
Environmental Benefits
When food ends up in a landfill, it decomposes without oxygen and generates methane, a greenhouse gas far more potent than carbon dioxide in the short term. Landfills produce this gas for years, and even with capture systems in place, significant emissions escape into the atmosphere. Diverting organic waste from landfills is one of the most effective strategies for reducing these emissions.
Every pound of produce that gets gleaned and eaten instead of buried is a pound that won’t generate methane. It also means the water, fuel, fertilizer, and labor that went into growing that food weren’t entirely wasted. This is why food recovery sits near the top of the EPA’s food recovery hierarchy, above composting and well above landfilling. Gleaning is one of the simplest ways to move food from the “waste” column to the “fed someone” column.
How to Get Involved
If you want to volunteer, the easiest starting point is searching for gleaning organizations in your area. Many operate through food banks or cooperative extension services. A typical volunteer shift involves a few hours of physical work, often outdoors: picking vegetables, loading crates, or sorting produce at a market. No special training is usually required, though organizations will brief you on what to pick, how to handle it, and where to put it.
If you’re a farmer, gardener, or even a homeowner with a fruit tree producing more than you can eat, you can donate that surplus. Gleaning organizations will often send volunteers to do the harvesting themselves, so the main thing you’re contributing is access and permission. The legal protections under federal law mean the risk to you is minimal, and the tax deduction for donated food can offset some of the value you’d otherwise lose.