Where Does All That Costco Produce Actually Go? The Answer Is More Interesting Than You'd Think
Every man who has ever pushed a flatbed cart through the wide aisles of a Costco warehouse has had the same quiet, passing thought: what happens to all of this stuff when the day is over? The five-pound bags of baby spinach, the bulk blueberries, the towering pallets of avocados — nobody buys everything. The scale of it is staggering, and the question of what happens to leftovers is one that cuts straight to the core of how America's most iconic warehouse club actually operates behind the scenes.
The answer, it turns out, is not a landfill. Not by a long shot. Costco arguably has one of the most comprehensive and transparent plans to reduce food waste of any major American retailer, and when you dig into the mechanics of that plan, it reveals something genuinely worth knowing about — both for the sustainability-minded consumer and for anyone who has ever wondered whether their $65 annual membership is supporting a company with any ethical backbone.
The Scale of the Problem: America's Food Waste Crisis in Context
Before understanding what Costco does specifically, it's worth placing the problem in its full, sobering context. According to ReFed, a nonprofit working to reduce food waste, the United States produced 70 million tons of surplus food in 2024 — that's 29% of total food production. That is a number that defies easy comprehension. Nearly one third of everything grown, raised, packaged, and shipped across this country never makes it to a plate.
Retail giants sit squarely in the middle of this problem. Grocery stores and warehouse clubs move enormous volumes of perishable product — produce especially — and the logistics of keeping fresh food fresh while matching supply to unpredictable consumer demand is an imperfect science. Items get damaged in transit, bundles lose a single piece and become unsellable, and consumer buying patterns shift with the weather, holidays, and local events. Every store has shrink. The question is what you do about it.
Costco has a waste reduction program guided by its Sustainability Commitment, which includes a 2019 goal to divert 80% of its food waste from landfills. That goal wasn't aspirational hand-waving — the company actually beat it. The 2025 Annual Sustainability Report noted that the brand successfully kept 82.8% of its food waste from landfills that year, exceeding the goal it set in 2019. To put that in concrete terms, in fiscal year 2025, Costco diverted more than 1.7 million tons of unsold products, recyclable materials and hazardous waste away from landfills.
The Blueprint: How Costco Decides What Goes Where
Costco doesn't improvise its way through the end-of-day surplus problem. The company operates according to a formal decision hierarchy. Reducing food waste is built into the way Costco operates. Costco uses the EPA Wasted Food Scale, a hierarchy of steps for handling food waste, to guide its decisions in diverting leftovers from the landfill. The EPA's framework — sometimes called the Food Recovery Hierarchy — prioritizes outcomes in a specific order: source reduction first, then feeding people, then feeding animals, then industrial uses like anaerobic digestion, and finally composting, with landfill or incineration as the absolute last resort.
What doesn't sell is used in four main program categories: donations, new products, animal feed, and recycling. Each of those categories has its own ecosystem of partners, logistics, and outcomes. Understanding each one reveals a supply chain running in reverse — taking things that would otherwise become waste and routing them somewhere productive.
Step One: Making New Products In-Store
The highest-value use for any unsold food is turning it back into something a paying customer will buy. Costco has been quietly doing this for years, and the rotisserie chicken is the most famous example. Rotisserie chickens are given a strict two-hour shelf life to sit in the hot display for customers to buy. If they're not sold within this timeframe, they are removed and repurposed in the deli, where items are made in-house on the same day.
The range of products created from that reclaimed protein is broader than most shoppers realize. Costco says the chicken is used in a wide range of deli items, including pot pies in the U.S. and enchiladas in the U.K. Leftover rotisserie chicken is repurposed into new member offerings like chicken noodle soup and pot pies, while unsold ground beef is used for the likes of deli stuffed peppers or meatloaf. One Costco employee on Reddit pulled back the curtain even further, sharing that "The leftover rotisserie chickens get harvested and used in some of the food such as chicken Alfredo or soup. The wings and ribs get repackaged and sold cold in the deli section."
Even the grease doesn't go to waste. Rotisserie chicken grease is transformed into biofuel. That's a detail that most people browsing the food court have no idea about — the same bird that gets roasted and sold at a loss as a customer traffic driver is eventually contributing to the energy grid.
The same logic applies to produce. Aside from donations to food banks, food that can still be used in-store can become new products, such as chicken salad made from day-old rotisserie. Fresh produce that has passed its prime for direct sale but is still entirely safe to eat gets folded into prepared foods, extending its useful life inside the same four walls where it was first offered to shoppers.
The Donation Pipeline: 140 Million Pounds and Counting
When in-store repurposing isn't an option — produce that's past its usable culinary window, or food in quantities too large to absorb into the deli operation — Costco routes it to a network of charitable organizations with remarkable scale. Costco donates unsold food in partnership with Feeding America, The Global FoodBanking Network, and local food banks.
The numbers attached to this program are hard to argue with. In 2025 alone, Costco says it donated over 140 million pounds of unsold, edible produce and other goods to Feeding America — a network of food banks. That figure represents food that was heading toward a dumpster and was instead redirected to families who genuinely needed it. The Feeding America network alone supports tens of millions of Americans annually, and Costco's contributions represent a meaningful slice of what keeps those shelves stocked.
The experience plays out at the ground level in ways that resonate. An r/Costco thread included a volunteer from a local food pantry who described the relationship bluntly: "I volunteer several days a week at a food pantry. Costco delivers to us twice a week. They're incredible!" That kind of community-level impact — Costco trucks showing up twice a week at neighborhood food pantries — is a consequence of policy decisions made in corporate boardrooms that rarely make headlines.
What Kinds of Food Get Donated?
The composition of Costco's donated food skews heavily toward the most nutritionally valuable categories. The brand's 2025 Annual Sustainability Report noted that about 74% of the food it donated in the United States was composed of produce, grains and bread, and dairy and protein. Within that breakdown, 46.9% of the donations were produce. Nearly half of everything Costco donates to food assistance programs is fresh produce — exactly the kind of food that food-insecure households struggle most to access, and exactly the kind that's most likely to go to waste without a fast and efficient logistics system to redirect it.
Costco's partnership with the Greater Vancouver Food Bank is a great example of the benefits of this program, as it donates both food and funds. This partnership aligns with Costco's broader initiative of supporting food banks across North America by donating surplus produce, bread, protein, and dairy, as well as making monetary contributions. The combination of product donations and financial support gives food banks the flexibility to address both immediate inventory needs and longer-term operational gaps.
When Produce Isn't Fit for People: Animal Feed Programs
Not everything that doesn't sell can be donated to a food bank. Some produce has degraded to a point where it no longer meets the quality and safety thresholds required for human consumption. That's where farms come in. The company sends excess produce to farms, where it is repurposed as nutritious feed for livestock. What a cow or a pig will consume — and thrive on — is substantially different from what passes a food bank's quality bar, and Costco has built systems to reach both destinations.
Costco's bulk business model actually generates more of this kind of partially-compromised produce than a standard grocery store would. Stephanie Scott, a farmer who receives unsold fruit from her local Costco, explained the quirk of the warehouse format clearly. Scott explained that Costco's unique business model has much to do with the ample amounts of unsold fruit her farm receives, stating, "If a bundle of bananas has one that is damaged, they have to toss the whole bundle, unlike a grocery store that could rip off the bad one and sell the rest." This is because the chain keeps track of its bulk items according to weight.
The result is a pipeline of food that is nutritionally sound but cosmetically or structurally disqualified from the warehouse floor. While safe for livestock to consume, the produce that Scott receives from Costco to feed the animals in her farm doesn't offer the same quality as items on sale in the store. But that distinction matters far less to livestock than it does to a shopper wheeling a cart through the produce section. Bruised bananas and misshapen carrots feed animals just as effectively as perfect ones do.
The scale of this program in Costco's 2025 reporting is substantial. The 2025 global waste report noted that over 12,000 tons of animal feed were donated to animal rescue programs, zoos, and farms. Zoos represent a particularly interesting destination — exotic animals have specific dietary needs that can often be met effectively with imperfect produce, and the coordination between Costco's waste stream and zoological institutions demonstrates how broad the potential applications of this system actually are.
The Last Resort That Isn't a Landfill: Recycling and Energy Recovery
For food that has moved beyond human consumption, beyond animal feed, and beyond any other usable form, Costco has built out a set of industrial end-of-life solutions designed to extract maximum value before anything touches a landfill. Other food waste is recycled to be used as fertilizer, turned into biofuels, converted to electricity, or composted. In 2025, about 12,000 tons of leftovers became compost and 16,000 tons were converted to useful products by anaerobic digestion.
Anaerobic digestion — the industrial process by which organic matter is broken down in oxygen-free environments to produce biogas — is one of the more technologically sophisticated legs of Costco's waste management operation. Costco's biofuel conversion program for unsold food represents a technology-forward waste management approach. The biogas produced through anaerobic digestion can be used to generate heat and electricity, meaning that a crate of strawberries that nobody bought on Thursday might be contributing to powering the lights in someone's home by the following week.
Some Costco employees have described in-store systems that process food waste at the warehouse level rather than shipping it off-site. One Reddit user described a machine nicknamed "The Harvester" that processes unsold deli and food court items at the end of the day. According to the post, these items are removed from their packaging and fed into a specialized machine that pulverizes the waste. The user noted the system was purportedly designed "to make compost/fertilizer." This comment tracks with Costco's own statements about diverting food waste from landfills.
Costco's Bulk Model: A Double-Edged Sword for Waste
There's an inherent tension at the center of the Costco story on food waste. The warehouse format — which is the source of so much of the brand's consumer appeal — also creates structural waste challenges that a traditional grocery store doesn't face to the same degree. Selling in bulk means that individual items within a bundle can't be separated and sold individually when one piece is compromised. A flat of mangoes goes together or it doesn't go at all. A multipack of peppers lives and dies as a unit.
This reality means Costco's waste diversion system needs to work especially hard because the upstream conditions generate more difficult-to-move surplus than smaller-format retail. The company's response has been to build a waste management infrastructure that is correspondingly ambitious, using partnerships, internal processes, and industrial technologies in combination rather than relying on any single solution.
While the donations help address feeding the hungry and helping people in need, they also help Costco run its business efficiently by reducing costs through the diversion of the donated products from the landfill. That dual benefit — social impact and operational cost reduction — is not coincidental. It's the reason sustainability programs actually survive inside large corporations: they have to make business sense, not just ethical sense.
How Costco Stacks Up Against the Broader Retail Industry
Costco's approach doesn't exist in a vacuum. Other major American retailers have their own food waste programs, and the EPA's Wasted Food Scale has become something of an industry standard framework. Whole Foods, for instance, repurposes imperfect produce into smoothies and prepared dishes in-store. Walmart uses a Food Disposition Pyramid to guide its own surplus decisions. But the data suggests Costco's execution is running ahead of the industry average.
On waste, Costco performs better. The company has thorough food waste reduction initiatives and reporting, offers multiple models to promote consumer reuse and recycling, and provides detailed corporate waste reporting. Transparency is itself a meaningful differentiator here — many retailers have vague sustainability commitments that don't include specific tonnage targets or third-party reporting. Costco publishes an annual Global Waste Report that includes actual numbers.
The 2019 goal to keep 80% of food waste out of landfills — now surpassed at 82.8% — was set with a specificity that invited accountability. It's easier to measure progress against a concrete target than against a general aspiration to "do better," and the public nature of the commitment creates external pressure to actually deliver.
The Men Buying the Rotisserie Chicken Have More Leverage Than They Realize
There's a practical takeaway buried in all of this that goes beyond corporate policy analysis. The guy loading a $5.99 rotisserie chicken into his cart is participating in a system that, by design, generates zero waste from that particular bird. The chicken gets sold, or it feeds a community, or it ends up as pot pie, or its grease goes into a biofuel tank. Nothing gets thrown away. Every link in that chain is intentional.
For the Costco member, this matters for a few reasons. First, it's a signal that membership fees are supporting a company that has built real infrastructure around ethical operations — not just marketing language. Second, the produce section deserves a second look. Costco's effort in partnering with food banks involves donating items that don't meet its strict quality standards but are still perfectly good for consumption. The standard that Costco applies to what leaves the warehouse floor is high — meaning what gets donated was genuinely close to sale quality, and what makes it to animal feed or composting is operating at the true end of its useful life.
Third, and perhaps most practically: the prepared foods at Costco's deli counter that come from repurposed chicken, beef, and produce aren't leftovers in any pejorative sense. They're the deliberate result of a system designed to extract maximum value from every item that enters the building. Knowing that the chicken noodle soup came from the same rotisserie birds that were on the counter two hours earlier isn't a reason for skepticism — it's a reason to appreciate the efficiency of the operation.
What Remains to Be Done
For all its progress, Costco's system isn't seamless. There is anecdotal evidence that execution varies by location. One person on social media noted, "Some warehouses donate them but others toss everything in the garbage." Uniformity across more than 800 warehouses is genuinely difficult, and the company's own reporting acknowledges that diversion rates can shift based on local infrastructure, available food bank partnerships, and the practical capacity of nearby farms to absorb animal feed.
The food waste problem at the national level is also still enormous. Even Costco's 140 million pounds of annual donations, while significant, are a fraction of what the nonprofit ReFed estimates is wasted across the entire American food system. The gap between what is possible and what is actually happening at the industry level remains vast, and the pressure on retailers — driven by consumer expectations, ESG reporting requirements, and increasingly specific municipal food waste regulations — is only going to intensify.
Still, the architecture Costco has built — the Feeding America partnerships, the animal feed logistics, the in-store repurposing programs, the anaerobic digestion and composting pipelines — represents a genuinely serious attempt to solve a problem that most of the industry either ignores or pays lip service to. The man who shows up at Costco every other weekend for olive oil and coffee beans is, whether he thinks about it or not, a participant in one of the more sophisticated food recovery systems in American retail. That's worth knowing.
