The Thing About Rinsing Your Recyclables

A land steward's take on a piece of household orthodoxy that doesn't quite hold up.

I was rinsing out a milk jug at my kitchen sink the other day, hot water running, sloshing it around to break up the film of dried milk along the inside, and I caught myself doing the math.

We're in the third year of on-and-off drought across most of Central Texas. The Edwards Aquifer just dropped from Stage 4 to Stage 3 restrictions a week ago, and only because spring rains pulled J-17 back above 632 feet. Comal Springs is flowing at less than half its long-term average. Lake Travis has been on a slow decline since the floods of July 2025 that briefly made everyone forget we'd been in a multi-year dry spell. And here I was, running treated, pumped, chlorinated drinking water through a plastic jug — probably half a gallon by the time I was satisfied it was clean — so it could be sent to a sorting facility, baled, sold to a broker, and turned back into another jug. That last part is actually the optimistic case. Plenty of jugs don't make it that far.

I stopped rinsing and looked at the jug.

I want to be careful here, because I'm not writing a screed against recycling. I'm writing about a particular piece of household environmental orthodoxy that I think a lot of us absorbed without ever asking whether the math actually works out. The story we've all been told goes something like: rinse every container thoroughly, because a single dirty one can contaminate thousands of pounds of recycling and ruin everyone's effort. I've heard versions of that line for years. I've watched my own family treat it as gospel.

Turns out it's mostly wrong, in interesting ways. And the actual answer matters, especially for those of us who live in a part of the world where the long-term water picture is anything but reassuring.

What the recyclers actually say — and whose job this is

When I went looking for the source of the "thoroughly rinse everything" rule, I expected to find a unified industry position. I didn't. What I found was a slow, uncoordinated walk-back over the last several years from most of the major haulers and municipal programs.

Waste Management — the largest residential recycler in the country — now says containers should be "clean enough to avoid contaminating other materials." Not spotless. Republic Services says "empty, clean, and dry," with the cleaning level described as enough to keep residue from leaking onto paper. The City of San José, in their official guidance, is even more direct: residents do not need to rinse recyclables with water before placing them in the recycling. Empty and scrape, they say. That's it. Chicago's recycling processor (LRS) says glass and plastic bottles and aluminum cans for water, soda, beer, and wine just need liquids dumped out — no rinse required at all.

The "one dirty jar contaminates a thousand pounds" story is technically true under specific conditions, but it's been stretched into a catch-all. The actual mechanism is narrower than the slogan suggests. Modern single-stream recycling — where glass, metal, plastic, and paper all go in the same bin — is genuinely vulnerable to one specific failure mode: liquid contamination of paper. If a half-full bottle of milk tips over in the truck and soaks into a load of cardboard, that paper becomes unrecyclable. Wet fiber molds, falls apart in sorting machines, and gets pulled out as residual.

That's a real problem, and it's the reason emptying containers is non-negotiable. Putting a half-gallon of milk in the recycling bin is inexcusable, and not because you're failing the system — it's because you're handing your neighbor's perfectly good cardboard, and the labor of the sorters who handle it, a problem you could have solved by pouring it out. Decent neighbors empty their containers. That's a low bar.

But "empty" is not the same as "thoroughly rinsed." A peanut butter jar with a smear of peanut butter on the inside walls doesn't sink the load. It travels through the system, gets baled, gets sold, and at any reprocessor handling PET or HDPE the first step of the actual recycling process is a hot caustic wash that obliterates anything you could have done at your sink anyway. And here's the part the messaging tends to leave out: the people running that hot caustic wash are running a business. Recycling, for the materials that are actually worth recycling, is profitable. Aluminum cans are typically the single most valuable item in your bin — a third of the revenue at a typical materials recovery facility comes from used beverage cans. Cardboard moves real money. Steel, glass, and PET have functioning markets too.

This matters because it reframes the whole question of whose job it is to keep the stream clean. If a hauler's business model can't tolerate a smear of peanut butter on a jar that's about to be hot-washed anyway, that's an industrial design problem on their end — sorting technology, MRF capability, processing tolerance. It is not a moral failing on your end for not running enough drinking water through the jar. The contamination thresholds are their economic constraint to engineer around. They're the ones with the equipment, the volume, and the revenue.

The line we should draw is somewhere reasonable: empty the container, scrape out solids, don't pour liquids in. Beyond that, if a recycler needs more, they can invest in the equipment to handle it. They're the ones making money on the back end. The current arrangement — where a person on a private well during a drought is expected to spend treated water cleaning packaging that will be sold for revenue by a multibillion-dollar waste company — is upside down.

So the real, honest rule, with the responsibility back where it belongs: empty, scrape, dry. If a container needs more cleaning than that, the trash is genuinely a fine answer. Running the tap for two minutes on a yogurt cup is the worst of all options — it doesn't make the recycling more recyclable, and it costs water you'll wish you had in August.

And while we're here: the pizza box

Worth its own beat, because almost nobody's gotten the updated message yet.

For most of the curbside-recycling era, the rule was: greasy pizza boxes are landfill. The grease ruined the cardboard, the cheese gummed up the pulping process, the whole box was lost. A generation of conscientious recyclers learned to tear the top off and throw the bottom away, or just trash the whole thing.

That rule is wrong, and has been for a while.

In 2020, WestRock — one of the largest cardboard producers in North America — ran a peer-reviewed study on what grease and cheese contamination actually does to pizza box recycling. The findings were unambiguous. Average grease content on a used pizza box is 1 to 2 percent by weight. Fiber strength loss only starts to become measurable around 10 percent grease, and doesn't significantly interfere with the recycling process until you hit 20 percent — roughly ten times the average box. Cheese chunks dissolve or get screened out during the pulping stage. The American Forest & Paper Association endorsed the methodology, and most of their member mills now accept pizza boxes outright. About 73 percent of the U.S. population currently has access to a recycling program that takes them.

So what happened? The technology got better. Paper mills improved their screening, the equipment caught up to the input, and the original concern — which was real in the early curbside-recycling era — became obsolete. But the consumer-facing message didn't update. Most municipal websites still tell you to throw greasy pizza boxes in the trash, and most people still do.

The numbers here are actually meaningful. Americans use about 3 billion pizza boxes a year. That's roughly 600,000 tons of corrugated cardboard. If even a portion of that went into the recycling stream instead of the landfill, it would be one of the larger single-product wins available in residential recycling — bigger than most of the things people actually obsess about.

The current rule, then, is straightforward. Take the pizza out. Brush off any loose crust or pepperoni. Drop the box in the recycling, grease and all. If the bottom is genuinely soaked through and falling apart, tear that part off and toss it; the rest of the box is fine. If your local hauler still officially refuses pizza boxes — some do, mostly out of habit — composting is the better fallback. Cardboard composts well, and a greasy pizza box buried in the carbon layer of a compost pile is a perfectly good source of brown matter. (More on composting in a minute.)

The thing I want you to notice about the pizza box story is that it's the exact same shape as the rinsing story. The recycling industry's capabilities improved, the actual constraint loosened, the consumer-facing rule didn't get updated, and the burden of an outdated rule kept getting carried by the household. Six hundred thousand tons of cardboard a year is a lot of trees that didn't have to be cut down because somebody at a recycling facility forgot to update their website.

But here's where it gets uncomfortable

Even if you do everything right — empty, scraped, properly sorted — what actually happens to the material once it leaves your curb is not the story most of us were told.

The number to anchor on, for plastic specifically, is around five to six percent. That's the most defensible recent estimate of how much U.S. plastic waste actually gets recycled into new material. Not nine percent — that older figure was inflated because it counted plastic exported to China and other countries as "recycled" regardless of whether those countries actually recycled it. After China's National Sword policy in 2018 stopped accepting most foreign plastic waste, the real domestic recycling rate became visible, and it's worse than most people assume.

Roughly 85 percent of U.S. plastic waste ends up in landfills. Another chunk gets incinerated. A meaningful slice gets exported to countries with weaker waste infrastructure — primarily Malaysia, Vietnam, Thailand, Indonesia, Turkey, and several others that took China's place — where a real fraction of it is mismanaged. Some of it gets dumped, some burned in the open, and some leaks into rivers and ultimately oceans. The U.S. is not directly dumping recycling in the Pacific. But we are exporting waste to countries whose waste-management systems we know cannot handle it cleanly, and the result is the same.

This is not a conspiracy theory. It's been documented in trade data for years now. The Center for Climate Integrity published a report in 2024 — "The Fraud of Plastic Recycling" — that compiled internal industry documents showing the petrochemical industry knew, going back to the 1970s and 1980s, that plastic recycling could not work at scale. A 1989 conference statement from the founding director of the Vinyl Institute: recycling cannot go on indefinitely, and does not solve the solid waste problem. A 1994 statement from an Exxon employee about the industry's plastic recycling demonstration projects: we are committed to the activities, but not committed to the results. California's attorney general is currently suing ExxonMobil over this.

The polite version of what happened is that an industry facing public backlash over disposability promoted recycling as the answer for half a century, knowing it wasn't going to work, in order to keep selling virgin plastic. The less polite version uses the word "fraud," which is the word the lawsuit uses.

The part that isn't fraud

I want to be careful not to swing the pendulum too far. Plastic recycling is mostly broken. All recycling is not. This is where the household conversation usually goes wrong, because we treat the bin as a single thing when in fact it's holding very different materials with very different stories.

Aluminum is the strongest case. Recycling an aluminum can uses about five percent of the energy required to make a new one from bauxite ore — a 95 percent energy savings, well-documented in life-cycle analyses going back decades. Aluminum cans are the most valuable item in your bin, which is why used beverage cans are often what keeps a municipal recycling program financially viable in the first place. The recycling rate for cans is around 43 percent in the U.S. — not great, lower than it should be, but real. And aluminum is one of the only materials that can be recycled effectively forever without losing quality. A can you toss this week can be back on a shelf as a new can in about sixty days.

Steel and tin cans are similarly recyclable, similarly valuable, similarly worth keeping clean.

Cardboard is a quiet success story, though the numbers have gotten more honest recently. For years the industry trade group (AF&PA) reported corrugated cardboard recycling rates north of 90 percent — sometimes 96 percent — but those figures excluded the millions of tons of imported boxes coming into the country with goods inside them. After outside analysts called this out, AF&PA revised their methodology in 2024. The current figures are 69 to 74 percent for cardboard and 60 to 64 percent for paper overall. Still genuinely good, especially compared to plastic. The fiber market for cardboard is real, the infrastructure works, and recycled cardboard becomes new cardboard reliably. The single biggest thing you can do to support cardboard recycling is keep it dry. Wet cardboard is dead cardboard.

Glass is more complicated. It's genuinely recyclable, infinitely so in principle, but in single-stream systems a lot of glass gets broken during collection and ends up as low-grade aggregate (road base, landfill cover) rather than new bottles. In places with separate glass collection or deposit systems, the closed loop actually closes. In single-stream, it mostly downcycles.

Paper is decent — recently revised down to a 60-64 percent recycling rate. The main failure mode is the liquid contamination problem, which is the actual reason behind every "rinse your containers" PSA you've ever heard.

Plastic #1 (PET, the bottle plastic) has a real recycling stream, but the rate is still only around 30 percent. #2 (HDPE, the milk-jug plastic) is similar. #3 through #7 — the films, clamshells, yogurt cups, takeout containers, "compostable" bioplastics, and everything else — has essentially no functional recycling market in the U.S. Whether it gets put in your bin or not, most of it goes to a landfill. The little arrows on the bottom of those containers are not a recycling guarantee. They are a resin code, originally pushed by the plastics industry in the late 1980s in part to give the appearance of recyclability without changing what was actually happening to the material.

So the bin holds a mix. Some of what's in it gets meaningfully recycled. Some of it doesn't. The proportions are very different from the way the household environmental message has framed it for a generation.

What this means for the water question

I started with the milk jug at my sink, and I want to come back to it, because the water math is what made me write this in the first place.

The official defenses of rinsing usually say something like: "even with the water you use to rinse, recycling still saves more water than virgin production." For aluminum and paper, that's clearly and durably true. For glass, it's roughly true. For plastic, it's marginal at best, and depends entirely on how much water you use to rinse. There's a phrase that came up in one of the studies I read that stuck with me: prudent rinsing doesn't negate the water savings; reckless rinsing might.

That's the whole thing in one sentence. A quick swirl with leftover dishwater is fine. Two minutes of hot tap water on a yogurt cup is not. And the way most of us were taught to do it — scrubbing with soap until the container looks new — is well into the "reckless" category, and it's being applied to material that has roughly a one-in-twenty chance of actually getting recycled.

In Central Texas in 2026, with the J-17 well sitting just above 632 feet on a 10-day average and the seasonal forecast leaning warm and dry, that's a math problem worth taking seriously. The water you put down the drain to clean a #5 yogurt cup that's headed for a landfill anyway is water that didn't go to your live oak's drip line, didn't stay in the aquifer, didn't refill Comal Springs.

That sounds like a small, almost trivial example, and individually it is. But it's exactly the kind of low-grade resource transfer that adds up across millions of households, and it's the kind of thing that gets locked in by guilt-driven environmental messaging that was wrong about the underlying picture in the first place.

Where I've landed

A few things I'm doing differently after thinking through all this.

I empty containers and scrape them. If something has heavy residue and I wouldn't run a half-cup of water on it during a drought, it goes in the trash now. I've stopped feeling guilty about that, because the alternative was wasting water to performatively recycle a piece of #5 plastic that was going to a landfill regardless.

I pay more attention to which materials are actually worth the effort. Aluminum, steel, dry cardboard, glass bottles, PET and HDPE bottles — those are worth a quick swirl. Mixed plastics, films, clamshells, foam — most of those, in honest terms, are landfill material whether I put them in the blue bin or the gray one, and pretending otherwise is theater I'm done participating in.

I think harder about what comes into the house, because that's the only part of the system where individual choice meaningfully changes the outcome. The classic example is the plastic six-pack ring. Those rings are a real wildlife problem — sea turtles, seabirds, fish, all of it. The official advice for decades has been to cut them up before throwing them away. Picture how strange that actually is. The manufactured solution to "this product is killing wildlife" was not "stop making the product." It was "ask three hundred million people to perform a small daily ritual of harm reduction on the manufacturer's behalf."

If you described that approach in any other context, it would sound insane. Imagine a company that sold containers that exploded when they were empty. The official guidance is: when you're done with one, put it in your home explosion-containment cabinet, then call a bomb-disposal team to detonate it safely with a counter-charge. Don't forget to wear the PPE. Don't forget to file the post-detonation paperwork. Be a responsible exploding-container owner. Whatever you do, don't ask whether anyone needed to make exploding containers in the first place.

That's the structure of a lot of consumer environmental advice. The harm is upstream, the manufacturer benefits from the product as designed, and the burden of mitigation gets pushed downstream onto the person who didn't design it, didn't profit from it, and can't actually fix it. Cutting up the six-pack ring is the same logical category as rinsing the unrecyclable yogurt cup with potable water during a drought. Both are rituals that make the consumer feel responsible for an industrial-scale problem they did not cause and cannot solve at the kitchen sink.

The way to keep turtles out of six-pack rings is to not buy six-pack rings, or — better — to require manufacturers not to make them. The way to solve plastic waste isn't a slightly cleaner yogurt cup. It's less plastic. Buying things in glass and aluminum instead of plastic when there's a choice. Buying less single-use packaging in general. Cooking from bulk. None of that is glamorous, none of it is new advice, but it's the part of the system where consumer choice actually shows up in the data.

The one place where individual action genuinely bypasses the broken industrial system is composting. About a quarter of what goes into a typical American landfill is food and yard waste. In a landfill, that organic matter breaks down anaerobically and produces methane, which is a far more potent greenhouse gas than CO2 over the short term. In a backyard compost pile, the same scraps break down aerobically and become soil — actual, useful, microbially alive soil that holds water, feeds plants, and reduces your need for synthetic fertilizer. Banana peels, coffee grounds, eggshells, vegetable trimmings, leaves, grass clippings, garden cleanup. None of it has to leave your property.

This is the rare case where the household-level intervention is real, structural, and not dependent on anyone else's business model working. You don't need a hauler. You don't need a sorting facility. You don't need an export market. You need a corner of the yard, a pile, a little patience, and the willingness to pay attention to the carbon-to-nitrogen ratio. In Central Texas, where soils are thin, summers are hard, and water-holding capacity is the limiting factor on most landscapes, every pound of compost you build is a pound of organic matter going into the ground that wouldn't have been there otherwise. That has long-term water consequences too, in the right direction.

I've stopped carrying the particular flavor of household guilt that the plastics industry spent fifty years and a lot of money cultivating. I don't owe that industry the water it would take to make their accounting look better. Neither do you. Empty the jug, dump it in the bin, and put the apple core on the compost pile.

A note on how to think about this

Most of the bad environmental advice I've encountered in my life has the same shape. It puts the burden of solving a structural, industrial-scale problem on the individual consumer, in the form of a small, repetitive, slightly painful daily ritual. Rinse the jar. Reuse the bag. Skip the straw. The rituals aren't pointless — sometimes they add up, sometimes they don't — but they tend to crowd out the harder, slower questions about why the industrial-scale problem exists in the first place and who profits from it continuing.

For people who actually spend time on the land — landowners, ranchers, anyone whose livelihood depends on watching a place across years rather than days — there's a particular allergic reaction this kind of messaging produces. You learn pretty quickly that small daily gestures don't reverse a soil moisture deficit, don't restore a spring, don't hold an oak through a drought. The system-level questions are the ones that matter. The ritual ones are usually a distraction, and sometimes they're worse than that — they're a mechanism for shifting blame off the people and industries that produced the problem.

Rinse your jar with leftover dishwater. Don't waste live water on packaging that's headed for a landfill. Pay closer attention to the materials that actually do get recycled, and stop pretending the others are something else. And if you find yourself feeling guilty about doing less of something an industry wanted you to do, ask yourself who built that guilt and what they were selling.

That's most of what I've got.

— Cody Nelson Hill Country Land Services