Published: June 04, 2026, 03:54 UTC
# When the War Comes Home: Japan Runs Out of Plastic
The Strait of Hormuz blockade is no longer an abstraction for Japan. It is an empty baguette bag in Tokyo, a bare produce section in Kawasaki, and a hard question for every convenience store clerk who can no longer wrap your onigiri.
KAWASAKI — The produce section of the ColekoVer supermarket on a Tuesday afternoon in late May is a study in controlled failure. The green peppers are there. The lettuce is there. The plastic produce bags — the thin, transparent, utterly forgettable polyethylene pouches that every Japanese supermarket has provided free for decades — are gone. The dispenser rack is taped over with a sheet of A4 paper.
“Please use your own bag or place items directly in your shopping basket,” reads the printout, signed by the store manager, Takeshi Takanohira. Below it, in smaller type: “We apologize for the inconvenience.”
Takanohira, a man in his late forties who has managed this store for eleven years, stands near the register watching customers adapt. Some shrug and toss loose apples into their carts. Others walk out. He does not blame them.
“The plastic bags are a small thing,” he tells me. “But they are not a small thing when you have been using them every day for thirty years and suddenly they are not there. Our supplier told us in March they could only deliver forty percent of our usual order. By April it was twenty percent. May we got nothing at all.”
He pauses.
“We are a supermarket. We exist to make things easy for people. Right now, nothing is easy.”
The problem Takanohira is grappling with in his produce section has its roots eight thousand kilometers away, in the narrow waters between Iran and the Arabian Peninsula. Since late February, the Iranian Navy has effectively blockaded the Strait of Hormuz — the chokepoint through which a fifth of the world’s petroleum passes. Japan imports 99 percent of its crude oil and 74 percent of its naphtha from the Middle East, nearly all of it through Hormuz. The blockade is not a diplomatic abstraction. It is a chemical fact.
Naphtha is what Japanese petrochemical plants crack into ethylene and propylene, then polymerize into polyethylene and polypropylene — the plastics in shopping bags, bento wrap, food gloves, meat trays, cup-noodle seals, takeout containers. All of it runs on naphtha from the Gulf.
In March 2026, polyethylene production in Japan fell 62 percent compared to March 2025 — the worst quarterly contraction since the 2011 earthquake. And unlike that disaster, there is no reconstruction timeline. No one knows when Hormuz will reopen.
I visit Le Main Qui Pense, a bakery in a quiet residential street in Setagaya, Tokyo. The owner, Shisou Tanoshiri, has been baking bread here for twenty-two years. His baguettes are excellent — crisp crust, soft crumb, the kind of bread you buy two of because one will not survive the walk home. But lately, he cannot sell them the way he used to.
“Look,” he says, gesturing to a stack of baguettes on the counter. They are bare. No paper sleeve. No plastic bag. No nothing. “I cannot get the bags. My supplier — the same one for fifteen years — called me in April and said they have no stock. No stock of bread bags. Something so simple, and it just does not exist anymore.”
He shows me his hands. They are dry, cracked. “And I cannot get food-grade gloves either. I used to go through a box of two hundred every ten days. Now I am washing my hands fifty times a shift. It is not hygienic. It is not good. But what can I do?”
Tanoshiri is not alone. The food sector accounts for nearly a third of Japan’s more than eight million tons of annual plastic consumption. Much of that is single-use packaging — the quiet, invisible infrastructure of Japan’s food culture. The bags, the wraps, the trays, the gloves, the films. Japan’s service culture is built on layers of plastic: the store wraps your purchase, then puts it in a bag, then wraps the bag in another bag if it is raining. This is not wastefulness for its own sake. It is a cultural logic of care — of protecting the thing you are handing to the customer. When that logic meets a supply chain that has simply stopped running, something fundamental breaks.
In Kofu City, Yamanashi Prefecture, the Hinode Delica — a small delicatessen that has operated for thirty-seven years — has found an improvised solution. “Bring your own container, get a free extra scoop of potato salad,” reads a sign written in felt-tip pen on cardboard. The owner, who asks not to be named, cannot get plastic containers anymore. Her supplier told her June will bring a 30 percent price increase — if any containers come at all.
She shows me her storage room. Normally it would be stacked to the ceiling with white polypropylene tubs, hinged clear boxes, black trays for sashimi. Now the shelves are mostly bare. A few stacks of the smallest containers, a box of chopsticks, a roll of plastic wrap she is rationing.
“I survived the consumption tax. I survived the pandemic,” she says. “I never saw anything like this. This is not a business problem. This is a country problem.”
She is right. The shortages have moved beyond commerce into the municipal systems that keep Japanese cities clean. In several wards of Tokyo and in parts of Osaka, garbage collection services are feeling the pinch. Japan’s famously strict garbage separation system requires specific approved plastic bags for burnable waste — color-coded, imprinted with the ward name, sold in convenience stores and supermarkets. These bags are running out.
Some municipalities have quietly begun allowing non-approved bags — clear shopping bags, whatever is available. Official announcements have been careful, couched in bureaucratic euphemisms about “temporary adjustments to collection standards.” But the message is unmistakable: the system is bending.
A sanitation worker in Adachi Ward, speaking on condition of anonymity, puts it bluntly: “We pick up whatever people put out now. We do not check the bags anymore. What are we supposed to do? Leave people’s garbage on the street? The bags they are using — some of them are too thin. They tear. The crows get in. It is a mess. But it is better than the alternative.”
The government is only beginning to acknowledge the scale of the problem. Prime Minister Takaichi, in a press conference on May 28, called the plastic shortage a “bottleneck” — the kind of neutral language officials reach for when they do not want to admit something is breaking down.
“We are in communication with allied nations regarding the security situation in the Gulf,” she said. “We are working with industry to identify alternative sources of feedstock and accelerate the transition to recycled materials.”
The industry does not share her optimism. The Japan Petrochemical Industry Association has warned that production will not recover until at least August, and only if the Strait of Hormuz reopens. No alternative sources of naphtha exist at the scale Japan needs. The country could import refined plastics from China or South Korea, but that capacity is finite and expensive. The price of imported polyethylene has already doubled.
“Calling it a bottleneck implies it is a narrow point in a functioning system,” a senior industry analyst told me. “This is not a bottleneck. This is a severed artery. The system has stopped. We are living on inventory, and inventory has a shelf life.”
The micro and the macro are the same story. All the way down: a country that depends on a narrow stretch of water on the other side of Asia for the raw material of everyday life, and that water has been closed.
The war in the Gulf is reported as naval deployments, diplomatic cables, oil futures. But for the woman at Hinode Delica, the baker in Setagaya, the supermarket manager in Kawasaki, the sanitation worker in Adachi — the war has a second front. It is in every bag that cannot be found, every glove that cannot be bought, every tray that cannot be filled.
This is what a supply-chain war feels like. No explosions, no sirens. Just a bakery running out of bags and a customer carrying a baguette under their arm. A supermarket manager taping a sign over an empty dispenser. A delicatessen owner offering an extra scoop of potato salad as a survival strategy. A garbage collector watching crows tear through thin plastic because the thick plastic is gone.
The war in the Gulf has found its way into every Japanese convenience store. In the quiet aisles, between the empty displays and the handwritten signs, you can see what the abstraction of a “supply chain” actually means. It means things stop working. Not all at once, not with a bang, but one bag at a time.