NEW YORK – President Donald Trump’s doubling of tariffs on foreign steel and aluminum could hit Americans in an unexpected place: grocery aisles.

The announcement on Friday of a massive 50% levy on those imports has sparked concern that large purchases, from automobiles to washing machines and homes, might experience significant price hikes. Since these metals are extensively used in packaging, they are likely to impact consumer products across the board, from canned goods to snacks.

“Increasing grocery prices would be a part of the cascading effects,” says Usha Haley, a trade specialist and professor at Wichita State University, who mentioned that the tariffs could elevate costs throughout various industries and further strain relationships with allies, “without supporting a long-term revival of U.S. manufacturing.”

Trump’s return to the White House has been accompanied by an unparalleled wave of tariffs, with levies being threatened, imposed, and frequently withdrawn in such a rapid succession that it’s difficult to track. He asserted that the latest tariff increase was essential to “further bolster the steel industry in the U.S.”

That promise, though, could be at odds with his pledge to reduce food costs.

Rising grocery prices, Trump has said, were among the biggest reasons voters swung his way. A look around a supermarket makes clear how many products could be impacted by new taxes on steel and aluminum, from beer and soda to dog food to can after can of beans, fruit, tomato paste and more.

“It plays into the hands of China and other foreign canned food producers, which are more than happy to undercut American farmers and food producers,” insists Can Manufacturers Institute president Robert Budway. “Doubling the steel tariff will further increase the cost of canned goods at the grocery store.”

Budway says production by domestic tin mill steel producers, whose products are used in cans, have dramatically decreased in recent years, making manufacturers reliant on imported materials. When those prices go up, he says, “the cost is levied upon millions of American families.”

Food companies were already warily assessing the administration’s tariffs before the latest hike, which Trump said would go into effect on Wednesday. The Campbell Co., whose soup cans are a staple for millions of Americans, has said it was working to mitigate the impact of tariffs but may be forced to raise prices. ConAgra Brands, which puts everything from cans of Reddi-Whip to cooking sprays like Pam on supermarket shelves, likewise has pointed to the impact steel and aluminum tariffs have.

“We can’t get all of our materials from the US because there’s no supply,” ConAgra CFO David Marberger said at a recent Goldman Sachs conference on global staples.

Beyond the obvious products — canned foods like tuna, chicken broth and cranberry sauce — economists warn of a spillover effect that tariffs can have on a gamut of items. If the cost to build a store or buy a truck to haul food rise, the prices of products may follow.

Most Americans will never buy a tractor, but Babak Hafezi, who runs a global consulting firm and teaches international business at American University, says a price spike in such a big-ticket item vital to food production will spill down to all sorts of other items.

“If a John Deere tractor costs 25% more, consumers pay the price for that,” Hafezi says. “This trickles down the economy and impacts every aspect of the economy. Some of the trickling is immediate and others are slower to manifest themselves. But yes, prices will increase and choices will decrease.”

Trump appeared before a crowd of cheering steelworkers to unveil the new tariffs at a rally outside Pittsburgh. In a statement, David McCall, president of the United Steelworkers International union, called tariffs “a valuable tool in balancing the scales” but “wider reforms of our global trading system” are needed.

It may be harder to gauge the weight of tariffs on, say, a can of chickpeas versus that of a new car, but consumers are likely to see myriad indirect costs from the levies, says Andreas Waldkirch, an economics professor at Colby College who teaches a class on international trade.

“Anybody who’s directly connected to the steel industry, they’re going to benefit. It’s just coming at a very high cost,” Waldkirch says. “You may get a few more steel jobs. But all these indirect costs mean you then destroy jobs elsewhere. If you were to add that all in, you come up with a pretty large negative loss.”

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Matt Sedensky can be reached at msedensky@ap.org and https://x.com/sedensky