Andy

A can makes up about a third of the wholesale price of canned fruits or vegetables. And as Mr. Trump’s tariffs pushed up the cost of tin plate, canned food prices have risen, burdening households that rely on such staples as corn and beans.

In March, canned fruits and vegetables cost 5.7 percent more than they did a year earlier, compared with a 2 percent increase for all food consumed at home, according to government data.

Over 80 percent of the tin plate used in the United States last year was imported, according to Harbor Intelligence, a metals markets analysis firm. Tin plate is produced in much lower volumes than the steel used to make cars and buildings, making it a less attractive business for large steel companies.