As for dented cans, Susan Parachini says to avoid severe dents, especially along the seams. And watch out for two major red flags: leaking or bulging.
"If you have a can, any time it's leaking or if it's bulging, it wouldn't any longer be considered safe," she said.
Leaks or bulges could be a sign that botulism bacteria is growing in the can.
Symptoms of botulism include blurred vision, muscle weakness and even paralysis that could potentially cause death, according to the Centers for Disease Control and Prevention.
"Just make sure you're informed and you're taking the time to look to make sure you're getting a product that at least visually appears to be of good quality and integrity," said Parachini.
Martin Palumbo insists the food in crushed boxes and dented cans is safe.
"If it's not something I would eat myself, I wouldn't put it on my shelf. I would not be in business this long if I was putting anything bad out there," he said.
Palumbo's Friday Store shopper Angela Wheaton says as long as you know what to look for and avoid, the price is right.
"It proves that you don't have to go to a major grocery store," she said. "Or, you can get better prices than the sale prices and a coupon at the grocery store."