Death Wish Coffee Co, a New York coffee maker that sells what it says is the "World's Strongest Coffee," is recalling cans of its Nitro Cold Brew because of the risk that some could contain the deadly toxin botulin.

No illnesses have been reported to date, the U.S. Food and Drug Administration (FDA) said in a recall notice earlier this week, but urged people who bought the 11-ounce (325 ml) cans to either dispose of them or return them with proof of purchase for a refund.

Demand for coffee and beer made bubbly with nitrogen, rather than carbon dioxide, has risen over the past year with consumers enjoying the smaller bubbles and the denser foam that the gas produces.