Banana Gas Man is ripe for his job

It's an art to help a banana turn yellow at just the right time.

KNIGHT RIDDER NEWSPAPERS

MIAMI — Pat Foster doesn't plant banana trees. He doesn't pick bananas.

But he's responsible for whether the bananas you buy at the grocery store are an appetizing canary yellow or an unsavory lime green.

Foster's official title is Chiquita's director of ripening, but think of him as the Banana Gas Man. At his warehouse in Port Everglades, Fla., he puts the finishing touches on green bananas, jump-starting the ripening process by exposing them to ethylene gas in a careful balance of temperature, time and dosage.

To Foster, who has spent 40 of his 59 years working with bananas, ripening is an art. "You don't create a Picasso by painting by the numbers," said Foster, who grew up in Kingston, Jamaica.

Foster's chemical wizardry is a critical, if little-known, step along bananas' path from the sprawling Latin American plantations where they are grown to supermarket shelves.

Chiquita Brands International is one of five companies that dominate the world's banana trade.

Bananas are big business — Chiquita's alone hit $1.9 billion last year. And at times, the industry is the target of trade wars and campaigns over working conditions on plantations. A dispute with the European Union over banana tariffs drove Chiquita into a brief bankruptcy earlier this decade.

Foster's job is to focus on a smaller but age-old problem: the short shelf life of ripe bananas.

The process

Because they rot fast, bananas are picked green, loaded into refrigerated cargo containers and shipped to American ports. Upon arrival at Port Everglades two days later, they are loaded into a warehouse off McIntosh Road, warmed slightly, and exposed to ethylene, a natural gas fruit releases when ripening.

Foster's domain: How much gas "the picky little buggers" get, for how long and at what temperature.

"You can't just pick up a book and do this," said Alvaro Acevedo, Chiquita's Florida general manager.

That's because Foster's job is more complex than it sounds. Bananas show up in varying conditions, at different stages in the ripening process, needing different amounts of gas.

Extreme conditions

They are affected by hurricanes. Droughts. And in the spring, Semana Santa.

Extreme weather conditions also cause headaches.

Heavy rains during hurricane season can saturate and damage a banana tree, causing it to ripen early to spread its seed. The same occurs with drought conditions.

A batch of fast-ripening bananas placed in a container can spur green bananas to begin ripening prematurely.

It's the same principle as "one bad apple spoils the bunch." One rotten apple in a barrel — releasing large quantities of ethylene — causes its neighbors to ripen early.

"All of a sudden you'll have too high of a color," Foster said. "Other times you'll run into fruit that just won't ripen. That's what we call strong greens."

Though ethylene can be explosive when levels and temperatures rise, Foster says the gas is harmless. But if you walk into a recently used chamber and take a breath, "you'll get a little buzz. It's atomized alcohol."

And though it may seem unappetizing to eat "gassed" fruit, there is little choice: Even Chiquita's organic bananas are gassed.

"It sounds bad, doesn't it?" said Jeff Brecht, a University of Florida horticultural professor. "It's an ironic example of what's 'chemical free.' Ethylene is a chemical, but it's naturally produced."

Background

Foster, who is built like a linebacker, speaks with a lyrical Jamaican accent. His first job was a cadet on ships that transported refrigerated cargo, including bananas.

"I went in the merchant marine, my father went in the merchant marine, and my grandfather went in the merchant marine," Foster said. "It's my whole bloody family."

He worked for a Miami company called Banana Supply before it was bought by Chiquita in the 1980s. As Chiquita's chief ripener, he has trained roughly 50 ripeners around the country.

Foster said his experience enables him to produce fruit that ripens evenly, turning from yellow-green to yellow just as a shopper buys them.