He believes that hot coffee sales will increase if everyone walks everywhere like he does.

"Helping a lot," Mr. Park said of the impact of coffee sales on his business, which has been hurting for several years.

Nevertheless, it is just 8 percent of domestic coffee sales.

Coke has also tested coffee sales in Atlanta.

"It's cutting into coffee sales, too," he said.

A year ago, he put out machines that make cappuccino and espresso, and they have doubled his coffee sales.

And decaffeinated coffee constitutes up to 40 percent of coffee sales in some restaurants, especially at dinner.

And last year, the value of coffee sales surpassed tea in Britain for the first time, according to Mintel, a market research firm.

The company donated all proceeds from its coffee sales in the Georgia region during the three-day fund-raiser.

Low-priced coffee sales are the main obstacle to a new price accord between coffee producers and consumer members of the 74-nation organization.