Melissa Allison repotrts in the Seattle Times that Starbucks does not often disclose sales of individual products. It only recently began saying that Frappuccino is a $2 billion-a-year product.

But the coffee company is excited enough about reaching $100 million in sales of its instant coffee Via, which officially launched last September. It had been tested in Seattle and Chicago since February 2009.

It took Frappuccinos about three years to reach that level of sales, CEO Howard Schultz said in a release.

A survey showed that 55 percent of Via customers drink it at home, 25 percent at work, and 20 percent “while on the go.”

Via is sold at 12,000 Starbucks locations in the U.S. and 37,000 other stores including food, drug and mass merchandise stores like Target. It’s also available in Canada, Japan and the U.K.