2014: 1,001

2013: 1,070

2012: 1,305

2011: 1,537

2010: 1,626

2009: 2,216

Source: Washington State Patrol

Smoking is clearly the popular way to consume marijuana, as demonstrated by the thousands of pounds of marijuana flower legally sold each week. A growing number of consumers seek a more discreet and portable experience that companies continue to develop — anything from coffees to breath sprays to candies.

However, when a suspected marijuana-infused product becomes evidence in a crime, there is no valid way for state labs to test it, making it difficult prove that it’s actually marijuana.

When marijuana becomes legal in Oregon, Washington stores may make a big push to sell marijuana-infused products, because they won’t be available right away on the other side of the river.

Adam Stites is the founder of Mirth Provisions, a company he started in Longview that makes three infused tonics available in nearly 100 stores across the state.

“Our product is a niche within a niche,” he said.

Each drinkable tonic has a set amount of THC, the psychoactive component of marijuana. It’s supposed to provide a measured, consistent experience to take the guesswork out of getting high. With smoking, it’s not always the same high, Stites said. A big drag of the wrong strain can lead to a less than favorable experience, but that’s part of the education experience stores aim to provide.