COMING AROUND TO CANS: In 2002, just one craft brewery was using cans. Now around 300 different breweries offer close to 1,000 beers in cans, according to CraftCans.com.

COMING AROUND TO CANS: In 2002, just one craft brewery was using cans. Now around 300 different breweries offer close to 1,000 beers in cans, according to CraftCans.com.

CAN-DO ATTITUDE: Brewers say cans are portable, space-saving, faster-cooling, more light-resistant and super-recyclable. They're also debunking myths that the cans impart a metallic taste to beer, are unsophisticated and don't store as well as bottles.

TECH TWEAKS: As brewers and consumers debate using bottles or cans, innovation continues as breweries seek to differentiate themselves on expanding beer shelves. Sam Adams Boston Lager comes in cans designed to improve the taste, and Sly Fox Brewing sells beer in "topless" cans designed to turn into cups when opened.