Hot beverages in cans or pet bottles are one of the best things about winter in Japan. Warming up your hands as well as your tummy, they're a great way to beat the cold during this setsuden (power saving) winter. Sold in vending machines or heated displays in convenience stores, product lineups are ever-evolving and this year is no different. Here's a quick look at what's trending:

Hot Calpis: Stop sniggering. We know what the name sounds like. Unpleasant connotations aside, this sweet milky drink has been popular as a cooling beverage for years in Japan. Released on the market on Nov. 7, the heated version is milder than the summer drink and a dash of honey gives it a nice wintry touch. It's one several products added to Calpis' winter range of heated drinks. Another is Hot Fruits au Lait, a milky blend of sweet fruit juices.

Suntory Iemon Green Espresso: Matcha in a black can for manly men; Suntory is targeting businessmen who would normally warm up with a hot can of coffee. The product has been reasonably successful, according to Nikkei Trendy: During the first month of sales after its launch in September, 600,000 cases of the stuff were sold. The espresso part refers to the fact that this is very strong, gritty green tea, just like the kind made for tea ceremonies. Containing 20 mg of caffeine in every 100 ml, it's just the thing to give hard workers a boost.