Bostonians and beer enthusiasts alike already know that Samuel Adams beer is delicious, but it doesn’t hurt that the beer masters at the world’s oldest brewery think so, too. In early December, Infinium ale, the product of a two-year partnership between Germany’s Weihenstephan Brewery and the makers of Samuel Adams, Boston Beer Co., will be available for sale in the United States.

Jim Koch, the founder of Boston Beer Co., told the “Boston Globe” that Infinium’s taste is “sort of in between a champagne, a dessert wine, and maybe a Sam Adams Noble Pils.” He added, “You get some of the body and mouthfeel of a beer, some of the hop character of a beer, but it’s very dry and acidic without being thin.”

The ale is golden and bubbly and has notes of pear, apple, peach, and apricot, but don’t be fooled by the fruit or the fancy bottle — Infinium contains 10.3 percent alcohol, which is more than twice as much as the typical American beer.

So you can forget Miller High Life, as Infinium just might take its place as the “champagne of beers,” and it could just as easily take the place of your glass of bubbly on New Year’s Eve. But you’d better start hoarding cases the moment it hits shelves this December, because Jim Koch told the “Boston Globe” that he expects liquor stores to be sold out of Infinium by New Year’s Day. Cheers!

The 750-milliliter bottles of Infinium will be sold for $19.99.

ANDOVER — Stouts are usually associated with cold weather, sitting by a fire and drinking something that comforts you. It’s a turkey sandwich in a bottle, essentially — it’s got some weight to it. Andover resident, David Rosenbaum, won Samuel Adams’ second annual Patriot Homebrew Contest this year with his recipe.

Rosenbaum’s winning stout is being brewed by The Boston Beer Company and served at Gillette Stadium for Patriots season this year. The next contest is going on now, and the deadline is December 18. The winner also gets a little chunk of change: $2,000.

"The first two pre-season games were hot summer nights, and they sold out the first night. And the first home game, which was also a warm day, it sold out as well. So that’s very gratifying," said Rosenbaum, who holds Patriots season tickets. His stout is lighter than other stouts, but still holds all the depth of flavor that’s looked for. Sometimes when you drink a a beer, you’re tasting it for the next hour or so. Not the case with Rosenbaum’s, which adds to its popularity at the stadium.

Rosenbaum first became interested not so much in brewing, but in beers, when he studied in the UK during his time in college. He found he liked beers quite unlike the ones he could find in the United States, which were usually light and thin. He enjoyed a beer with a lot of flavor — multiple components coming together to form a more harmonious brew. "This was some time ago, but when I came back to the States, there weren’t a lot of imports so I just drank what I could find and was always looking for other interesting beers," he said.

A few years ago Rosenbaum received a homebrewing kit as a gift, and brewed his first batch. "My first batch wasn’t horrible," he says, "but it certainly wasn’t great either."

Looking for guidance, he joined Brew Free or Die, New Hampshire’s oldest homebrew club, and slowly learned what he had been doing wrong with his first attempts at brewing. A few parts of the process had been left out in the brewing kit directions he’d received. There’s a whole list of things of what to do, or not do, so that off-flavors aren’t introduced to a batch of beer. "For example, you have to boil a batch and then cool it. And if you stir your beer really vigorously to cool it down and break the surface tension then you introduce cardboard flavors into your beer," Rosenbaum explained. There are many rules like this in homebrewing, and each recipe has its own quirks.

It took him a few years of practice and four tries to get the batch right. Rosenbaum entered the third batch of his Oatmeal Stout into last year’s Patriot Homebrew Contest (which didn’t place), though he knew going into it that it wasn’t the beer he wanted it to be. "It tasted good but it was a little thin in the mouth," he said. "I had decided to add a kind of bourbon flavor to it by adding whiskey that had been soaked in oak chips. So the flavor was good but it was a little… " he makes a hand gesture to show ‘lacking,’ his palms turned upward to the ceiling.

It was his fourth batch that won. Rosenbaum’s winning brew is full-flavored and full-bodied. It’s rich without being indulgent, flavorful without being bitter. It’s malty and sugary at the same time, the deep black color of the brew paired nicely with a creamy head.

Currently, Rosenbaum is back in his kitchen, settling back into his brewing. His kitchen is more of a mad scientist’s laboratory. Cabinets open to expose large metal bins with grates in the bottom for percolation. Tubes are hooked up to faucets to let fermented brews flow out. He has two refrigerators, one for food, and one that holds three kegs of whatever brew he’s working on at the current moment. To challenge himself, he’s taking award-winning recipes as a base and tweaking them a bit here and there to create something totally new. "Even the smallest change can make quite a bit of difference," he says.

A few weeks ago, Rosenbaum had an English Best Bitter in a plastic bin cooling on his front steps, the keg sitting in a vat of ice water. Since it’s still the fall season and temperatures still vary daily, a mechanized thermometer maintains the temperature by activating a fan if the vat gets too warm. The Bitter is intended to be a beer to drink several glasses of over the course of an evening, while not having to worry about getting drunk.

Winning the Patriot Homebrew Contest added quite a lot of excitement to his life, but Rosenbaum’s ready to try out new recipes. "I think it’s a great thing (Samuel Adams) does for others. They show a lot of support for the homebrewing community," he said. "Their president, Jim Koch, started off as a homebrewer and created a whole company out of it. I don’t think he’s forgotten his roots, and it’s a great thing to see."

The Boston Beer Company, brewers of Samuel Adams, announced this week that it would put out a limited release of a new Samuel Adams Barrel Room Collection beers.

The collection includes three oak-aged beers that were brewed and aged here in Boston. These join the Samuel Adams Triple Bock and very limited Utopia collection of aged beers. The collection is available at the brewery on Germania Street in Boston as well as select retail locations in Massachusetts, Hew Hampshire, Maine and Denver at $9.99 for a 750ml bottle.

The new beers are called New World Tripel, a cherry flavored American Kriek and Stony Brook Red,

“(The beers) are a result of years of experimentation by the brewers at the Samuel Adams Boston Brewery,” the company said in a statement. “The trio of brews have been aged in Eastern European oak barrels, originally used to age brandy in Italy, imparting a subtle sweet, toasty note to each beer. The barrels also allow a small amount of oxygen to slowly seep in to the brew, smoothing out the flavors in the beer.”

“For years, we’ve been playing with barrels at the brewery, aging small batches of beer in our Barrel Room. Before now, these beers have only been available at beer festivals or to a few lucky visitors to our Boston Brewery,” said Jim Koch, Brewer and Founder. “Our Boston Brewery is where every Samuel Adams style of beer is dreamed up and nurtured. It has been our hub of innovation since I started brewing here in 1988; I like to think of it as the ultimate brewer’s workshop.”

For an optimum drinking experience, the brewers at Samuel Adams recommend serving each brew in a traditional Tulip-style beer glass.

Samuel Adams New World Tripel: Pale gold in color, this ale is big, flavorful and complex. A special Belgian yeast strain adds tropical fruit and spice notes to the crisp dry ale, while Saaz hops add a subtle herbal note. (~10% ABV)

Samuel Adams American Kriek: The intense black cherry character in this beer comes from Balaton cherries, which were discovered in Hungary and are now grown in Michigan. These special cherries are prized for their depth of flavor. The tartness from the cherries is balanced by a rich, malty character with toasted oak notes added from the barrel aging. (~7% ABV)

Samuel Adams Stony Brook Red: This unique brew defies traditional beer style definition. The rich, malty brew combines notes of tart fruit from the yeast with a toasty oak character from the barrel aging. The long dry finish is almost wine-like. This is a beer that is satisfying on its own and also pairs well with many foods such as braised or roasted meats, beef stews and strong salty cheeses. (~9% ABV)