Winter is an ideal time for beer-related events. This week offers plenty to do, including Density Day, that magical day when Good City releases its barrel-aged stout.

Tuesday, Dec. 12

For just $20 you can have a flight of 12 different Christmas beers during the annual Christmas party at Erv’s Mug (130 W. Ryan Rd.). Oh, and there are also free snacks.

Draft & Vessel (4417 N. Oakland Ave.) hosts a Bring Your Own Christmas Vinyl night. Bring your favorite Christmas album and enjoy a few brews by Great Lakes, which is taking over a few of the taps.

Millioke (323 E. Wisconsin Ave.) continues its 12 Beers of Christmas and hosts a visit by Westallion Brewing. Amiable founder Erik Dorfner is bringing his amber and a peanut butter porter.

Wednesday, Dec. 13

The Milwaukee Beer Society hosts a brewery spotlight at Best Place (901 W. Juneau Ave.) at 6 p.m. The focus is on Eagle Park Brewing. If you haven’t had their beers yet, I recommend trying some. Cost is $10.

Thursday, Dec. 14

Third Space Brewing is taking over a few of the taps at The Brass Tap (7808 W. Layton Ave.) starting at 4 p.m. One of those taps is Nexus of the Universe Barrel-Aged Imperial Stout.

Experience winter at Boerner Botanical Gardens (9400 Boerner Dr.) and sip beer from Explorium Brewpub while you’re doing it. The brewery hosts this month’s Boerner Brewtanical Series. Cost is $15.

Lakefront Brewery takes over the taps at The Rumpus Room (1030 N. Water St.) at 5 p.m.

Friday, Dec. 15

Sample brews from Surly at Discount Liquor Milwaukee (5031 W. Oklahoma Ave.) from 4 to 7 p.m.

Karben4 brings samples to Discount Liquor Waukesha (919 N. Barstow St.) from 4 to 7 p.m.

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Saturday, Dec. 16

It’s Density Day! Good City Brewing (2108 N. Farwell Ave.) releases bombers of its Barrel-Aged Density Imperial Stout during a daylong soiree. Good Citizen Loyalty Members get in at 9:30 a.m. and the rest of you beer fans can enter at 10 a.m. Last year’s Density was one of the best local beers I tried. I’m pretty sure this year’s batch will live up to the hype.

Third Space and Lakefront are both bringing some of their standouts to Burnhearts (2599 S. Logan Ave.). Along with the beer, a DJ will be spinning hip hop. So much festivity.

Gathering Place Brewing (811 E. Vienna St.) releases Josaphat Single Hop Pale ale at noon. The beer is made with Comet hops and should be big on the citrus flavor.

Dublin’s (110 Wisconsin Ave., West Bend) hosts its third annual Darkest Day of the Year at 6 p.m. The pub is tapping more than two dozen big and barrel-aged brews – one of which is Lakefront Black Friday (in case you missed out on its release a couple of weeks ago).

Scotch beers are the subjects of the weekly free tasting at both Three Cellars locations (7228 S. 27th St. and N72 W13400 Lund Lane, Menomonee Falls) from 1 to 4 p.m.

Head to Discount Liquor Milwaukee (5031 W. Oklahoma Ave.) to sample beers from Lakefront and Tyranena from noon to 3 p.m.

Try beers from Dogfish Head at Discount Liquor Waukesha (919 N. Barstow St.) from noon to 3 p.m. From 5 to 7 p.m. you can sample Guinness and get an glass engraved with a purchase.

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Sunday, Dec. 17

Ray’s Growler Gallery (8930 W. North Ave.) hosts its annual Holiday Soiree at 4 p.m. Enjoy holiday-themed beers, boozy slushies and lots of folks wearing ugly sweaters (wearing one gets you deals on drinks).