Brewers are experimental by nature, constantly turning out new brews. This week: molasses porter and others that might disappear quickly.    Time Stealers Molasses Porter  Spiteful Brewing (1815 W. Berteau Ave.) has shown a special affection for dark beers. Although molasses can be tricky to get right in a beer, it can also lend to pleasantly potent mouthfeel and some serious gravity. Cigar City + New Belgium  New Belgium Brewing’s Lips of Faith series is all pretty wild. “Do you trust us?” its website asks. If they can pull off a coconut-curry hefeweizen (which I was actually quite taken with), it’s worth checking out this slightly less deranged combination of hot peppers and cedar. The Face Anchors There’s satisfaction in doing a good deed. And in drinking, too. The Face Anchors American pale at Haymarket Brewery (737 W. Randolph St.) lets you combine those two with this brew; a portion of the proceeds from each pint goes to support a local Movember squad raising money for men’s health. Undead Party Crasher Does Undead Party Crasher taste familiar? That’s because it’s really just a new name and label for Clown Shoes’ Vampire Slayer. There was some legal basis for changing the name, which always seemed misleading anyway—the beer is black as night, thick as blood, and completely without garlic notes. Photo: © Michelle Klosinski, Groupon