Tuesday, April 27Poor white zin has gotten itself all tangled up with cheap, silly wines that come in boxes and jugs. But the zinfandel grape can make a serious wine too; just ask the Zinfandel Advocates and Producers (ZAP), a nonprofit organization that is "dedicated to advancing public knowledge of and appreciation for American zinfandel and its unique place in our culture and history," according to their Web site, www.zinfandel.org. Of course, there are all kinds of styles and flavors of zinfandels -- red wines even -- and today is the day to learn about and taste zins from more than 50 ZAP wineries in California. St. Louis is the third stop of five on ZAP's Zin in the City Tour (Millennium Hotel, 200 South Fourth Street, 530-274-4900). The tasting is from 6 to 8 p.m., and tickets can be ordered at ZAP's Web site and are $44 in advance, $45 at the door.