GEOLOGY AND WINE: Geologist Lawrence Meinert discusses how soil and geology affect the taste and quality of wine by leading blind tastings. Light refreshments. 7-9 p.m. $36. Green Spring Gardens, 4603 Green Spring Rd., Alexandria area. 703-642-5173. www.greenspring.org.
GARDEN STROLL AND TEA: Tour of the demonstration gardens with a master gardener docent, followed by a traditional English afternoon tea. 1-3 p.m. $29. Green Spring Gardens, 4603 Green Spring Rd., Alexandria area. 703-941-7987. www.greenspring.org.
TASTE OF ARMENIA: Traditional Armenian food, gifts, music and vendors. 4-9 p.m. Friday; noon-10 p.m. Saturday, 10 a.m.-11 p.m. Free. Soorp Khatch Armenian Apostolic Church, 4906 Flint Dr., Bethesda. 301-229-8742. soorpkhatchchurch.org.
WINE CLASS: Focuses on sweet wines. 7:15 p.m. $25. Chain Bridge Cellars, 1351 Chain Bridge Rd., McLean. 703-356-6500. www.chainbridgecellars.com.
WINE DINNER: Five courses featuring Soliste Cellars with winemaker Claude Koeberle. 6:30 p.m. $100, not including tax and gratuity. Charlie Palmer Steak, 101 Constitution Ave. NW. 202-547-8100. www.charliepalmer.com.
PORTFOLIO WINE TASTING: Paul’s Wine and Spirits hosts its 13th annual Wines for Canines and Felines event benefiting the Montgomery County Humane Society, with more than 100 wines, a buffet and silent auction. 6:30-9 p.m. $75. Maggiano’s Little Italy, 5333 Wisconsin Ave. NW. 202-537-1900. www.paulsdc.com.
GREEK FESTIVAL: Saints Constantine and Helen Greek Orthodox Church of Washington will holds its annual event featuring traditional Greek cuisine, beer and wines, live music, a Greek marketplace, children’s activities and more. Noon-9 p.m.; Sunday, 11 a.m.-8 p.m. Free. St. Andrew Ukrainian Orthodox Cathedral, 15100 New Hampshire Ave., Silver Spring. 240-389-1366. www.schgocdc.org.
AFTERNOON TEA: Full tea followed by the opportunity to make a carved-pumpkin autumn arrangement to take home. 1 p.m. $35. Aldie Mill, 39401 John Mosby Hwy., Aldie. 703-327-9777. www.nvrpa.org/park/aldie_mill_historic_park.
BOOK SIGNING: Washington Post deputy Food editor Bonnie S. Benwick discusses and signs copies of “The Washington Post Cookbook: Readers’ Favorite Recipes.” Copies of the book will be 20 percent off during the signing. 11 a.m.-1 p.m. Free. 703-836-4435. www.lacuisineus.com.
COOKING CLASS: Focuses on dishes with fall squash and mushrooms. Includes wine and family-style lunch. 10 a.m.-2 p.m. $115, including tax and gratuity. 1789, 1226 36th St. NW. 202-965-1789. 1789restaurant.com.
MAINE RECEPTION: A Celtic music concert followed by a reception featuring Maine beer, wines and cheeses. Proceeds support scholarships for Maine college students. 2 p.m. $25 ($20 in advance). The Lyceum, Alexandria’s History Museum, 201 S. Washington St., Alexandria. 703-836-1938. mainestatesociety.org.
COFFEE EVENT: Attendees learn about coffee farming, get brewing tips and taste several coffee varieties. Counter Culture Training Center, 1840 Columbia Rd. NW, Suite 203. 7-9 p.m. Free.
CULINARY LECTURE: Beer expert and author Rob Kasper gives a presentation on the history of beer brewing in Baltimore. 2:30-4:30 p.m. Free. Bethesda-Chevy Chase Regional Services Center, Meeting Room A, 4805 Edgemoor Lane, Bethesda. 301-320-6979. www.chowdc.org.
SHRIMP AND OYSTER FEAST: All-you-can-eat steamed shrimp and fried oysters. Proceeds benefit the Bethesda-Chevy Chase Rescue Squad. 1-5 p.m. $45. Bethesda-Chevy Chase Rescue Squad, 5020 Battery Lane, Bethesda. 301-977-6634. www.bccrs.org.
TASTE OF H: Fundraiser for J.O. Wilson Elementary School with food from H Street restaurants, music, wine, beer and silent auctions. 5-9 p.m. $35. Atlas Performing Arts Center, 1333 H St. NE. www.tasteofh.org.
BOOK TALK: Allen Salkin discusses his book “From Scratch: Inside the Food Network.” 7:30-9 p.m. $18; $15 students and seniors. D.C. Jewish Community Center, 1529 16th St. NW. 202-518-9400. www.washingtondcjcc.org.
COOKING CLASS: Session focuses on fall foods. 7 p.m. $60. Roundz Gourmet Market & Catering, 2299 Johns Hopkins Rd., Gambrills. 443-292-4631. www.roundz.com.
FAIRY TEA AND TREATS: Children dress up, partake in a dessert tea with costumed interpreters, tour the gardens and make a craft. 1:30-3 p.m. $25; $10 adults. Tudor Place, 1644 31st St. NW. 202-965-0400. www.tudorplace.org.
DRINKS SEMINAR: Amy Stewart discusses her book “The Drunken Botanist: The Plants That Create the World’s Great Drinks.” Includes snacks and drinks. 6:30-8:30 p.m. $35. U.S. Botanic Garden, 100 Maryland Ave. SW. 202-225-8333. www.usbg.gov.
WINE CLASS: Tasting of six cabernet sauvignon wines. 7-9 p.m. $40, not including tax and gratuity. Vinoteca Wine Bar & Bistro, 1940 11th St. NW. 202-332-9463. www.vinotecadc.com.
WINE DINNER: Five courses with Mark and Allison Ketcham of Ketcham Estate. 6:30 p.m. $125, not including tax and gratuity. Bourbon Steak, 2800 Pennsylvania Ave. NW. 202-944-2026. www.bourbonsteakdc.com.
WINE TASTING: Six wines from Destination and Honor wineries with hors d’oeuvres. 6:30-8:30 p.m. $25. The Ritz-Carlton Hotel-Tysons Corner, 1700 Tysons Blvd., McLean. 703-506-4300. www.ritzcarlton.com/tysons.
CHIEFS VS. CHEFS: Fundraiser for Arlington Food Assistance Center in which area chefs compete against firehouse cooks in a three-course competition. 6:30-9:30 p.m. $100. Clarendon Ballroom, 3185 Wilson Blvd., Arlington. 703-845-8486. www.afac.org.
WINE DINNER: Five courses with Bertani Amarone and other Italian wines. 6:30 p.m. $250, not including tax and gratuity. Bourbon Steak, 2800 Pennsylvania Ave. NW. 202-944-2026. www.bourbonsteakdc.com.
WINE DINNER: In conjunction with Chain Bridge Cellars, a multi-course meal with winemaker Vittorio Fiore featuring his Poggio Scalette and Castelluccio wines. 6:30 p.m. $95, including tax and gratuity. Assaggi Osteria, 6641 Old Dominion Dr., McLean. 703-918-0080. www.assaggiosteria.com.
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