SANGRIA MAKING AND TAPAS DINNER: Tips on how to make sangria. Includes tapas, sangria and live paella-making. 6-9 p.m. The dinner repeats July 24 and July 31, 6-9 p.m. $45, including tax and gratuity. La Tasca, 722 Seventh St. NW. 202-347-9190. www.latascausa.com.


WINE DINNER: Multi-course meal featuring wines from Ankida Ridge Vineyards and Granite Heights Winery. 7 p.m. $119, not including tax and gratuity. Ashby Inn & Restaurant, 692 Federal St., Paris. 540-592-3900. www.ashbyinn.com.


WINE TASTING: Featuring summer wines. 7 p.m. Free. One More Page Books, 2200 N. Westmoreland St., No. 101, Arlington. 703-300-9746. www.onemorepagebooks.com.


COOKING CLASS: The session focuses on Spanish recipes. 11 a.m. $85. Patowmack Farm, 42461 Lovettsville Rd., Lovettsville. 540-822-9017. www.patowmackfarm.com.

FARM DINNER: Farm tour followed by cocktails and dinner with guest Pati Jinich, author of “Pati’s Mexican Table,” whose dishes will be featured in the meal. Proceeds benefit the Piedmont Environmental Council. $150, including a signed copy of the book. East Lynn Farm, 19955 Airmont Rd., Round Hill. 540-316-9980. www.pecva.org.

MUSSEL THROWDOWN AND BEER TASTING: Chefs compete to prepare the best mussels and identify Belgian beers in a blind taste test. 11 a.m.-3 p.m. $5 for one beer or pot of mussels. Eastern Market, 225 Seventh St. SE. www.belgianrestaurantweekdc.com.

PURCELLVILLE WINE AND FOOD FESTIVAL: Wine, food and music. 4-9 p.m. Free admission; wine samples typically $5 or less. North 21st Street between Main and O streets, Purcellville. www.purcellvillewineandfood.com.

SUMMER MARKET FAIR: Food, beverages, 18th-century music, vendors and more. 11 a.m.-4:30 p.m.; Sunday, 11 a.m.-4:30 p.m. $6; children ages 3-12 and seniors $3. Claude Moore Colonial Farm at Turkey Run, 6310 Georgetown Pike, McLean. 703-442-7557. www.1771.org.


BOUNTY OF THE BAY PARTY: Crab boil, oysters and sides. 6 p.m. $45, including tax and gratuity. Jackson 20, 480 King St., Alexandria. 703-842-2790. www.jackson20.com.

CELEBRITY WAITER NIGHT: Silent auction and dinner fundraiser for the Root 53 Foundation features a three-course meal served by NFL players including Moise Fokou, Vernon Davis, Muhammad Wilkerson and Torrey Smith. 7 p.m. $75, including tax and gratuity. Del Frisco’s Grille, 1201 Pennsylvania Ave. NW. 310-948-3609. www.root53foundation.org.

THE DC SCOOP: Samples from area ice cream, gelato, frozen yogurt and custard vendors and others. Activities include cooking demonstrations, music and live entertainment. 1-4 p.m. Free. Union Market, 1309 Fifth St. NE. www.unionmarketdc.com.


MASON DIXON MASTER CHEF TOURNAMENT: Multi-week, single-elimination tournament consisting of 16 teams of chefs who prepare courses for judges and select ticket-holders. Ten percent of the net proceeds from tickets goes to Meals on Wheels of Central Maryland. 6-9 p.m.; Tuesday, 6-9 p.m. $35 ($25 in advance), including tax; $55 ($45 in advance) for the judging experience ticket. Mari Luna Bistro, 1225 Cathedral St., Baltimore. www.masondixonmasterchef.com.

WINE DINNER: Bourbon Steak head sommelier Julian Mayor and Plume Restaurant head sommelier Michael Scaffidi compete for the best wine pairings to accompany five courses. 7 p.m. $100, not including tax and gratuity. Bourbon Steak, 2800 Pennsylvania Ave. NW. 202-944-2026. www.bourbonsteakdc.com.


CHEFS PANEL: A discussion of how six chefs got started in the hospitality industry, their career paths and the Washington food scene. Features Kyle Bailey of the Neighborhood Restaurant Group; Bertrand Chemel of 2941 Restaurant; Brian McBride of RW Restaurant Group; Andrew Markert of Beuchert’s Saloon; Todd Gray of Equinox, Muse at the Corcoran and Market Salamander; and Geoff Tracy of Chef Geoff’s. 11 a.m.-1 p.m. $45. A portion of the proceeds benefits D.C. Central Kitchen and Nourish Now. Howard Theatre, 620 T St. NW. www.dcindustree.com.


LOBSTER DINNER: Maine lobsters, beer and cocktails. A portion of the proceeds benefits Bike to the Beach, a fundraiser for Autism Speaks. 6-9 p.m. $75. P.J. Clarke’s, 1600 K St. NW. 202-463-6610. www.biketothebeach.org.

SCIENCE OF COOKING: Author, former Washington Post columnist and professor emeritus of chemistry Robert Wolke answers cooking science questions. The session includes dessert. 6:45-8:15 p.m. $30. Mitsitam Cafe, Fourth Street and Independence Avenue SW. 202-633-3030. www.smithsonianassociates.org.


DISCUSSION AND BOOK SIGNING: Washington Post deputy Food editor Bonnie S. Benwick talks about “The Washington Post Cookbook: Readers’ Favorite Recipes,” with samples from the book. Free; discounted books available for purchase. 5-6:30 p.m. Politics & Prose, 5015 Connecticut Ave. NW. 202-364-1919. www.politics-prose.com.

Becky Krystal

SEND NOTICES to: To Do, Food, The Washington Post, 1150 15th St. NW, Washington, D.C. 20071, or e-mail food@washpost.com, 14 days in advance. To find more calendar items, go to www.washingtonpost.com/gog/dc-events.html and click on "Food Events."