Commercial wines are available by the glass, many at $1 an ounce, or $3 for two 1-ounce tastings.
The wines, from across California, were judged by price and residual sugar categories. Awards were given in multiple categories.
Award-winning house wines, which were also judged in the competition, are on display at the Courtyard but not available for consumption.
The wines may be top-notch, but Courtyard visitors don't have to be wine connoisseurs to receive the full benefit of the varietals, said volunteer Alisa Livingstone, who was pouring wine behind the Courtyard's counter Thursday.
"People love to talk about wine, and everyone has an opinion," Livingstone said. "I find that it's just fun to listen. You can serve the same bottle to 10 different people and everyone has a different opinion."
Livingstone sees everyone from first-time wine tasters to those who bring specialty briefcases packed with wine-specific glasses.
Livingstone served a Rodney Strong Estate Vineyards 2009 chardonnay from Sonoma County, which won the chairman's award in the recent competition.
The chardonnay, which has a 0.29% residual sugar, is a "nice, fresh wine" and "not too oaky," Graham said.
Another wine Graham described favorably was the South Coast Winery 2010 merlot rose, which had 0.00% residual sugar.
"It has very prominent fruit [aromas] in the nose," Graham said, adding that the chilled wine is refreshing.
Other wines available Thursday were gold medal winners Coastal Ridge 2009 pinot noir and Leveroni Vineyards 2009 pinot noir, and a bronze-winning Sobon Estate 2009 zinfandel.
Although the wines rotate and won't be available every day during the fair, the Courtyard's volunteers are sources for recommendations, Graham said.
The Courtyard also holds seminars throughout the fair on everything from the different varietals to proper pairings.
A lack of knowledge about wine shouldn't deter anyone from drinking it, Livingstone said.
"Don't be intimidated," Livingstone said. "I think the bottom line is just enjoy it."