CALDWELL, Idaho — Leslie Preston produced not only the best example of Riesling in the state, but the Garden City winemaker also won best in show with it at the fourth annual Idaho Wine Competition.

Her Coiled Wines 2012 Dry Riesling, which retails for $17, took the top award after receiving a unanimous double gold medal from the judges and earned the competition’s best white wine honor.

Cold Springs Winery in Hammett won best red wine for its 2009 Merlot. Cold Springs also won gold medals for its 2011 Chardonnay and 2010 L’attraction white blend.

Sawtooth Estate Winery in Nampa won best rosé for its 2012 Classic Fly Series Cinsault Rosé, while Camas Prairie Winery in Moscow won best dessert wine for its strawberry mead.

Also winning gold medals were Bitner Vineyards for its 2009 Petit Verdot Merlot blend, Clearwater Canyon Cellars for its 2011 Carménère, Fraser Vineyard for its 2011 Tempranillo and Ste. Chapelle for its 2012 Special Harvest Riesling.

“The Idaho Wine Competition is extremely important to the Idaho wine industry because it gives a sense of credibility to these wineries,” said Moya Dolsby, executive director of the Idaho Wine Commission. “It’s not only a marketing tool, but it’s validation. Consumers look a lot at what scores and awards the wines win, especially in the local papers.”

Idaho’s most popular grape variety is Riesling, and it’s typically produced in an off-dry style with residual sugar beyond 1 percent. Preston’s double gold medal came from a Riesling finished at 0.7% RS and bottled under a sleek screwcap. It was only her second vintage of Riesling done dry, and she produced 392 cases.

Preston launched Coiled Wines in 2008, choosing to raise her family in her home state of Idaho and leave her enology position at renowned Stags’ Leap Winery on the famed Silverado Trail in the Napa Valley.

The Idaho Wine Competition is run by Great Northwest and coordinated by the Idaho Wine Commission in Boise. It was staged held Monday at Ste. Chapelle.

Here are the complete results:

Double gold/Best in show/Best white

Coiled Wines 2012 Dry Riesling, Snake River Valley, $17

Gold/Best red

Cold Springs Winery 2009 Merlot, Snake River Valley, $15

Gold/Best rosé

Sawtooth Estate Winery 2012 Classic Fly Series Cinsault Rosé, Snake River Valley, $13

Gold/Best dessert

Camas Prairie Winery 2012 Strawberry Mead, Idaho, $14

Gold

Bitner Vineyards 2009 Petit Verdot Merlot, Snake River Valley, $23

Clearwater Canyon Cellars 2011 Carménère, Washington, $28

Cold Springs Winery 2011 Chardonnay, Snake River Valley, $10

Cold Springs Winery 2010 L’attraction: White Table Wine, Snake River Valley, $10

Fraser Vineyard 2011 Tempranillo, Snake River Valley, $24

Ste. Chapelle 2012 Special Harvest Riesling, Snake River Valley, $10

Huston Vineyards 2012 Chicken Dinner White, Snake River Valley, $16

Silver

Bitner Vineyards 2009 Cabernet Shiraz, Snake River Valley, $28

Camas Prairie Winery 2011 Lemberger, Washington, $15

Cellar 616 2011 Early One Primitivo, Snake River Valley, $26

Cinder Wines 2012 Chardonnay, Snake River Valley, $18

Cinder Wines 2011 Tempranillo, Snake River Valley, $28

Cinder Wines 2011 Cabernet Sauvignon/Malbec/Merlot, Snake River Valley, $27

Cinder Wines 2012 Laissez Faire, Snake River Valley, $17

Cinder Wines 2012 Dry Viognier, Snake River Valley, $18

Cinder Wines 2012 Off-Dry Viognier, Snake River Valley, $18

Clearwater Canyon Cellars 2011 Syrah, Idaho, $28

Coiled Wines 2010 Sidewinder Syrah, Snake River Valley, $25

Colter’s Creek Winery 2011 Syrah, Snake River Valley, $13

Fraser Vineyard 2011 Estate Cabernet Sauvignon, Snake River Valley, $28

Fraser Vineyard 2012 Petit Verdot, Snake River Valley, $30

Fraser Vineyard 2011 Couloir Cuvée, Snake River Valley, $21

Fujishin Family Cellars 2011 Late Harvest Chardonnay, Snake River Valley, $22

Fujishin Family Cellars 2011 Petite Sirah, Snake River Valley, $22

Huston Vineyards 2012 Reserve Chardonnay, Snake River Valley, $24

Huston Vineyards 2011 Malbec, Snake River Valley, $29

Huston Vineyards 2011 Merlot, Snake River Valley, $27

Indian Creek Winery 2010 Cabernet Sauvignon, Snake River Valley, $15

Indian Creek Winery 2010 Malbec, Snake River Valley, $22

Indian Creek Winery 2011 Tempranillo, Snake River Valley, $20

Indian Creek Winery 2011 Pinot Noir, Snake River Valley, $16

Indian Creek Winery 2011 Star Garnet Red Blend, Snake River Valley, $14

Indian Creek Winery 2010 Mimi Series Reserve Blend, Snake River Valley, $28

Indian Creek Winery 2011 White Riesling, Snake River Valley, $10

Indian Creek Winery 2011 Ragin’ Rapids Sweet Riesling, Snake River Valley, $16

Indian Creek Winery 2012 White Pinot Noir, Snake River Valley, $10

Koenig Vineyards 2011 Merlot, Snake River Valley, $20

Koenig Vineyards 2010 Petite Sirah, Snake River Valley, $25

Koenig Vineyards 2010 Alden Cuvée, Snake River Valley, $50

Koenig Vineyards 2012 Dry Rosé, Snake River Valley, $15

Pend d’Oreille Winery 2011 Chardonnay, Snake River Valley, $18

Sawtooth Estate Winery 2011 Classic Fly Series Chardonnay, Snake River Valley, $20

Sawtooth Estate Winery 2011 Trout Trilogy Malbec, Snake River Valley, $30

Sawtooth Estate Winery 2012 Pinot Gris, Snake River Valley, $12

Sawtooth Estate Winery 2012 Riesling, Snake River Valley, $12

Snake River Winery 2011 Cabernet Sauvignon, Snake River Valley, $15

Snake River Winery 2011 Touriga Naçional, Snake River Valley, $18

Ste. Chapelle 2012 Merlot, Snake River Valley, $10

Ste. Chapelle 2012 Chateau Series Moscato, Snake River Valley, $9

Ste. Chapelle 2010 Winemaker Series Syrah, Snake River Valley, $10

Telaya Wine Co. 2010 Cabernet Sauvignon Columbia Valley $30

Vale Wine Co. 2010 Cabernet Sauvignon, Snake River Valley, $24

Vale Wine Co. 2010 U50 Cabernet Sauvignon, Snake River Valley, $38

Vale Wine Co. 2011 Chardonnay, Snake River Valley, $16

Williamson Vineyards 2010 Reserve Petite Sirah, Snake River Valley, $35

Williamson Vineyards 2010 Homestead Red, Snake River Valley, $18

Bronze

Bitner Vineyards 2009 Cabernet Sauvignon, Snake River Valley, $25

Bitner Vineyards 2010 Menopause Merlot, Snake River Valley, $26

Bitner Vineyards 2012 Riesling, Snake River Valley, $17

Cellar 616 2012 Riesling, Snake River Valley, $18

Cinder Wines 2011 Syrah, Snake River Valley, $27

Clearwater Canyon Cellars 2011 Malbec, Washington, $25

Clearwater Canyon Cellars 2011 Merlot, Idaho/Washington, $25

Clearwater Canyon Cellars 2011 Renaissance Red, Washington/Idaho, $23

Clearwater Canyon Cellars 2012 Lochsa, Idaho/Washington, $15

Coiled Wines 2010 Black Mamba, Snake River Valley, $28

Cold Springs Winery 2008 Chron/ology, Snake River Valley, $20

Cold Springs Winery 2011 Viognier, Snake River Valley, $10

Colter’s Creek Winery 2010 Reserve Chardonnay, Idaho, $15

Colter’s Creek Winery 2010 Kooskooskia Red, Idaho, $20

Colter’s Creek Winery 2012 Riesling, Idaho, $11

Colter’s Creek Winery 2012 Viognier, Idaho, $15

Fraser Vineyard 2011 Malbec, Washington, $28

Fraser Vineyard 2011 Petite Sirah, Snake River Valley, $30

Fujishin Family Cellars 2012 Gewurztraminer, Snake River Valley, $15

Fujishin Family Cellars 2011 Malbec/Syrah, Snake River Valley, $35

Fujishin Family Cellars 2010 Syrah, Snake River Valley, $22

Fujishin Family Cellars 2011 Viognier, Snake River Valley, $15

Hat Ranch Winery 2012 Riesling, Snake River Valley, $18

Hells Canyon Winery NV Blonde, Snake River Valley, $11

Huston Vineyards 2012 Chicken Dinner Red, Snake River Valley, $18

Indian Creek Winery 2011 Merlot, Snake River Valley, $15

Indian Creek Winery 2010 Mimi Series Reserve Pinot Noir, Snake River Valley, $25

Indian Creek Winery 2011 Syrah, Snake River Valley, $15

Indian Creek Winery 2012 Viognier, Snake River Valley, $12

Koenig Vineyards 2011 Pinot Noir, Snake River Valley, $25

Koenig Vineyards 2010 Amelia Cuvée, Snake River Valley, $50

Pend d’Oreille Winery 2011 Meyer Reserve Chardonnay, Snake River Valley, $30

Pend d’Oreille Winery 2011 Petit Verdot, Washington, $30

Pend d’Oreille Winery 2010 Bistro Rouge, Washington, $14

Pend d’Oreille Winery 2008 Syrah, Washington, $21

Sawtooth Estate Winery 2012 Classic Fly Series Gewürztraminer, Snake River Valley, $13

Sawtooth Estate Winery 2012 Syrah, Snake River Valley, $14

Snake River Winery 2012 Unoaked Chardonnay, Snake River Valley, $12

Snake River Winery 2010 Malbec, Snake River Valley, $20

Snake River Winery 2007 Merlot, Snake River Valley, $16

Snake River Winery 2008 Arena Valley Vineyard Barbera, Snake River Valley, $19

Snake River Winery 2010 Arena Valley Vineyard Barbera, Snake River Valley, $19

Snake River Winery 2011 Cabernet Franc, Snake River Valley, $20

Snake River Winery 2010 GSM, Snake River Valley, $21

Snake River Winery 2012 Arena Valley Riesling, Snake River Valley, $10

Ste. Chapelle 2012 Cabernet Sauvignon, Snake River Valley, $10

Ste. Chapelle 2012 Chardonnay, Snake River Valley, $10

Ste. Chapelle 2012 Sauvignon Blanc, Snake River Valley, $10

Ste. Chapelle 2011 Treasure Valley Red , Snake River Valley, $15

Ste. Chapelle 2012 Gem State Red, Snake River Valley, $10

Ste. Chapelle 2011 Treasure Valley Reserve Syrah, Snake River Valley, $12

Telaya Wine Co. 2009 Syrah Columbia Valley $28

Vale Wine Co. 2010 Rendezvous Red, Snake River Valley, $22

Williamson Vineyards 2010 Sangiovese, Snake River Valley, $18

Woodriver Cellars NV Dessert Wine, Snake River Valley, $29