The county launched its new restaurant grading system, giving foodies some useful insight on where to eat—while also noting a few places that had issues, unless you enjoy food prepped in "vermin"-infested kitchens.

Twenty restaurants were ordered to shut down by Santa Clara County inspectors in the last six months, according to the latest report. The restaurants included chain locations such as Burger King, Wingstop, Noah's New York Bagels and Una Más, as well as a range of mom-and-pop eateries. The reason for closures ranged from "contamination from vermin" and inadequate supplies of hot and cold water to one whopper of a sewage problem. Most, however, weren't down for long after resolving the issues.

“Whether you’re grabbing a quick lunch or settling in for a fancy dinner, you want to know that the food was prepared in a kitchen that’s clean and safe,” Supervisor Joe Simitian said Friday.

Santa Clara County's Department of Environmental Health now requires restaurants to post their health scores in their front window—green for pass, yellow for conditional pass and red for fail—as well as submit more information to its easy-to-peruse database.

Below is the full list of restaurants cited for serious violations in the past six months, including their re-open date:

NOAH'S NEW YORK BAGELS #2802

2380 EL CAMINO REAL, SANTA CLARA, CA 95050

Closure date: Oct. 01, 2014

Reason: Failure to properly dispose of sewage through a sewer system.

Reopen date: Oct. 01, 2014

BAY AREA HOT BREADS

464 E EL CAMINO REAL

SUNNYVALE, CA 94087

Closure date: Sept. 25, 2014

Reason: Food is subject to contamination from vermin.

Reopen date: Sept. 26, 2014

CHA CA LONG PHUNG

2145 TULLY RD

SAN JOSE, CA 95122

Closure date: Sept. 25, 2014

Reason: Food is subject to contamination from vermin.

Reopen date: Sept. 29, 2014

LOCK-CHUN RESTAURANT

4495 STEVENS CREEK BL

SANTA CLARA, CA 95051

Closure date: Sept. 15, 2014

Reason: Food is subject to contamination from vermin.

Reopen date: Sept. 16, 2014

SAVOY CAFE

1030 N 10TH ST

SAN JOSE, CA 95112

Closure date: Sept. 2, 2014

Reason: Food is subject to contamination from vermin.

Reopen date: Sept. 5, 2014

DONG QUE RESTAURANT

2852 ALUM ROCK AV

SAN JOSE, CA 95127

Closure date: Aug. 25, 2014

Reason: Food is subject to contamination from vermin.

Reopen date: Aug. 26, 2014

VENUS TAM'S CAFE

20956 HOMESTEAD RD

CUPERTINO, CA 95014

Closure date: Aug. 21, 2014

Reason: Food is subject to contamination from vermin.

Reopen date: Aug. 22, 2014

NEW PORT RESTAURANT

1686 S WOLFE RD

SUNNYVALE, CA 94087

Closure date: Aug. 20, 2014

Reason: Food is subject to contamination from vermin.

Reopen date: Aug. 21, 2014

WON KEE SEAFOOD RESTAURANT

206 BARBER CT

MILPITAS, CA 95035

Closure date: Aug. 12, 2014

Reason: Food is subject to contamination from vermin.

Reopen date: Aug. 13, 2014

VILLAGE CHEESE HOUSE

855 EL CAMINO REAL

PALO ALTO, CA 94301

Closure date: July 31, 2014

Reason: Failure to provide an adequate supply of hot and cold water.

Reopen date: July 31, 2014

WINGSTOP #549

5353 ALMADEN EX

SAN JOSE, CA 95118

Closure date: July 30, 2014

Reason: Failure to provide an adequate supply of hot and cold water.

Reopen date: July 31, 2014

THAI PEPPER CUISINE

103 E FREMONT AV

SUNNYVALE, CA 94087

Closure date: July 10, 2014

Reason: Failure to provide required utilities.

Reopen date: July 15, 2014

DAKAO SANDWICHES

98 E SAN SALVADOR ST

SAN JOSE, CA 95112

Closure date: July 8, 2014

Reason:Food is subject to contamination from vermin.

Reopen date: July 9, 2014

PARADISE BIRYANI POINTE

2961 EL CAMINO REAL

SANTA CLARA, CA 95051

Closure date: July 1, 2014

Reason: Failure to provide an adequate supply of hot and cold water.

Reopen date: July 2, 2014

UNA MAS

2559 N 1ST ST

SAN JOSE, CA 95131

Closure date: June 20, 2014

Reason: Food is subject to contamination from vermin.

Reopen date: June 25, 2014

SWAGAT INDIAN CUISINE

68 S ABEL ST

MILPITAS, CA 95035

Closure date: June 19, 2014

Reason: Failure to provide an adequate supply of hot and cold water.

Reopen date: June 20, 2014

RESIDENCE INN BY MARRIOTT

18620 MADRONE PY

MORGAN HILL, CA 95037

Closure date: June 2, 2014

Reason: Failure to provide an adequate supply of hot and cold water.

Reopen date: June 2, 2014

VILLAGE FALAFEL

20010 STEVENS CREEK BL

CUPERTINO, CA 95014

Closure date: May 29, 2014

Reason: Food is subject to contamination from vermin.

Reopen date: May 31, 2014

PHO HOANG LONG

1741 N MILPITAS BL

MILPITAS, CA 95035

Closure date: May 21, 2014

Reason: Food is subject to contamination from vermin.

Reopen date: May 22, 2014

BURGER KING #1673

3750 EL CAMINO REAL

SANTA CLARA, CA 95051

Closure date: April 29, 2014

Reason: Failure to properly dispose of sewage.

Reopen date: April 29, 2014

Jennifer Wadsworth is the news editor for San Jose Inside and Metro Silicon Valley. Email tips to [email protected]. Follow her on Twitter at @jennwadsworth. Or, click here to sign up for text updates about what she’s working on.