Courtyard San Francisco Union Square

Official wording

Keep potentially hazardous foods (PHF) cold at 41°F or below or hot held at 135°F or above. Immediately discontinue storing PHF at room temperature., 114171, 114189.1, 114190, 114192, 114193, 114193.1, 114199, 114201, 114269 - Protect the potable water supply with a backflow protection device, as required by applicable plumbing codes. All plumbing, plumbing fixtures, and grease interceptors shall be installed in compliance with local plumbing ordinances, shall be maintained so as to prevent any contamination, and shall be kept clean, fully operative, and in good repair. Any hose used for conveying potable water shall be of approved materials, labeled, properly stored, and used for no other purpose.

In plain English

Food was not kept cold enough, hot enough, cooled fast enough, or cooked or reheated to the right temperature. Bacteria grow quickly in the "danger zone" between 41°F and 135°F, which makes this one of the most important food-safety checks.