Urban Plumbers Co San Francisco

Preventive maintenance frequency depends on the equipment and usage volume. As a general guideline: fryers and ovens should be inspected every 3-6 months; refrigeration equipment annually or semi-annually; ice machines every 6 months (including cleaning and sanitizing); exhaust hoods quarterly to semi-annually per NFPA 96; and dishwashers quarterly. High-volume operations benefit from more frequent service intervals.

Ice quality issues often indicate water system or refrigeration problems: cloudy ice suggests poor water quality or mineral content; soft ice indicates inadequate freeze cycle time or refrigerant issues; small or misshapen cubes typically point to low water flow, scale buildup on evaporator plates, or refrigerant problems. All of these issues affect the safety and quality of ice used in beverages and food service.

Critical food safety temperatures: Cold holding — 40°F (4°C) or below for refrigeration; freezer 0°F (-18°C) or below. Hot holding — 140°F (60°C) or above for steam tables and food warmers. Cooking temperatures vary by food type (145°F-165°F). Dishwasher final rinse — 180°F (82°C) for high-temp machines. Any equipment consistently failing to maintain these temperatures is both a safety risk and a health code violation.