§ 46.674. Warewashing equipment: mechanical or manual.
(a) Cleaning frequency. A warewashing machine; the compartments of sinks, basins, or other receptacles used for washing and rinsing equipment, utensils, or raw foods, or laundering wiping cloths; and drainboards or other equipment used to substitute for drainboards as specified in § 46.613 (relating to drainboards) shall be cleaned as follows:
(1) Before use.
(2) Throughout the day at a frequency necessary to prevent recontamination of equipment and utensils and to ensure that the equipment performs its intended function.
(3) If used, at least every 24 hours.
(b) Cleaning agents. When used for warewashing, the wash compartment of a sink, mechanical warewasher or wash receptacle of alternative manual warewashing equipment as specified in § 46.612(c) (relating to manual warewashing: sink compartment requirements), shall contain a wash solution of soap, detergent, acid cleaner, alkaline cleaner, degreaser, abrasive cleaner or other cleaning agent according to the cleaning agent manufacturer’s label instructions.
(c) Clean solutions. The wash, rinse and sanitize solutions shall be maintained clean.
(d) Chemical sanitization: temperature, pH, concentration and hardness. A chemical sanitizer used in a sanitizing solution for a manual or mechanical operation at exposure times specified in § 46.731(c)(3) (relating to sanitization: requirement, frequency and methods) shall be listed in 21 CFR 178.1010 (relating to sanitizing solutions), shall be used in accordance with the EPA-approved manufacturer’s label use instructions, and shall be used as follows:
(1) A chlorine solution shall have a minimum temperature based on the concentration and pH of the solution as listed in the following chart:
| Minimum Concentration | Minimum Temperature for Solution with pH of 10 or less | Minimum Temperature for Solution with pH of 8 or less |
| 25 mg/L (ppm) | 49°C (120°F) | 49°C (120°F) |
| 50 mg/L (ppm) | 38°C (100°F) | 24°C (75°F) |
| 100 mg/L (ppm) | 13°C (55°F) | 13°C (55°F) |
(2) An iodine solution shall have the following:
(i) A minimum temperature of 24°C (75°F).
(ii) A pH of 5.0 or less or a pH no higher than the level for which the manufacturer specifies the solution is effective.
(iii) A concentration between 12.5 mg/L (ppm) and 25 mg/L (ppm).
(3) A quaternary ammonium compound solution shall:
(i) Have a minimum temperature of 24°C (75°F).
(ii) Have a concentration as specified in § 46.731 and as indicated by the manufacturer’s use directions included in the labeling.
(iii) Be used only in water with 500 mg/L (ppm) hardness or less or in water having a hardness no greater than specified by the manufacturer’s label.
(4) If another solution of a chemical specified in paragraphs (1)—(3) is used, the food facility operator shall demonstrate to the Department that the solution achieves sanitization and the use of the solution may be approved by the Department.
(5) If a chemical sanitizer other than chlorine, iodine or a quaternary ammonium compound is used, it shall be applied in accordance with the manufacturer use directions included in the labeling.
(e) Determining chemical sanitizer concentration. Concentration of the sanitizing solution shall be accurately determined by using a test kit or other device.
This section cited in 7 Pa. Code § 46.304 (relating to wiping cloths: use limitations); 7 Pa. Code § 46.676 (relating to manual warewashing equipment); 7 Pa. Code § 46.731 (relating to sanitization: requirement, frequency and methods); 7 Pa. Code § 46.752 (relating to methods of laundering); and 7 Pa. Code § 46.772 (relating to wiping cloths: air-drying locations).
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