Running-Water Thawing Requirements Under the Food Code

Running-water thawing is allowed only when the process controls water temperature, contamination, and the time that thawed food spends above refrigeration temperature. The Food Code gives specific conditions.

Temperature and water movement

Under § 3-501.13(B), the food must be completely submerged under running water at 21°C (70°F) or below. Water must move fast enough to agitate and float off loose particles in an overflow. A pan left under a stagnant tap or food sitting partly above water does not meet that description.

Time and food-type limits

For ready-to-eat food, the period must not allow thawed portions to rise above 5°C (41°F). For raw animal food that must be cooked, thawed portions may not remain above 41°F for more than four hours, counting exposure to running water and preparation time, or the time needed under refrigeration to lower the food back to 41°F. These conditions limit growth while allowing controlled preparation.

Other permitted methods

The Code also permits thawing under refrigeration at 5°C (41°F) or below, as part of cooking under specified conditions, and microwave thawing followed immediately by conventional cooking. A frozen ready-to-eat portion prepared immediately in response to a consumer’s order has a specific exception. Reduced-oxygen packaged fish has additional instructions for removing it from its package before thawing.

Manager checklist

• Keep food completely submerged and use running water no warmer than 70°F.
• Maintain enough flow to carry loose particles into an overflow and prevent recontamination.
• Track thawed portions and time above 41°F, especially for raw animal foods.
• Cook or return food to refrigeration within the Code’s time conditions.
• Follow the establishment’s adopted local code and written procedures.

Exam takeaway

Running water: 70°F or below, fully submerged, sufficient velocity, and time limits. Remember the four-hour cumulative limit for thawed raw animal food requiring cooking when portions are above 41°F.

Set up the sink before thawing Use a clean and sanitized food-preparation sink or other permitted setup, and protect surrounding food-contact equipment from splash. The food must be completely submerged under running potable water at or below 70°F (21°C). The flow must be strong enough to agitate and carry loose particles to an overflow; a bowl of standing water or a faucet trickling without movement does not meet the model method. Use a clean rack or weight if needed to keep the product submerged without contaminating it.

Plan the batch size so it thaws before the time limit is reached. Keep ready-to-eat food at or below 41°F as portions thaw. For raw animal food that will be cooked, the Food Code limits how long thawed portions may remain above 41°F to four hours, counting exposure to water and preparation time; its text also accounts for the time to lower the product back to 41°F under refrigeration. Use a timer, record the start, and check the warmest thawed portion. Do not use water warmer than the maximum to speed service.

Handle thawed food safely When raw meat, poultry, or seafood finishes thawing, cook it promptly or transfer it to refrigeration under the applicable limit. Keep it below ready-to-eat food in a leakproof pan and sanitize the sink, faucet, handles, and surrounding surfaces after use. If water splashed on clean utensils or ready-to-eat food, hold and assess the exposure; clean and sanitize affected equipment, and discard food that cannot be protected. A compliant thaw does not replace cooking, cold holding, or cross-contamination controls.

Reduced-oxygen packaged fish labeled to remain frozen until use must be removed from that package before thawing under refrigeration or at the point specified by the model code. This prevents hazards such as toxin formation in a low-oxygen environment. Other packaged foods may have manufacturer instructions; read the label and do not override it with a general thawing shortcut. The Code also has a narrow exception for a portion of frozen ready-to-eat food thawed and prepared immediately in response to an individual order.

Scenario: frozen roast arrives late A cook places a frozen roast under running water to serve it at lunch. The PIC checks the starting time, water temperature, submersion, flow, and whether the thawed surface has exceeded the permitted time. If the schedule cannot meet the rule, choose a different dish or continue a compliant refrigeration method; do not use warm water or leave the roast at room temperature. After the thaw, cook to the correct final temperature and sanitize the sink and prep area.

Exam traps Running water must be potable, 70°F or below, fast enough to flush particles, and food must remain fully submerged. The four-hour rule is not unlimited room-temperature thawing. Microwave thawing requires immediate cooking; thawing as part of cooking means there is no pause. Check local adoption and special package instructions.

If the cook cannot keep the food submerged and the water flowing because the sink is needed for another task, stop thawing and move the food to refrigeration. Do not use a handwashing sink. At completion, clear and sanitize the setup before returning it to produce washing, prep, or warewashing.

Calculate cumulative time, not just faucet time For raw animal food that must be cooked, the four-hour limit includes more than the period under running water. Include the time spent preparing the thawed portions for cooking and the Code's stated refrigeration interval for bringing the food back to 41°F. Start the timer when the thawing process begins and document any period outside temperature control. If a batch is split, track each portion so the warmest one does not exceed the limit unnoticed.

Ready-to-eat food has a stricter condition: thawed portions must not rise above 41°F during this method. If a thawed portion warms above 41°F, stop and assess immediately; do not rely on the raw-animal four-hour allowance for ready-to-eat food. A cooked-from-frozen process may be safer and simpler if the equipment and cooking instructions support it.