Most mortuary coolers run between 35°F and 40°F. That range keeps remains cold enough to slow decomposition without freezing them. Here’s why that range is standard, when a freezer is a better choice, and how to keep your cooler where it should be.

The standard range: 35°F to 40°F

Refrigeration slows the natural processes that cause decomposition. It doesn’t stop them, but it buys time for identification, arrangements, services, and transfer.

International guidance agrees. The field manual Management of Dead Bodies After Disasters, published by the Pan American Health Organization, the World Health Organization, and the Red Cross, states that “refrigeration between 2°C and 4°C (35.6°F and 39.2°F) is the best option” for storing remains (PAHO/WHO/ICRC/IFRC, 2016, p. 24).

AWIC mortuary coolers typically run between 35°F and 40°F, and the controls are fully adjustable, so you can match what your facility, state, or medical examiner requires.

Why not colder?

A cooler isn’t a freezer. Holding just above freezing has practical advantages for short-term storage:

• Remains are ready for viewing, preparation, or autopsy without thawing.
• Tissue isn’t damaged by ice crystal formation.
• A cooler costs less to run than a freezer.

When you need a freezer

Freezing is for long-term holding: weeks or months rather than days. Common cases include:

• Unidentified or unclaimed remains held by a medical examiner or coroner
• Bodies held during a lengthy investigation
• Donor bodies in anatomy and medical school programs

Freezers need an insulated floor, heated door frames, and a refrigeration system sized for freezer duty. See morgue freezers.

How long can a body stay in a mortuary cooler?

There’s no single answer. It depends on state law, the condition of the remains, whether they’ve been embalmed, and how steadily the cooler holds temperature. Refrigeration extends the time available, but it doesn’t preserve remains indefinitely. For long-term holding, use a freezer.

Many states set rules on how long remains can be held before embalming, refrigeration, or disposition. Check with your state funeral board or health department for the rules that apply to you.

Monitoring: know before there’s a problem

A cooler that drifts warm overnight is a serious problem. These features help you catch it early:

• A digital temperature display on the outside of the unit lets staff check without opening the door. AWIC walk-in mortuary coolers include one.
• A high/low temperature and power-failure alarm. AWIC’s alarm option includes field-adjustable set points, a time delay, audible, visual, and remote alerts, and a battery backup that keeps it working during a power outage.
• A written temperature log. Record the reading at the start and end of each day. It helps you spot a slow drift and shows inspectors you’re checking.
• Tight door seals. Dart-mount magnetic gaskets and self-closing doors keep warm air out. Check gaskets regularly for tears or gaps.

What to do if your cooler fails

1. Keep the door closed. An insulated box holds its temperature for a while if it isn’t opened.
2. Check the basics. Is the power on? Has a breaker tripped? Is the thermostat set correctly?
3. Call your refrigeration service company. Have your model and order number ready.
4. Plan for backup. If repair will take more than a few hours, arrange to move remains to another cooler: a second unit, a nearby funeral home, or a hospital.
5. Document it. Record the times and temperatures. Your state may require it, and it protects you.

A second cooler, even a small body box, gives you a ready backup and is worth considering for any facility that can’t afford downtime.

Keep it running

• Keep the condenser coil clean, and leave clearance for airflow: about 36″ above a top-mounted refrigeration unit.
• Don’t block the evaporator inside the cooler with racks or supplies.
• Have a refrigeration contractor service the system on a regular schedule.
• Replace worn door gaskets promptly.

Quick answers

What temperature is a morgue?

Morgue coolers are usually kept between 35°F and 40°F. Morgue freezers, used for long-term storage, run below freezing, at the temperature your facility specifies.

Can I set an AWIC mortuary cooler to a specific temperature?

Yes. The controls are fully adjustable to your facility’s requirements.

Does a mortuary cooler need an alarm?

It’s strongly recommended. A temperature and power-failure alarm alerts you before a failure becomes a loss.

Need a cooler that holds steady? Call 1-800-430-4468 or explore mortuary coolers.