Hot Food Holding CabinetsFull-Size
Metro C599L-***- Hot Food Holding Cabinet Manual
Setup, everyday use, maintenance and troubleshooting for the 23.7 cu. ft. full-size heated holding cabinet, with verified specifications.
- Interior volume23.7 cu. ft.
- Doors2 solid
- Idle power290 W
- Est. yearly cost$185
About the Metro C599L-***-
Metro model C599L-***- is a 23.7 cu. ft. full-size heated holding cabinet that meets ENERGY STAR requirements for food-service equipment. It has 2 solid doors, which insulate better than glass.
With 23.7 cu. ft. of interior volume, it falls into the full-size class (13 to 28 cu. ft.), the typical single-section reach-in or pass-through footprint. Its job is to keep food that is already cooked hot, safe and presentable until service — not to cook or reheat it.
In the standardized ASTM F2140 idle test, the cabinet drew 290 W while empty and holding at temperature, or 12.2 W per cubic foot of interior space. That beats 31% of the 135 full-size models in our database on a per-cubic-foot basis.
The ENERGY STAR maximum idle rate for a cabinet of this volume is 301 W, so this model comes in 4% below the limit.
Specifications
| Brand | Metro |
|---|---|
| Model number | C599L-***-** |
| Size class | Full-Size |
| Interior volume | 23.7 cu. ft. |
| Number of doors | 2 |
| Door type | Solid |
| Idle energy rate | 289.9 W |
| Idle rate per cu. ft. (calculated) | 12.2 W |
| ENERGY STAR maximum for this volume | 301.4 W |
| Below the ENERGY STAR maximum | 4% |
Safety information
- Plug the cabinet into a properly grounded receptacle that matches the cord cap and the voltage on the data plate. Do not use extension cords, adapter plugs or power strips, and never remove the grounding prong.
- Interior walls, racks, pans and door frames get hot. Use dry oven mitts when loading and unloading.
- This cabinet is designed to hold hot food, not to cook, thaw or reheat it. Food warmed slowly in a holding cabinet spends too long in the temperature danger zone (41–135 °F).
- Unplug the cabinet and let it cool before cleaning. Do not hose down or pressure-wash it; water can reach electrical components.
- Keep ventilation openings and the area around the controls clear so the electrical components do not overheat.
- If the cabinet is on casters, lock the brakes when it is parked. Unplug it and secure the cord before moving, push rather than pull, and use two people on ramps and thresholds — tall cabinets are top-heavy.
Installation and first-time setup
Plan the location around the cabinet's 23.7 cu. ft. interior and the swing of its 2 doors. Confirm actual exterior dimensions and door clearances on the manufacturer's specification sheet; they are not part of the certification data.
- Unpack and inspect
Remove all packaging, protective film and shipping ties, including any inside the cabinet. Check the cord, plug, door hinges and glass or gaskets for shipping damage.
- Choose the location
Place the cabinet on a level floor or counter away from air-conditioning diffusers, exterior doors and other cold drafts, which make the heater work harder. Leave the clearances the manual specifies around ventilation openings.
- Level and secure
Adjust the legs or lock the casters so the cabinet sits level and the doors close and seal by themselves.
- Check the electrical supply
Confirm that the receptacle voltage and configuration match the data plate. A dedicated circuit prevents nuisance trips when other equipment shares the line.
- Clean before first use
Wash racks, pan slides and interior surfaces with warm water and mild detergent, rinse, sanitize food-contact surfaces and let them air-dry.
- First heat-up
Run the empty cabinet at its highest setting for the time the manual recommends. A slight odor the first time is normal as manufacturing residues burn off.
- Verify the temperature
Place a calibrated thermometer in the center of the empty cabinet, let the temperature stabilize and compare the reading with the control display. Note any offset.
Using your holding cabinet
Holding temperatures
| Item | Target | Notes |
|---|---|---|
| Food internal temperature | 135 °F (57 °C) or above | The FDA Food Code minimum for hot holding. Check with a calibrated probe thermometer. |
| Cabinet air set point | Typically 150–170 °F (66–77 °C) | Set high enough that the food core stays above 135 °F; adjust per product and manufacturer guidance. |
| Food entering the cabinet | 135 °F or above | Cook to the required internal temperature first; reheat cooled foods to 165 °F (74 °C) within 2 hours before holding. |
| Temperature checks | At least every 2 hours | Leaves time to reheat or discard food that has dropped below 135 °F. |
Loading and organizing
- Preheat the empty cabinet to set temperature before loading — loading a cold cabinet drags food temperatures down.
- Leave space between pans and around the walls so warm air can circulate; do not block the air outlets.
- Cover moist foods (meats, vegetables, starches) to keep them from drying out; leave crisp fried foods uncovered or vented so they stay crisp.
- Label each pan with the time it went in and rotate first in, first out. Set product-specific maximum holding times for quality.
- Keep the doors closed between loads; every opening dumps heat and lengthens recovery.
If your cabinet has a humidity or water-pan system, fill it only with the water type the manual specifies and adjust the humidity setting to the product: higher for moist foods, lower or off for fried and breaded items.
Saving energy
Turn the cabinet off when it is not needed, consolidate product into fewer cabinets during slow periods, and avoid preheating hours before service. At its rated idle input of 290 W, each 12-hour day of holding costs about $0.59 in electricity.
Care and maintenance
| When | What to do |
|---|---|
| After each use | Unplug and let the cabinet cool. Remove racks and pans, wash with warm detergent water, rinse, sanitize food-contact surfaces and air-dry. |
| Daily | Wipe the interior and door gaskets with a damp cloth and mild detergent. Empty, clean and dry any water pan. |
| Weekly | Inspect door gaskets, hinges and latches; replace gaskets that are torn or no longer seal. Check casters and brakes if the cabinet is mobile. |
| Monthly | Check the thermostat against a calibrated thermometer and have it adjusted if it drifts more than a few degrees. Delime the water pan if scale is forming. |
| Quarterly | Inspect the cord and plug for cuts, crushing or heat damage and clean dust from ventilation openings. |
| Annually | Have a qualified technician check the heating element, thermostat, high-limit safety and wiring connections. |
Troubleshooting
Use these checks to keep food safe and the cabinet working. Digital controls may show brand-specific codes — consult the code table in your manufacturer's manual.
| Problem | Possible cause | What to try |
|---|---|---|
| Food is below 135 °F | Set point too low; food loaded below temperature; door opened too often; cabinet overloaded. | Raise the set point; load only food at 135 °F or above; limit door openings; spread pans out. Reheat to 165 °F or discard food that has dropped below 135 °F per your food-safety plan. |
| Cabinet will not heat | Not plugged in or switched off; breaker tripped; high-limit safety tripped; failed element. | Check power and the breaker. If it still does not heat, the high-limit or element needs a technician. |
| Food drying out | Held too long; temperature too high; moist foods uncovered; humidity too low (if equipped). | Shorten holding times; lower the set point while keeping food above 135 °F; cover pans; raise humidity. |
| Fried foods turning soggy | Pans covered; humidity too high; held too long. | Hold fried foods uncovered or vented; reduce or turn off humidity; shorten holding times. |
| Display does not match thermometer | Sensor reads air near the outlet; control out of calibration. | Measure food core temperature; have the control recalibrated if the offset is large. |
| Door does not seal | Worn gasket; hinge or latch out of alignment; cabinet not level. | Replace the gasket; adjust the hinge or latch; re-level the cabinet. |
| Breaker trips | Circuit shared with other loads; damaged cord; shorted element. | Move to a dedicated circuit; stop using the cabinet and call a technician if the cord is damaged or tripping continues. |
Energy use and running costs
The Metro C599L-***- draws 290 W when holding at temperature. Left on for a 12-hour day, 312 days a year, it uses about 1,085 kWh — roughly $185 a year at $0.17 per kWh, or $0.59 per day.
A cabinet of the same volume running right at the ENERGY STAR maximum of 301 W would use about 43 kWh more per year under the same schedule — about $7.32 in extra electricity.
Real consumption rises with door openings, room temperature, the cabinet set point and the temperature of the food loaded. Scale the estimate up if your cabinet stays on longer each day or seven days a week.
Frequently asked questions
What is the capacity of the Metro C599L-***-?
It has 23.7 cubic feet of interior volume, placing it in the full-size class. Pan count depends on the rack or slide configuration, so check the manufacturer's specification sheet for how many full-size sheet or hotel pans it accepts.
Does the Metro C599L-***- have glass or solid doors?
It has 2 solid doors. Solid doors insulate better than glass, which helps keep energy use down.
What temperature should I set my Metro holding cabinet to?
Set the cabinet so the food itself stays at 135 °F (57 °C) or above — typically an air set point around 150–170 °F, depending on the product. Verify food temperatures with a calibrated probe thermometer at least every 2 hours.
How much electricity does the Metro C599L-***- use?
Its rated idle energy rate is 290 W. Over a 12-hour day, 312 days a year, that is about 1,085 kWh, or $185 a year at $0.17/kWh.
How does the Metro C599L-***- compare with the ENERGY STAR limit?
The ENERGY STAR maximum idle rate for its volume is 301 W. At 290 W, this model is 4% below the limit.
Can I reheat food in the Metro C599L-***-?
No. Holding cabinets are designed to keep hot food hot. Reheat cooled food to 165 °F (74 °C) within 2 hours in an oven, steamer or other cooking equipment, then transfer it to the cabinet.
Is the Metro C599L-***- ENERGY STAR certified?
Yes. It appears on the ENERGY STAR list of certified hot food holding cabinets, with a certification date of March 27, 2024.
Sources and disclaimer
Specifications on this page come from the ENERGY STAR certified hot food holding cabinets dataset published by the U.S. Environmental Protection Agency (record certified March 27, 2024), retrieved October 7, 2026.
The setup, operating, maintenance and troubleshooting guidance is written by ManualHarbor's editors for this specific product type and configuration. It is an independent guide — not a reproduction of the manufacturer's manual — and ManualHarbor is not affiliated with Metro. Always follow the safety instructions, installation requirements and warranty terms supplied with your unit, and contact Metro or an authorized service provider for warranty repairs and replacement parts.
Running-cost figures use assumed U.S. average utility prices and are estimates for comparison only. See our editorial methodology for details.
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