Commercial Rice Cookers

Commercial Rice Cookers, Rice Warmers and Sushi Rice Containers

Pick rice equipment around your busiest service window: how much rice you need before the next batch is ready, what power or gas you have, and whether you need to cook, hold or both. This collection covers Thunder Group electric rice cookers, Rinnai natural gas and propane rice cookers, Thunder Group electric rice warmers and insulated sushi rice containers.

Compare Commercial Rice Cookers

All six cookers cook rice, then hold it. The big decisions are NSF listing, inner pot type, batch size and whether you run on electric, natural gas or propane.

Capacity figures are the manufacturer's. Cups, bowls and servings are not interchangeable, so measure one batch of your own recipe before planning portions.

Rice Warmers Hold Cooked Rice; They Do Not Cook It

A warmer frees your cooker for the next batch while staff serve from the warmer. All four Thunder Group warmers are NSF and UL listed, draw 100 watts, hold rice up to 162°F for as long as 12 hours and sit on the same 15-1/2" round footprint. Choose by capacity, height and finish.

Insulated Sushi Rice Containers

These NSF listed containers keep seasoned sushi rice moist without electricity. They have stainless covers and linings and come in 40 or 60 cups, in wood grain or mirror polished stainless. They do not heat rice.

Which Model Fits Your Kitchen?

• Need NSF in a small space: SEJ3201, 30 cups on a 14-5/8" square footprint at 1,460 watts.
• Lowest cost where NSF isn't required: SEJ50000 with an aluminum pot, or SEJ50000T with a non-stick pot.
• A few more cups on electric: SEJ60000, 33 cups, NSF listed, 18-1/8" wide.
• High volume: RER55ASN on natural gas or RER55ASL on propane, 100 bowls in 22 minutes. Pair with a gas hose sized for the 1/2" NPT connection.
• Holding for a long service: a 30 cup warmer (SEJ18000 wood grain, SEJ20000 stainless) or 50 cup warmer (SEJ21000 wood grain, SEJ22000 stainless). The 50 cup models need 15-1/4" of height.
• Sushi bar: 40 cup SEJ71000 or SEJ72000, or 60 cup SEJ73000 or SEJ74000.

How to Size a Restaurant Rice Cooker

Start with rice demand during your busiest window before the next batch can be ready. Daily totals can hide a lunch rush that uses most of the day's rice in an hour. Track portions, portion size and each rice recipe sold in that window.

Use consistent units. For example, 120 portions at 5 oz. of cooked rice is 600 oz., or 37.5 lb, of cooked rice. That's a finished target. Measure your recipe's yield to find the raw load and number of batches you need.

One Large Cooker or Two Smaller Ones?

One larger cooker suits a concentrated batch of one rice recipe. Two smaller cookers suit demand that comes in waves, separate rice varieties, or a backup if one unit goes down. Compare power or gas, counter space, cleaning labor and how you'll hold each batch.

For buffets and catering, plan cooking output and holding capacity separately. For a rice bowl line, watch how fast the serving pan empties during the rush. For sushi, plan the seasoning and holding steps separately from cooking.

Electric vs. Natural Gas and Propane Rice Cookers

Electric cookers suit a countertop station with the right outlet. The SEJ50000, SEJ50000T and SEJ60000 draw 1,780 watts, close to a full 15 amp circuit at 120V. The SEJ3201 draws 1,460 watts. Don't assume two cookers can share a circuit because the outlets are nearby.

The Rinnai gas cookers make 55 cups per batch. The RER55ASN runs on natural gas at 35,000 BTU/h and the RER55ASL on propane at 34,000 BTU/h. Both have a 1/2" NPT female connection. Order the version that matches your gas, since neither should be run on the other fuel. Have a qualified installer confirm gas pressure, clearances and ventilation.

Gas cookers simmer after cooking, which is not the same as an electric keep-warm mode. Plan how rice will be held after each batch, and whether you need a dedicated warmer.

Build a Repeatable Rice Routine

Write down the rice variety, raw measure, rinsing or soaking, water, batch size and finishing steps. Train staff to use the same measuring cup every time. White, brown, jasmine, basmati and seasoned rice don't all use the same water or cook time, so test each recipe in your cooker.

1. Forecast the next service window and pick a tested batch size within the model's limits.
2. Measure ingredients using the written recipe.
3. Seat the inner pot correctly and clear the work area.
4. Run the cooking and resting cycle without improvised control changes.
5. Move rice to holding or service, label the batch and check the temperature.
6. Record yield and quality, and adjust the next batch if needed.

Place the cooker where staff can load it, open the lid, serve and lift the pot safely. Allow for lid swing and steam, not just the closed footprint.

Keep-Warm Features and Safe Rice Holding

A warming light shows the machine's mode, not the food's temperature. The FDA Food Code sets 135°F or above for hot holding TCS food, subject to the code adopted locally. Check with a food thermometer.

Set a quality window as well as a safety procedure. Rice can be safe and still past your preferred texture.

If rice will be cooled for later use, the FDA Food Code's standard limits are 135°F to 70°F within 2 hours and to 41°F or below within 6 hours total. Rice that was cooked and cooled must be reheated to 165°F for 15 seconds within 2 hours before hot holding. A holding-only warmer is not a reheating appliance.

Sushi Rice Needs Its Own Approved Procedure

Adding vinegar doesn't by itself allow holding sushi rice without temperature control. Under the FDA Food Code, using vinegar to make rice non-TCS requires a variance and an approved HACCP plan. Ask your local health department about the process for your restaurant.

For other holding equipment, see commercial food warmers and holding equipment.

Cleaning, Pot Care and Preventive Checks

Turn the unit off and let it cool before cleaning. Remove and wash only the parts the manual lists as removable. Never immerse the powered body or gas controls.

Use soft utensils and non-abrasive pads on non-stick pots, including the SEJ50000T, SEJ3201, SEJ60000 and the warmers. Replace a pot with damaged coating or dents. Use the correct replacement pot for the model: SEJ64020 for the SEJ3201, SEJ004A for 30 cup warmers and SEJ004 for 50 cup warmers.

Thunder Group marks the SEJ50000T and SEJ60000 as not dishwasher safe. Check the manual before machine washing any part.

Check cords, handles and lids as part of routine maintenance. Stop using damaged equipment, and never bypass a thermostat or gas safety device.

Troubleshoot Inconsistent Rice Before Changing Equipment

Repeated breaker trips, gas ignition problems or overheating need a qualified technician.

Commercial Rice Cooker FAQs

Which commercial rice cooker is NSF listed?

The SEJ3201 (30 cups), SEJ60000 (33 cups) and both Rinnai 55 cup gas cookers are NSF listed. The value-priced SEJ50000 and SEJ50000T are not NSF listed and carry no Thunder Group warranty.

What is the biggest rice cooker in this collection?

The Rinnai RER55ASN (natural gas) and RER55ASL (propane) make 55 cups, or 100 bowls, in 22 minutes. The largest electric model is the 33 cup SEJ60000.

Can a rice warmer cook rice?

No. The SEJ18000, SEJ20000, SEJ21000 and SEJ22000 only hold cooked rice warm, up to 162°F for as long as 12 hours. Cook the rice first in a cooker.

Do sushi rice containers keep rice hot?

No. The SEJ71000 through SEJ74000 are insulated, non-electric containers that keep sushi rice moist. They do not heat it. Follow your local health department's approved process for holding sushi rice.

Should I choose electric or gas?

Electric cookers plug into a 110-120V outlet and top out at 33 cups. Choose a Rinnai gas cooker for 55 cup batches if you have a gas line and a hood, and order the RER55ASN for natural gas or the RER55ASL for propane.

How many servings will one batch make?

Divide your measured cooked yield by your portion size. Cups, bowls and servings in listings are not the same measurement, so test your own recipe before promising a fixed number of meals.

Is a keep-warm mode enough for food safety?

No. Check the rice with a thermometer. The FDA Food Code's hot-holding minimum for TCS food is 135°F, subject to your local code. A warming light is not a temperature record.

Can I run two electric rice cookers on one circuit?

Usually not. A 1,780 watt cooker uses most of a standard 15 amp, 120V circuit. Have an electrician confirm the load before placing cookers side by side.