Proctor Silex 37580 Rice Warmer vs Zojirushi THA-603S Rice Warmer

Last updated: November 9, 2026

The Proctor Silex 37580 Rice Warmer is the better commercial rice cooker overall, rated 4.0 to 3.1. The Proctor Silex 37580 Rice Warmer leads on listings, features and value. The Zojirushi THA-603S Rice Warmer wins on capacity. The Proctor Silex 37580 Rice Warmer costs $164.50 less ($149.99 vs $314.49).

Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.

Proctor Silex 37580 Rice Warmer vs Zojirushi THA-603S Rice Warmer

Which should you buy?

Scores side by side

Each factor is scored 0-100 against the same fixed reference points for every rice warmers commercial rice cooker; a clear win is highlighted. How we rank explains each one.

Factor weightProctor Silex 37580 Rice WarmerZojirushi THA-603S Rice Warmer
Overall rating4.0/53.1/5
Value 25%78 $2.50 per cooked cup ($149.99, 60 cups)50 $4.77 per cooked cup ($314.49, 66 cups)
Capacity 15%29 60 cups cooked37 66 cups cooked
Heating 15%100 holds rice up to 12 hours100 holds rice up to 12 hours
Listings 20%100 listed ETL Sanitation and cETLus40 listed ETL, no sanitation listing published
Features 15%80 hinged lid, insulated body, stainless body, keeps warm 8 hours or more, condensation collector30 stainless body, keeps warm 8 hours or more
Warranty 10%0 warranty not published, scored as none0 6-month warranty

Specifications

Proctor Silex 37580 Rice WarmerZojirushi THA-603S Rice Warmer
Capacity
TypeWarmer onlyWarmer only
Cooked capacity60 cups66 cups
Pot volume-6 L
Keep-warm time12 hours12 hours
Power
Wattage103 W77 W
Voltage120 V120 V
Listings
SanitationETL Sanitation-
SafetycETLusETL
Features
Inner potnonsticknonstick
Hinged lidYes-
Insulated bodyYes-
Stainless bodyYesYes
Condensation collectorYes-
Build
Weight15.9 lb-
Dimensions-18 1/8 x 15 x 12 5/8
Warranty-6 months

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