The best-value warmer here: 100 cups, a hinged lid and a sanitation listing at a low price per cup.
Amazon $245.68The Winco RW-S451 100-Cup Rice Warmer rates 4.3 among rice warmers commercial rice cookers; the Hamilton Beach 37590 90-Cup Rice Cooker rates 3.5 among electric cookers ones. The Winco RW-S451 100-Cup Rice Warmer costs $303.32 less ($245.68 vs $549).
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.

The biggest electric cooker here, for kitchens with a 240 V line and a lot of rice to serve. Smaller kitchens get more for their money from a 60-cup model.
Amazon $549Scores side by side
These two sit in different type classes (rice warmers and electric cookers), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | Winco RW-S451 100-Cup Rice Warmer | Hamilton Beach 37590 90-Cup Rice Cooker |
|---|---|---|
| Overall rating | 4.3/5 | 3.5/5 |
| Value 25% | 79 $2.46 per cooked cup ($245.68, 100 cups) | 39 $6.10 per cooked cup ($549, 90 cups) |
| Capacity 15% | 86 100 cups cooked | 71 90 cups cooked |
| Heating 15% | 100 holds rice up to 12 hours | 39 27.8 W per cooked cup (2,500 W) |
| Listings 20% | 100 listed ETL Sanitation and ETL | 100 listed Conforms to NSF and ETL |
| Features 15% | 60 hinged lid, stainless body, keeps warm 8 hours or more, condensation collector | 80 hinged lid, insulated body, stainless body, keeps warm 8 hours or more, digital controls |
| Warranty 10% | 33 1-year warranty | 0 warranty not published, scored as none |
Specifications
| Winco RW-S451 100-Cup Rice Warmer | Hamilton Beach 37590 90-Cup Rice Cooker | |
|---|---|---|
| Capacity | ||
| Type | Warmer only | Electric cooker |
| Cooked capacity | 100 cups | 90 cups |
| Keep-warm time | 12 hours | 8 hours |
| Power | ||
| Wattage | 103 W | 2,500 W |
| Voltage | 120 V | 240 V |
| Plug or connection | - | NEMA 6-15P |
| Listings | ||
| Sanitation | ETL Sanitation | Conforms to NSF |
| Safety | ETL | ETL |
| Features | ||
| Inner pot | nonstick | nonstick |
| Hinged lid | Yes | Yes |
| Insulated body | - | Yes |
| Stainless body | Yes | Yes |
| Condensation collector | Yes | - |
| Digital controls | - | Yes |
| Build | ||
| Dimensions | 19 x 14.88 x 17.88 | 21.5 x 21.5 x 16.125 |
| Warranty | 1 year | - |