Cosori Coffee Mug Warmer
- 77 to 194 degrees F, 1 degree steps
- 24 watts on 110 volts
- 304 stainless steel plate, LCD touch display
- Auto shut-off with adapter and manual
- 2-year warranty with customer support
Last refreshed Jun 15, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A slim desk warmer with precise temperature control and an LCD touch display, for keeping a mug at drinking temperature. It is a beverage warmer, not a hot plate, so it will not heat cold liquid fast.
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ASIN: B089SGRVBJModel: CO294-CWCategory: Beverage Warmers
Overview
A PI heating film under a stainless steel plate warms the base of a cup placed on top, with temperature set from a touch display. The cord connects through an adapter, and the unit shuts itself off automatically.
Desk workers who let coffee go cold get a low-power way to hold it warm. The maker says cups need good contact with the surface, so flat-bottom mugs work best.
Who it's for
Remote workers, students and tea drinkers sipping slowly get steady warmth from it. People after a hot plate for cooking, or for round or uneven cup bottoms, should look elsewhere.
Pros and cons
- Precise temperature steps
- Digital LCD touch display
- Stainless steel plate
- Needs flat cup contact
- Low power, slow to heat
- Not a cooking surface
Performance notes
Heat passes from the plate into the cup base, so a flat-bottom mug with full contact warms best. Because wattage is low, the warmer holds temperature rather than raising it fast, and the chosen set point decides the final cup temperature.
Specifications
| Brand | Cosori |
|---|---|
| Model | CO294-CW |
| Dimensions & fit | |
| Item weight | 8 ounces |
| Item Dimensions L x W x H | 5.39 x 4.29 x 0.71 inches |
| Capacity & performance | |
| Maximum Temperature | 194 degrees Fahrenheit |
| Wattage | 24 watts |
| Temperature settings | 77 to 194 degrees Fahrenheit |
| Power & efficiency | |
| Voltage | 110 volts |
| Construction & materials | |
| Material Type | Stainless Steel |
| Included components | |
| Included Components | Adapter, coffee warmer, user manual |
| Warranty & support | |
| Manufacturer Warranty Description | Up to 2 years with customer support |
| Other details | |
| Auto shut off | Yes |
Closest rivals on specs
VOBAGA V037 Coffee Mug Warmer Set with 15 oz Mug- Wattage 24 vs 20 watts (+20%)
Cafzed Electric Coffee Mug Warmer with Timer- Wattage 24 vs 30 watts (-20%)
Salton Mug Warmer- Wattage 24 vs 21.77 watts (+10%)
Frequently asked questions
How big is the COSORI CO294-CW warmer?
The specs list 5.39 inches long, 4.29 inches wide and 0.71 inches high, at 8 ounces.
Can the COSORI CO294-CW be used for cooking?
No. The description says it is a beverage warmer, not a hot plate, and is not made for cooking.
What is included with the COSORI CO294-CW?
The specs list one adapter, one coffee warmer and one user manual.