Mr. Coffee Mug Warmer
An electric plate that keeps an already-hot drink warm on your desk, with a power switch and an indicator light.

It is in UMBRAL's editorial catalogue for what it represents more than for what it does: a single-purpose object in a world of multi-use gadgets. Keeping a cup warm while you work or read is a small, everyday gesture, and this warmer handles it with no settings, screens or app. We value it as a reminder that not everything useful needs to be complex.
A single-purpose object, made to keep a cup warm on a desk. It doesn't heat from cold or replace an insulated mug: it is an everyday gesture, not an appliance.
Who is it for?
Ideal for
- Keeping a cup of coffee or tea warm on your desk.
- Seeing through long sessions of work or reading.
- Anyone who prefers a single-purpose object, with no settings.
Also recommended for
Not recommended for
- Anyone expecting to heat a cold drink from scratch.
- Anyone after temperature control or a scheduled shut-off.
What we like most
- A round plate that keeps an already-hot drink warm.
- On/off switch on the body.
- Indicator light for operation.
- Corded: it plugs into the mains.
What to keep in mind
- It is meant to keep a drink warm, not to heat one from cold.
- It works with a switch and an indicator light; we don't attribute any adjustable temperature control to it.
- It needs a nearby mains outlet at the desk.
Key features
Does it heat a cold drink?+
It is meant to keep an already-hot drink warm, not to heat it from cold.
Does it have temperature control?+
In its basic use it works with a power switch and an indicator light; we don't attribute any adjustable temperature control to it.
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