TABLETOP APPLIANCE · ONE COLD LAYER

A crock pot for keeping things cold.

Set the refreshments out without setting them adrift in ice. This shallow circular refrigerator keeps drinks, sandwiches, fruit, and cheese visible, chilled, and within reach.

6–8 in shallow depth1 layer everything visible2 ways battery or wall
Concept product rendering of a shallow round tabletop refrigerator displaying cans, sandwiches, fruit, and cheese under a transparent segmented lid
Illustrative product concept. Dimensions and performance are design targets.

The distance-to-refreshment problem

A gathering creates a small but persistent conflict: the food should remain where the people can see and share it, while perishable food should remain cold. The host usually resolves that conflict by repeatedly returning trays to the kitchen, burying them in ice, or quietly accepting that the display is warming. USDA buffet guidance recommends holding cold food at 40°F or below and replacing small platters rather than leaving them at room temperature.

The ordinary bad gathering: sandwiches and cheese look fine on the table long after anyone remembers when they came out. The host leaves the conversation to manage the refrigerator, while guests cannot tell whether the remaining tray is merely warm or too old.

With the tabletop cooler: one shallow visible layer stays actively chilled at the center of the gathering. Nothing hides behind anything else, segmented lids expose only the chosen slice, and the host can monitor the warmest item instead of running a relay between table and kitchen.

Overhead concept view of the round cooler with one transparent lid segment slid aside and snacks arranged radially in a single layer
Radial zones make each category reachable while most of the cold space stays covered.

Access and lid geometry

The transparent cover divides into overlapping or sliding segments. A guest exposes one portion, takes an item, and closes it without dumping the entire cold-air layer into the room. The mechanism should be removable and easy to clean.

  • Clear enough to choose before opening
  • Usable with one hand
  • No inaccessible food-contact seams
  • Condensation directed away from the table

Use environments

01

Gallery

Quiet, presentable refreshments that remain safe without a bulky catering station.

02

Meeting

Food and drinks stay within the conversation instead of sending people to a break room.

03

Patio

Battery operation gives a finite window of refrigeration where a cord is awkward.

04

Home

A simple way to put out lunch for a group without repeatedly opening the main refrigerator.

Thermal requirements

Cold plate + insulation

A conductive base evens out temperatures beneath the serving layer while high-performance insulation limits heat leaking through the shallow shell.

Quiet heat rejection

The compressor or solid-state choice must be judged by actual efficiency, noise, cost, and room-temperature performance—not novelty. Warm exhaust must never blow across the food.

Smart, not chatty

A restrained display reports setpoint, measured temperature, battery state, and a lid-open warning. The appliance should remain useful without an account, app, or network.

Two power modes

Wall power handles long events. A removable or serviceable battery supports short placement away from outlets. Runtime remains a prototype measurement, not a promise.

Prototype measurements

  1. Cold-hold testLoad real food at serving density, cycle the lid as guests would, and log the warmest item—not just the air.
  2. Condensation testRun it in a warm humid room and find every drip, fogged panel, wet seam, and slippery handle.
  3. Cleaning testRemove the tray and lid segments without tools; verify that spills cannot disappear into the refrigeration cavity.
  4. Reach testPut it in the middle of a real table. Make sure seated people can open, select, and close without turning the device.