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Brief Published: 19 Mar 2018

Compact Kitchen-Top Dishwasher


UK water-heating company Heatworks has collaborated with London studio Frog Design to develop a compact countertop dishwasher that operates without the need for plumbing or electric heating elements.

The Tetra dishwasher uses half a gallon of water for one 10-minute cycle (compared to the usual six for the average machine), and is large enough to wash two full place settings including bowls, cups and plates.

To use the machine, water and detergent are added into a separate compartment, where it is heated using patented Ohmic Array Technology. Graphic electrodes and electronic controls 'excite' minerals in the water, causing it to heat up. The dirty water is collected in a lower compartment for draining. The Tetra can also be controlled by an accompanying smartphone app.

According to the brand, the lack of metal heating elements means the water in the machine is purer than in any conventional dishwasher – so the Tetra can therefore be used to sanitise baby products, clean fruit and even cook seafood.

This is the latest example of a space-saving kitchen gadget developed by appliance designers for consumers who lack the room for substantial equipment. For more on this, see our Kitchen of the Future Industry Trend.

See also LED Food-Storage System, Ultrasonic Tea-Making Machine and Self-Heating Ceramic Cup for further recent examples of innovation in the connected-kitchen realm.