SpreadTHAT! blade uses heat-transfer system to harness body heat
Designers developed a copper alloy tube which instantly transfers heat from the palm to the end of the blade so cold, hard butter can be spread
It uses no electric or batteries, no heating or hot water, and most importantly, needs no heat-up period
The item is not yet on sale but is expected to retail at around $25 (£15)
The sleek device (pictured) has proved a runaway success on the crowdfunding website Kickstarter, smashing its $20,000 target within days. It is expected to retail at £15 when it goes on sale
The SpreadTHAT! blade uses a heat-transfer system that captures a users body heat to melt through hard butter.
The advanced technology means that the device requires no batteries, charging or power of any sort.
Its designers developed the device using a copper alloy tube which instantly transfers heat from the palm of a hand to the end of the blade.
Weighing just 3oz (85g), it uses no electric or batteries, no heating or hot water, and most importantly, requires no heat-up period.
The device has proved a success on crowdfunding website Kickstarter, surpassing its $20,000 (£12,400) target within days.
The smart crockery works on the principle that heat always flows in the direction of lower temperature (graph of temperature changed pictured). The heart of the device features a copper alloy tube similar to that used to cool down computer processors in the semiconductor manufacturing industry
The designers were inspired by the age-old problem, saying: 'We discovered that the current butter spreaders on the market are simply not adequate for spreading butter.'
Writing on their Kickstarter page, the company said: 'We discovered that the current butter spreaders on the market are simply not adequate for spreading butter.
'We wanted to create a spreader that can effectively spread cold butter, and we wanted to do it without using any electricity nor hot water.
'We also demanded a solution that is completely safe to handle by small children, meaning that there cannot be any sharp edges.
'After months of ideation, experiments and prototyping, we finally have our solution.'
SpreadTHAT! works on the principle that heat always flows in the direction of lower temperature.
The heart of the device features a copper alloy tube similar to that used to cool down computer processors in the semiconductor manufacturing industry.
It draws heat from your palm and transfers it onto the butter, making the butter easier to spread.
The Kickstarter campaign, which launched at the start of August, has now raised $33,500 with 18 days left to go.
The team behind the device, based in Seattle, hope to have the product in mass production in time for Christmas.
It is expected to retail at around $25 (£15).
Another new butter knife named ButterUp was recently revealed by different designers (pictured). The gadget aims to solve the problem of refrigerated butter but grating it
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