The knife, invented by British baker Warburton, heats to 41.8 degrees Celsius after research found that is the optimum temperature to spread butter.
RASRIA Butter Spreader Knife for Cold Butter above 20℉, Butter Slicer, Butter Curler, Butter Grater, Butter Blade (2 knives): Butter Knives
Second inscription confirming 'end date' of Mayan calendar in 2012 is found in Guatemala
Spread the news! This knife heats your butter for you
Second inscription confirming 'end date' of Mayan calendar in 2012 is found in Guatemala
Self Heating Butter Knife Cool Sh*t You Can Buy - Find Cool Things To Buy
Easy Flavored Butter Recipes
Heated Butter Knife
Kitchen gadgets review: the self-heating butter knife – what a time to be alive!, Food
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