A Japanese company has developed a fire alarm that alerts hearing-impaired people by emitting the odour of WASABI!

The pungent foodstuff was chosen from a host of different scents during tests to determine which odour would cause people to wake the fastest from their slumber. It was found that wasabi – Japanese horseradish – acted quickest with almost all the test subjects waking within 2-and-a-half minutes of first exposure.

Wasabi contains a substance called allyl isothiocyanate – the same substance as found in mustard – and further tests were required to find the appropriate amount of odour release required without causing people’s eyes to water – which could hinder peoples’ attempts to escape a fire.

The alarm, which measures 21cm by 8cm and weighs just half-a- kilogram was developed by the Japanese fire extinguisher company Air Water Safety Services and has already been sold to residential homes for the elderly as well as hotels says the Daily Telegraph online.

It wouldn’t work for this writer, however, as the scent of wasabi is likely to lead to the kitchen rather than any escape point!