Human nose can detect one trillion smells

21st March, 2014 by Lauren Eads

The human nose can detect more than one trillion individual smells, billions more than the commonly held figure of just 10,000.

Neus1A study, published in the journal Science by US scientists, suggests that the human nose is far more capable than originally thought and able to detect billions more smells than the now seemingly meagre 10,000 smells previously assumed by scientists, as reported by The Guardian.

A team of scientists used a collection of 128 different chemicals to create different odours with varying degrees of similarity and tested if subjects could spot the difference, with each odour containing either 10, 20 or 30 different components.

Participants were then asked to pick the odd one out among three vials containing odours with the same number of components but different degrees of similarity.

While performance varied greatly between the 26 participants, scientists found that while no one could tell odours with more than 90% similarity, at least half of the participants could tell odours apart when the degree of overlap was less than 75%.

Dr Andreas Keller of Rockefeller University, lead researcher of the project, said: “Our study replaces that previous number of 10,000 with a much more realistic and [much] higher number and shows the human sense of smell does have a good capacity to discriminate.”

From the results, Keller and his team worked out the number of possibly detected smells by taking the total number of possible odour mixtures possible concluding that the human nose is realistically capable of discriminating between one trillion different odours made up of 30 components.

Despite their figure dwarfing previous estimates, Keller still believes the result is an underestimation of the abilities of the human nose, pointing toward the fact that there are far more odorous molecules than the 128 studied.

Leave a Reply

Your email address will not be published. Required fields are marked *

Subscribe to our newsletters

Job vacancies

FINE WINE SALES ADMINISTRATOR

Davy's Wine Merchants
London, UK

Business Development Manager - On Trade

FINE+RARE
Central London, GB

Regional Sales Manager

Swallow Associates Ltd
Home Based: North-West England, UK

London Account Manager Role (Full Time)

LITTLE BIRD GIN
Home based with UK travel. , GB

Sales Operations Manager

Bibendum PLB
London, UK

Digital Marketing Executive (online content & community manager)

Corney & Barrow Limited
London E1W (near Tower Bridge), UK

Store Manager – Premium Drinks

Amathus Drinks PLC
London, UK

On-Trade Regional Sales Manager

Anthony Byrne Fine Wines
London and the South East, UK

Wine Sales – Northwest England

Gerrard Seel
North West England

Senior On-Trade Sales Manager – English Sparkling Wine Company

COREcruitment
London based with national travel, UK

National Account Manager – RTM – On Trade

COREcruitment
Home based with frequent UK travel

Sales Account Manager - Wine

COREcruitment
London, Devon, Manchester, Liverpool, Farnham, Cambridge, UK

The Global Sparkling Masters 2017

Deadline : 14th June 2017

The Global Syrah Masters 2017

Deadline : 14th June 2017

The Global Malbec Masters 2017

Deadline : 14th June 2017

The Global Beer Masters 2017

Deadline : 1st August 2017

Click to view more

Global Chardonnay Masters 2016

Now in its fourth year, the competition will identify the best Chardonnay from all around the world in every price range.

The Asian Cabernet Sauvignon Masters 2017

the drinks business Hong Kong announces its first year of The Asian Cabernet Sauvignon Masters.

Rioja Masters 2016

Now in its fifth year, the competition will recognise and reward the finest Riojas on the world stage.

Fortified Masters 2016

Now in its third year, The Fortified Masters will reward the best fortified wines on offer.

Click to view more