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    eco-labels

    Supermarket food could soon carry eco-labels, says study

    The “Inflation Reduction Act” marks a new chapter for America’s climate policy. Pic: PA

    New US act encourages low-carbon purchases

    Economist chart: Sources: UN Comtrade; UN joint coordination centre; Ukrainian

    Nine cargo ships have left Ukraine

    Indigenous communities are raising awareness about how the proposed lithium mine at Peehee Mu'huh (Thacker Pass), NV, will impact their ancestral burial grounds, water resources, and wildlife. Photo by Chanda Callao/ @Peopleofredmountain.

    Free, prior and informed consent required as clean energy threatens Indigenous Peoples

    Smog is so bad in Delhi at times that the government has closed elementary schools. Sajjad Hussain/AFP via Getty Images

    The UN just declared a universal human right to a healthy, sustainable environment

    carbon-neutral eggs

    Hens fed insects to lay carbon-neutral eggs

    Oleksiy Vadatursky was worth $450m (£369m), according to a 2020 estimate by Forbes

    Ukraine grain tycoon killed in Russian shelling

    General Assembly Meets on Peacebuilding and Human Rights. Photo by UN

    UN right to a healthy environment “is ammunition for campaigners”

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    The “Inflation Reduction Act” marks a new chapter for America’s climate policy. Pic: PA

    New US act encourages low-carbon purchases

    Economist chart: Sources: UN Comtrade; UN joint coordination centre; Ukrainian

    Nine cargo ships have left Ukraine

    Smog is so bad in Delhi at times that the government has closed elementary schools. Sajjad Hussain/AFP via Getty Images

    The UN just declared a universal human right to a healthy, sustainable environment

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    Oleksiy Vadatursky was worth $450m (£369m), according to a 2020 estimate by Forbes

    Ukraine grain tycoon killed in Russian shelling

    General Assembly Meets on Peacebuilding and Human Rights. Photo by UN

    UN right to a healthy environment “is ammunition for campaigners”

    Grain exports

    Ukraine war: Grain exports could restart ‘within days’

    Protests in Nairobi as Maasai activists deliver a petition to the Tanzania High Commission, in Kenya, 17 June 2022. EPA-EFE/Daniel Irungu

    In northern Tanzania, the government is trying to evict thousands of Maasai

    Dr Roberto Mukaro Agüeibaná Borrero uses air quotes: “Indigenous people are being kicked out to ‘protect’ the animals and land”

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    New US act encourages low-carbon purchases

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    Nine cargo ships have left Ukraine

    Indigenous communities are raising awareness about how the proposed lithium mine at Peehee Mu'huh (Thacker Pass), NV, will impact their ancestral burial grounds, water resources, and wildlife. Photo by Chanda Callao/ @Peopleofredmountain.

    Free, prior and informed consent required as clean energy threatens Indigenous Peoples

    Smog is so bad in Delhi at times that the government has closed elementary schools. Sajjad Hussain/AFP via Getty Images

    The UN just declared a universal human right to a healthy, sustainable environment

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    Hens fed insects to lay carbon-neutral eggs

    Oleksiy Vadatursky was worth $450m (£369m), according to a 2020 estimate by Forbes

    Ukraine grain tycoon killed in Russian shelling

    General Assembly Meets on Peacebuilding and Human Rights. Photo by UN

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Home Topics Tech

Sage against the machine: can robots taste?

Human tasters still hone the flavour of most manufactured foodstuffs. Now the machines are coming for them

April 10, 2021
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Sage against the machine: can robots taste?
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This feature in The Economist says that in Silicon Valley, a biotech startup called Aromyx is trying to clone and isolate the genes behind each of the 400 olfactory receptors in the human nose in order to visualise on a computer the reaction of each receptor to different aromas.

Aromyx wants to produce a taste fingerprint based on which elements of a flavour trigger different receptors, and how great each receptor’s reaction to that element is.

IBM, an IT firm, is developing an electronic, AI-assisted tongue called Hypertaste, which is already able to determine the chemical similarity between some liquids, an important step towards more complex forms of analysis.

The machines have a lot of catching up to do, however. Flavour is a multidimensional experience dependent on many variables. Even sound can affect how you taste something: a recent study at Oxford University found that people are more likely to pick up bacon flavours in a dish when a recording of a sizzling frying pan is played in the background.

Robot tongues and food fingerprints are still worth pursuing. Elusive though they are, their potential applications are far-reaching. If the multidimensional world of flavour can be captured by machines, then it could ultimately be recreated too. That would revolutionise food production: lettuce leaves could be made to taste like beef burgers, saving the Amazon (and our hearts).

However at Tetley, a British tea maker master taster Sebastian Michaelis’s taste buds are insured for £1 million. He tastes up to 250 different brews each day, looking for subtle differences.

Tetley is unusual in having seven full-time in-house professionals like Michaelis, as well as part-timers and trainees. There are other valuable mouths in the business too. Dreyer’s, an American ice-cream company, insured the taste buds of John Harrison, who invented the cookies-and-cream flavour, for $1 million. Hayleigh Curtis, a chocolate scientist at Cadbury, has a mouth that is so valuable the company’s insurance terms ban her from eating certain chillies in case they damage her taste receptors.

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