Skip to main content

Scotch, lasers, and the multimillion dollar battle against counterfeit booze

A few years ago, a Chinese millionaire visited a Swiss hotel and plopped down $10,000 for a single dram of Scotch whisky. The Scotch in question was from an unopened bottle of 1878 Macallan single malt. It was, at the time, the highest price ever paid for a single serving of whisky. The full bottle was valued at $330,000.

Only there was a problem. The whisky was a fake. After opening it, the hotel sent out a sample to a specialist group that carried out carbon dating analysis. Their conclusion was that there was a 95% probability that the whisky was distilled not in 1878 but, instead, sometime between 1970 and 1972.

Such fakes are, it turns out, surprisingly common. Research carried out in 2018 concluded that 21 out of 55 rare bottles of Scotch acquired from leading auction houses were either fake or not distilled in the year claimed. With so much money on the table (or, rather, in the glass), why wouldn’t such forgeries be a common occurrence?

But researchers from the University of St. Andrews in the U.K. have come up with a way to quickly test whiskies for authenticity. And, like the best tests, it involves lasers.

Laser spectroscopy to the rescue

“Our group, over the last decade, has been developing techniques that use lasers to verify the authenticity of whisky,” Graham Bruce, Senior Research Laboratory Manager in the Optical Manipulation Group at the University of St. Andrews, told Digital Trends. “We have methods that work and that can identify what kind of whisky you have. But to use them, you need to take the whisky out of the bottle because the method also picks up a signal from the glass. That signal can often be stronger than the signal from the content.”

The problem with this approach is that, in order to validate that a rare sealed bottle of whisky is as described on the label, you have to unseal it — thereby destroying a large part of its value. “The real breakthrough is that we’ve [now found a way to] carefully shape our laser beam so that it focuses down inside the bottle,” Bruce continued. “[As a result], we get a strong signal coming from the whisky, while the signal from the glass is essentially zero. It means you can apply this method to a valuable drink that you don’t want to open.”

Vladimir Nenezic/Shutterstock

The laser spectroscopy method pioneered by the team involves shining a laser light into a substance of interest (in this case, Scotch) and then observing the way the light scatters as it interacts with the sample’s molecules. The colors of the scattered light vary according to the chemical makeup of the whisky. Using a multivariate data analysis tool, the team is then able to analyze the scattered light to reveal details like distillery, age, and other features that act as identifiers for comparing the whisky with another of its kind.

Bruce acknowledged that, in the case of particularly rare whiskies, it might be harder to gain the validation data since you need a proven authentic whisky to compare against. (However, analysis could still be useful for revealing details about the age or origin of particular whiskies to weed out fakes.) But going forward, this concept could prove to be very valuable.

“One way that we see this working in the future is that you have the device in distilleries or bottling plants, and you test the liquor at that point,” he said. “Then you store the information, like taking the fingerprint of the liquor. Then, whenever the liquor appears again, you can take its fingerprint and those fingerprints should match [what you have on record.] Or should, at least, evolve in a way that we can predict.”

Not just for the fat cat billionaires

Of course, most of us won’t be dropping $10,000 on a shot of whisky. (At least, not until the economy picks up a bit!) However, Bruce said this could still prove to be a very useful tool.

“There are deaths all around the world from counterfeit alcohol every year,” he said. “In places like Russia, the Czech Republic, the Dominican Republic, all over the world you hear about cases where people are dying because they get something in an original glass bottle from a whisky manufacturer, which [turns out to] not be whisky. Maybe it has methanol or something like that in it, which is poisonous or causes blindness.”

There is, he said, a full spectrum of use-cases, “right from the very cheap whisky being sold to people without significant economic means all the way through to the high-end stuff being bought by the fat cat billionaires.”

A paper describing the work, titled “Through-bottle whisky sensing and classification using Raman spectroscopy in an axicon-based backscattering configuration,” was recently published in the journal Analytical Methods.

Luke Dormehl
I'm a UK-based tech writer covering Cool Tech at Digital Trends. I've also written for Fast Company, Wired, the Guardian…
Skype now supports 911 calls in the U.S.
iPhone with the Skype mobile app loading screen.

Skype has updated its mobile and desktop apps to allow emergency calling in the U.S. for the first time in its 18-year history. Calls to 911 are also possible via Skype’s web-based service, notes for the recently released Skype 8.80 showed.

Emergency calling from Skype could come in handy if you find yourself in a tricky situation without a phone but have a computer close by, or if phone lines are down but you can get online.

Read more
The Interplanetary File System: How you’ll store files in the future
Cloud storage for downloading an isometric. A digital service or application with data transmission. Network computing technologies. Futuristic Server. Digital space. Data storage. Vector illustration.

When you upload a file or send a tweet, your information is stashed in some corporation-owned mega data center in the middle of nowhere. The endless racks of computers in these facilities hold millions of ledgers, and with a flick of a switch, companies can censor or misuse the data.

But what if instead of handing it to, say Amazon or Google, your data is broken down into pieces and scattered across the globe so that no one except you and your key -- not even the government -- can access it?

Read more
The best hurricane trackers for Android and iOS in 2022
Truck caught in gale force winds.

Hurricane season strikes fear into the hearts of those who live in its direct path, as well as distanced loved ones who worry for their safety. If you've ever sat up all night in a state of panic for a family member caught home alone in the middle of a destructive storm, dependent only on intermittent live TV reports for updates, a hurricane tracker app is a must-have tool. There are plenty of hurricane trackers that can help you prepare for these perilous events, monitor their progress while underway, and assist in recovery. We've gathered the best apps for following storms, predicting storm paths, and delivering on-the-ground advice for shelter and emergency services. Most are free to download and are ad-supported. Premium versions remove ads and add additional features.

You may lose power during a storm, so consider purchasing a portable power source,  just in case. We have a few handy suggestions for some of the best portable generators and power stations available. 

Read more