An Aldi shopper in the know has revealed the clever packaging on products sold by the retailer that allows staff to scan items at breakneck speed.
The savvy customer of the retail giant revealed how workers are able to scan through items so quickly - and how it has "nothing to do with technique".
People visiting the supermarket are often amazed, and sometimes overwhelmed, at how rapidly staff can process products at the till.
And now, one TikToker has explained why she thinks the staff are able to do it so quickly.
The user named Sam, who posts under @glutenfreesam, shared all in a video that went viral explaining why she thinks the checkout workers are so fast, as the Manchester Evening News reports.
She said: "Fun fact: Aldi product packaging is designed to have multiple barcodes so that cashiers can scan things faster, all about that speed baby."
More than 394,000 people have watched the clip on the video sharing platform, while it has received almost 11,000 likes.
Numerous social media users were amazed by the 'fun fact', with one calling it "so smart".
One person said: "I could never figure out how they do it so quick. I'm always trying to match their speed while unloading my cart."
A second said: "Broooo….that’s so smart and I always wondered how they went so effing fast."
A third commented: "Also most types of packaging have barcodes in the same relative areas."
While an Aldi employee added that they loved impressing people with their speed at the till, saying: "This is the most satisfying part of my job. I love when people are amazed by my speed."
