Tactile food packaging – Bump Mark labels

Designed for the sight challenged but works for everyone

The Bump Mark is a food freshness checker that reacts to the environment around it, just like fresh food does and updates itself. The label is checked by touch, so when it’s smooth - your food is fresh. If you feel bumps - then it’s time for the bin

In 2013, when Solveiga Pakstaite was working on a design research project on guide dogs for the Blind Association, she questioned how blind people could tell if and when their packed food was fit to eat and began to design an alternative to standard printed expiration dates. In her final year as an industrial design student at Brunel University, Pakstaite came up with a unique new label design that could solve this problem and also curb food wastage. Bump Mark is a tactile gelatin label that mimics the decay process of the food with which it is packaged. As the food deteriorates, the gelatin layer in the label breaks down and reveals a ridge of plastic bumps below. If you run your finger over the label and
the gelatin solution is still smooth, the product is still fresh, but if you can feel the bumps underneath then the product has decayed and is now past the ‘use by’ date.

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University graduate Solveiga Pakstaite has developed a label that changes texture as the food inside the packet goes off

“I was so intrigued by this question that I knew I had to do my final design degree project about it. When I first started thinking about approaching this brief, I knew that the end product couldn’t just improve the way that visually impaired people access expiry information about their food, but it also had to provide an added value for the remainder of the sighted population also. Sadly, business means that unless the majority benefits, it won’t be implemented. “But then when I considered my original question—How do blind people know when their food goes off?—I realized that it’s relevant for all of us—how do any of us know exactly when our food expires? We don’t really. And that’s why we’re wasting so much.”

Within months of completing her degree and the design, Solveiga won the prestigious James Dyson award for design and was named among a new generation of innovators in a list of London’s 1000 most influential people in 2014.

Now, with a patent pending and a preliminary contract signed to commercialize the label with Marks & Spencer, Bump Mark could make a dent in the seven million tons of food and drink wasted in the UK each year. With more than half of the discarded waste still in date, food wastage costs average households in the UK £470 a year, rising to £700 for families with children, according to Love Food Hate Waste.

Bump Mark’s simplicity has broadened the label’s appeal. After a one-day trial with ASDA, with only a short demonstration and no prior marketing, 76% of customers responded positively and said they would prefer Bump Mark to current printed expiration dates.

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How it works: The sticker, which contains gelatine, starts off smooth but over time develops bumps as the gelatine decays. A smooth label means the food is good to eat and a lumpy label shows it should go in the bin

Solveiga believes printed labels are not accurate enough and that food wastage could be significantly reduced with more precise information. Currently, the two main reasons for food wastage are cooking or preparing too much and not using the produce in time. Apparently, the way the dates are put on the packaging are a guideline and not accurate because the way that they are calculated is not regulated. “On the most part, it’s just retailers avoiding unhappy customers by choosing a date way ahead of when that food will actually expire because they can’t guarantee the efficiency of our fridge at home,” adds Solviega.

Since the Bump Mark can be applied at the exact time the food is packaged, the gelatin will break down alongside the food, paralleling its process of decay and providing customers with a binary answer as to whether or not to eat the contents of the pack.

The concentration of the gelatin will vary depending on the food to dictate how long the solution will last. A low concentration of gelatin will be used for produce such as raw chicken, which will decay in a few days, whereas a highly concentrated solution will be used for longer lasting foods such as cheese.

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