In an exciting development for food lovers across the UK, scientists at Heriot-Watt University in Edinburgh are on a mission to make one of the nation’s favourite snacks, the sausage roll, a healthier choice without sacrificing its beloved flaky texture. With an astonishing 10-15 million sausage rolls flying off shelves each week, the researchers are exploring innovative methods to significantly reduce the saturated fat levels that currently plague this popular treat.
A Snack Under Scrutiny
Sausage rolls, a staple in British bakeries, often come with a hefty nutritional price tag. A single roll can contain over 60% of an adult’s daily recommended intake of saturated fat, contributing to health issues linked to diet. The team at Heriot-Watt is determined to tackle this problem head-on, aiming to enhance the nutritional profile of these pastries while preserving the taste that has won the hearts of many.
Professor Stephen Euston, leading the research at the university’s School of Engineering and Physical Sciences, emphasises the importance of maintaining both flavour and texture. “We want to lower the level of saturated fat while keeping the taste and texture that people love,” he stated. The implications of their findings could stretch far beyond sausage rolls, potentially transforming a range of baked goods that feature laminated pastry, including croissants and Danish pastries.
The Science of Pastry
At the heart of this research is a process known as oleogelation, which aims to replace traditional solid fats with healthier liquid oils, such as sunflower or rapeseed oil. This innovative technique allows the oils to mimic the texture and structural properties of conventional fats, which are crucial for achieving that signature flaky pastry. “Making flaky pastry is surprisingly complicated,” Professor Euston remarked, highlighting the intricate balance of flavour and structure required in pastry-making.
The challenge lies not only in reducing saturated fat but also in ensuring that the new formulation can withstand the rigours of baking. The team’s goal is to create a stable oleogel that can maintain its integrity at higher temperatures, potentially eliminating the need for the extensive chilling typically required in pastry production. This could streamline processes for bakers, making production both easier and more efficient.
Collaborating for Change
The 10-month project is a collaborative effort between Heriot-Watt University and industry partners, including New Food Innovation and AB Mauri. Funded by the UK Research and Innovation Engineering and Physical Sciences Research Council (UKRI EPSRC), the initiative aims to transition from laboratory research to real-world applications. The researchers plan to test their modified pastries with everyday consumers, ensuring that the new formulation not only meets health standards but also satisfies taste buds.
Dr Andrew Bourne, executive director for innovation and partnerships at UKRI EPSRC, expressed enthusiasm for the project’s potential impact. “This project does exactly that,” he said, referring to the goal of translating promising research into practical solutions. “By taking innovative food science out of the lab into the kitchen and testing it with everyday consumers, it has the potential to make the nation’s favourite snacks healthier and genuinely improve our health and wellbeing.”
Looking Beyond Sausage Rolls
While the focus is currently on sausage rolls, the research team is also exploring the applicability of their techniques to other products, including vegan cheese alternatives. This broad approach could lead to a wider range of healthier snack options, revolutionising how we think about the foods we love.
Why it Matters
The initiative to create healthier sausage rolls represents a significant step towards improving public health in the UK. As obesity and diet-related health problems become increasingly prevalent, the ability to enjoy traditional snacks without the guilt of excessive saturated fat could lead to a healthier population. This research not only promises to satisfy cravings but also to contribute positively to the nation’s wellbeing, making it a noteworthy development in the food industry.