Liv Newman, a 28-year-old food enthusiast, embarked on an eight-month quest to identify the best salt and vinegar crisps from a selection of 40 brands, spending approximately £80 on her taste test. The top honor went to Marks & Spencer's Salt & Double Vinegar Extreme Ridge Cut Crisps, praised for their intense vinegar flavor that builds with each bite. Following closely in second place were Golden Wonder's Fully Flavoured Salt and Vinegar Crisps, which Newman noted as a fan favorite from the start. The third spot was claimed by Exceptional By Asda's Hand Cooked Sea Salt and Chardonnay Wine Vinegar Crisps. Newman also highlighted the bottom-ranked crisps, including Jack's Salt & Vinegar Twirls, which failed to deliver on flavor. Throughout her testing, she emphasized the importance of the 'tingle factor' in crisps, noting that some thicker varieties dulled the flavor experience. After her extensive tasting, she shared tips on enhancing crisp flavor, including freezing them and opening packets upside down to access seasoning. Despite mixed opinions on the rankings, Newman feels she has done her research justice and is ready to explore different flavors.