Co-op's own-brand mayonnaise has been named the best-tasting supermarket mayonnaise by consumer group Which?, outperforming big brands like Hellmann's and Heinz while costing significantly less. The Co-op On The Side Real Mayonnaise, priced at £1.35 for a 500ml bottle, secured the top spot in a blind taste test of seven products.
Taste Test Results
Which? evaluated seven supermarket own-brand mayonnaises, including Asda, Morrisons, Sainsbury's, Tesco, and Lidl, as well as branded options from Heinz and Hellmann's. The Co-op mayo impressed tasters with its appetising appearance, creamy texture, and tangy flavour. Two-thirds of testers approved of its consistency, and the majority were won over by its sharpness.
According to Which?, “An appetising-looking, creamy mayo with a flavour that most of our tasters enjoyed.” Despite being the priciest supermarket own-brand option, it remains well under half the cost of leading branded products.
Branded Battle
Hellmann's, priced at £2.45 for a 430ml bottle, came in third overall but beat Heinz in the battle of the big brands. Tasters were divided on Hellmann's flavour—some enjoyed it while others found it too subtle. Heinz Seriously Good Mayonnaise, at £2.84 for a 540ml bottle, placed second-to-last, with testers noting it was less popular than Hellmann's.
Other Supermarket Mayos
Sainsbury's mayo, at £1 per 500ml bottle, ranked second overall. More than two-thirds of testers approved of its thickness, and over half appreciated its strength, flavour, and sharpness. Lidl's Batts mayonnaise, at 95p per 500ml bottle, tied with Hellmann's in the testers' estimation, though some found it a bit bland. Asda's own-brand mayo, at 96p per 500ml, was praised for its colour and creaminess but criticised for lacking flavour. Tesco's mayo, at 85p per 450ml bottle, had a pleasing thickness but was deemed overly tangy by some. Morrisons' mayo, at 95p per 500ml, was described as dark and a bit bland, though creamy. M&S Classic Mayo, at £1.40 for 500ml, finished last.
Which? noted that Aldi's own-brand mayo was not tested as the supermarket said its range was undergoing changes, and Waitrose was excluded as its mayonnaise was unavailable at the time of testing.
