Tesco's own brand Passover orange juice has left a sour taste with northern customers.
Manchester shoppers have complained about the quality of the juice in the one litre cartons, which a number of customers returned to stores for refunds.
Although the issue appears to have been a local one, Heather Shaw reported a problem with cartons she purchased in the Hove branch while visiting family.
"The juice had a metallic flavour," she said. "I also bought the little cartons, which were were fine."
A Tesco spokesman denied rumours that a batch of juice cartons had been recalled.
"We have received a small number of complaints regarding the orange juice, which we are investigating with our supplier. We apologise to customers who feel this product has not met our high standards."