One of Britain’s biggest kosher food producers has apologised after it received complaints about the quality of its matzah.

Dozens of complaints on a Pesach Facebook recipes group said that Rakusen’s kosher for Pesach matzah was thin, brittle and brown and not up to the company’s usual standard.

In response to the complaints, the Leeds-based firm said it was “shocked and saddened to discover some of our kosher for Passover matzos have fallen below our usual high standards.

“This has understandably caused a lot of frustration for all of those that were looking forward to enjoying Rakusen’s matzo this Passover.

“We offer out sincerest apologies to all that have been affected and want to reassure everyone that we are working diligently to rectify the situation.”

Rakusen’s said it had worked hard to ensure the product was of the highest quality, “so to discover that some of our matzos were far below out usual standard has been disappointing”.

It said it was unsure as to what caused the defects in the matzah production.

“We are undertaking a full investigation to discover the reasons why this unacceptable incident has occurred,” the company said.

Rakusen’s urged customers who “had the misfortune of finding their matzos to be of an unacceptable standard, to please email Sales@rakusens.co.uk”.