K A S H R U T . C O M_©

November 20, 2022 from the London Beth Din with additional information on December 1, 2020 at KLBD Twitter:

Kosher Marmite is now available in kosher shops! Only 600g tub is kosher when 'KLBD Kosher' is inkjetted on the lid.

In addition to the kosher shops, the KLBD Kosher 600g UkMarmite is now available at wholesalers such as @CostcoUK
It is important to check before purchase that each tub has 'KLBD Kosher' on the lid, as old stock in identical tubs and not bearing the KLBD stamp, is NK