LONDON — In a warehouse tucked under two railway arches in southeast London is a treasure trove of Greek delicacies, including barrel-aged feta, fresh oregano, Cretan olive oil and cases of nearly a hundred different wines destined for the city’s top restaurants and discerning home cooks. But as Britain phases in Brexit-required customs rules with the European Union, the tempting variety at Maltby & Greek is under threat.The additional forms, customs charges and health safety checks needed for goods to cross Britain’s border are particularly arduous for businesses moving small quantities. That includes specialist food importers buying from small suppliers across the European continent who have helped make London one of the world’s best cities for dining.It has “minimized our ability to d …
