Wheat flour prices have gone up for the second time since May with millers attributing the rise to delays in offloading grain at Mombasa port. Demurrage charges have seen ships pay up to $300,000 (Sh30 million) a month, which is now being passed on to consumers. The delays, the millers say, have been occasioned by the priority given to white maize at the port. Ship owners pay the charges for delayed loading or unloading. The retail price for a two-kilogramme packet is now Sh133 for Exe brand, up from Sh120 in May. Golden is retailing at Sh129 up from Sh122 with Jimbi selling at Sh135. The prices will continue rising as long as it takes longer to offload the wheat from the ships.