It seems that the worst that Brexit will bring is 10p on a jar of Marmite, that wouldn’t be so bad except the evidence is that it’s already been priced in; there was fear of a UK Marmite Shortage shortly after the vote. Tesco’s seem to have mitigated the risk now, but it’s obviously very serious problem. It looks like 10p might a bit optimistic.
10p on a jar of Marmite