How much did a pound of pepper cost in 1350?
The record: 1s 5d, 1351–60.
About $210 in today's gold
9 days of a farm labourer's pay.
About 1s before the plague, 2s 6d in 1350 itself, then settling near 1s 5d (Rogers). Source
Who could buy it
The lowest paid on each ladder of 1350 whose pay was enough:
On a day's pay
On a week's pay
On a month's pay
In other words, a real purchase: weeks of work for a farm labourer.