Gold and silver, Tulips also where worth more then spices lol.. Theres a story about a merchant who payed the equivalent of 100,000(in todays currency) for a single tulip bulb in goods and property they were that valued. Sugar was also valuable based on its difficulty in making until mass production came along. Sugar was for the rich and noble only.
Fermented honey made mead, potatoes made vodka, rice made saki. Beer(ale) and wine were drunk because it was dangerous to drink plain water, process for alcohol killed all the nasties in the water. But salt was not considered a spice, the list of medieval spices included
PEPPER The most widely used spice, then and now, but not for any
significant medical values
GINGER Next most widely used spice: a digestive, carminative (to
counteract flatulence), stimulant; to counteract anaemia and
liver complaints; to ward off colds.
CINNAMON Third most important spice: also as a stimulant,
carminative, astringent; some reputed qualities as a food
CLOVES Digestive, stimulant, local anaesthetic (e.g., toothaches)
CARDAMOM Digestive; to counteract halitosis (bad breath), headaches,
NUTMEG & MACE Digestive, carminative, stimulant; cure for colic
SAFFRON The world's most expensive herb or spice, then and now. A stimulant; cure for headaches, heart palpitations, fainting fits, dropsy, gastric ulcers
Here are some of the known values 1438-39
Name of the Spice and value in Oxford
pence stirling per lb
It appears salt was 0.5 pence stirling per pint and not considered a spice.
1 shilling was 12 pence, 1 crown was 5 shillings, 1 pound was 20 shillings
The term 'spice' actually covers a host of sins, including dyestuffs and a wide range of drugs and apothecary materials.
The spice trade did not begin until the 12th century (1300's)