For moving perishable foods teleport object is decent. A 7th level spell cast by a 13th level caster costs 910 gp, but has a range of 1300 miles (which is about the straight line distance between London, England and Casablanca, Morocco), and can carry 650 pounds. So as long as whatever you're shipping has a value of better the 1.5 gp/lb. you're making a profit. Coffee runs 50 gp/lb, pineapples cost 150 gp/lb, and nutmeg is 480 gp/lb. And out of season fresh fruit could easily cost upwards of 5 times the price of dried fruit. And just think how much you could charge for fresh ice.
While I think there is a spell that allows you to control the temperature, even without magic hot houses have existed for a long time.
But as in real history, most exotic items will remain outside the price range of commoners. Although, I can easily see specialty restaurants for exotic foods/drinks, that cater to the rich and powerful (read Rise of a Merchant Prince for a great example of this).