We have a day dedicated to just hanging out in Sorrento. There is a morning Free (for tips) walking tour but also a really interesting sounding late afternoon food and drink walking tour for a fee. They are both about 2 1/2 hours. I think doing both is a lot. But I have found that going on food tours I learn a lot of history besides the great food and drink. Which would you do? Thanks!

Between both, I would certainly take the food and drink tour. But nowdays, there is so much onfo online about food and drink in many countries and especially in Italy. You could read up on a few sites (Katie Parla and Elizabeth Minichelli have excellent sites and books, and Fred Plotkin's gourmet guide to italy is the Bible of Italian food. As is Carla Capalbo's Campania book. The latter two are not recent but have outstanding information.

Do some reading, make a list of foods that interest you, and a list of places known for that particular food. I think you get more attention if you go on your own, at off-times of the day.

I would recommend a driver that will take you to an azienda/caseficio that produces fior dii latte, a subset of mozzarella. Are you willing to do a half day tour with driver? You should get al ot more out of that than a group tour who takes you to who-knows where.....with a rental car, you can go on your own...

For drink, the only one I can think of specific to Sorrento and its Peninsula and the nearby Amalfi coast, is limoncello, and every 2 blocks or so you will find a shop giving free tastings of this drink..

How much knowledge do you have of italy, and the food of the country?

I'd also do a lot of research on where to eat while you are there...often the restaurant owner or staff can offer an excellent ingroduction to the foods of the region if you show interest and are willing to ask questions. But before that again, read up before your trip..ask questions here and on other online food sites....read, read, read.