A resection is not necessary. The place is casual, unique, and a very fun experience. And he has good wines to taste. I don't know if he is open in December; I would assume so.

Yuou just can come in an taste. There is no special time.

Check the website, it’s well worth the visit.

I agree with Slaventi's recommendation - contact Stefano and set up a time to taste wines with him. He is such a delight! And he may event throw in some dessert wine or olive oil. He doesn't charge for the tasting; he's likely hoping visitors will instead purchase wine. He handles shipping to the states/Canada for you (~$100/case) or you can take a couple bottles with you to enjoy at your hotel. Walk up the street after your tasting for a snack/lunch and beautiful view il Vinnaio.

It's not necessary, but it wouldn't hurt. His shop is small and cozy. If he has a group already inside when you arrive, you may have to wait an hour or two. He opens at 11:00, which might be a good time if you don't want to book in advance.

Não precisa de reserva. A degustação vai acontecendo em meio a uma conversa informal onde ele vai explicando sobre diversos assuntos. Pode durar a tarde toda e se prepare para experimentar mais de 30 roliços especiais e diferentes.

Surprisingly there wasn't a tasting fee. However, once you try the wines you will definitely want to buy some! He is extremely reasonable with his prices and this is the perfect place to purchase the most amazing Italian wine.