As Donna has already posted, I wouldn't expect any wineries to be open on Christmas day. I only expect restaurants to be open since that's a basic need but most museums and attractions are closed (churches are open only for services as well, not for visits).
Most everything is open on the 24th so plan to do your visit on that day --- whether Liliano or another from the list, make sure to contact them to double check their hours, availability and book if they are requesting that.