There are a few ground rules for success with sorbets, many of which apply to ice cream also.
Make and churn your sorbet as near as possible to when you wish to eat it. Superficially it may appear that frozen puddings of any sort are a useful standby, possible to prepare days in advance. Not so. They deteriorate fairly rapidly, and home-made ice creams are likely to give you stomach trouble if kept too long. Don’t keep ice cream any longer in the freezer than you would keep custard