We are warned that when handling a non-Mevushal Kosher wine that it must only be handled by shabbat observant Jews.
My question relates to the halachic definition of "handling" and what that entails.
Does this prohibition involve the gifting of the Kosher wine or is the prohibition of "handling" only related to the opening and pouring of the wine?
Example Scenario
A Jewish host is hosting a non-observant Jew in their home as part of a Kiruv program. The non-observant Jew brings the host family a gift of wine as a sign of thanks and the wine happens to be non-Mevushal kosher. The wine is unopened and was simply purchased and gifted to the host family to thank them for sharing their shabbat with them.
Does "handling" cover physically touching the bottle or does the handling definition only relate to the opening and pouring of the wine?
Would the family be unable to use this wine or would it be acceptable as long as the wine was not tampered with and remained sealed when gifted?
The Jew in this scenario has not meddled in idol worship. They simply weren't raised in an observant household and never correctly observed shabbat. If they handled the bottle in transporting it, does that make it problematic to use?