Some side quests are more enjoyable than others, while some prove more confusing or frustrating. Completing "In Vino Veritas" in Kingdom Come: Deliverance 2 involves several steps and even a nested side quest. Let's break it down.
Speak with Casper and Havel
Begin "In Vino Veritas" by speaking with Casper Rudolf, located at his drink cart on the east side of Kuttenberg City (easily found by proceeding straight from the east gate). He seeks the secret to the monks' superior wine. Exhaust all dialogue options to learn about Havel and the book he left with Adleta. This informs your approach to impressing Havel.
To obtain the book from Adleta, visit her garden in the southeast corner of Kuttenberg's inner walls during the morning or afternoon. Gather five marigolds beforehand. Either find her before her brother, Hugo, arrives, or speak with Hugo to gain permission to talk to her. Remain kind to Adleta, explaining your need for the book for Casper. You can attempt a skill check to obtain it, or gift her the marigolds. Once acquired, read the book from your inventory. Note: Obtaining the book is optional.
Alternatively, proceed directly to Havel at his inn in Kuttenberg. Ensure your Charisma is at least 18 (adjust your attire accordingly). Engage Havel, selecting the following dialogue options: Germany, Let's do it, That's a very fine gift, Steinberger, It's missing ginger. This impresses Havel, revealing the monastery's secret ingredient. Return this information to Casper.
Find the Monastery’s Secret Ingredient
Travel to the vineyard north of Kuttenberg. Initiate the "Under the Straw Hat" side quest by speaking with the recruiter (completing this quest is optional, but starting it allows free movement within the vineyard). Locate Jerome on a bench near the main building.
Enter the main building, turn left, and access the storeroom. Use lockpicking to open chests and obtain Sulphur Wicks, required for Casper. For extra Groschen, gather five seedlings from the garden behind the main building before leaving.
If choosing to complete "Under the Straw Hat," perform tasks such as removing plants and moving sacks. Report to Jerome upon completion for your reward. Return to Casper with the Sulphur Wicks (and seedlings, if collected).
This concludes "In Vino Veritas," allowing you to proceed with other quests in Kingdom Come: Deliverance 2, or perhaps pursue badge and dice collecting.
