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 numerous small steps and even a side quest within a side quest.
Table of Contents
- Speak with Casper and Havel
- Find the Monastery’s Secret Ingredient
Speak with Casper and Havel

Begin “In Vino Veritas” by speaking with Casper Rudolf 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 entrusted to 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. You can attempt a skill check to obtain it directly or offer the marigolds as a gift. Once acquired, read the book from your inventory.
Alternatively, bypass Adleta and proceed directly to Havel at his inn in Kuttenberg City. Enhance your drinking skill and wear an outfit boosting your Charisma to at least 18. During your conversation with Havel, select the following options: Germany, "Let's do it," "That's a very fine gift," Steinberger, and "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 (note: completing this quest isn't mandatory). This allows free movement within the vineyard. Find Jerome on a bench near the main building.

Enter the main building, turn left, and access the storeroom. Use your lockpicking skills to open chests and obtain the Sulphur Wicks needed for Casper. For extra Groschen, collect five seedlings from the garden behind the main building before departing.
If choosing to complete “Under the Straw Hat,” perform tasks like clearing plants and moving sacks. Report to Jerome upon completion for your reward. Otherwise, return to Casper with the wicks (and seedlings, if collected).
This concludes “In Vino Veritas,” allowing you to progress to other quests in Kingdom Come: Deliverance 2, or perhaps pursue badge and dice collecting.