Fever Tonics are a necessity when curing high fevers and are also utilized in a few quests in Kingdom Come: Deliverance 2. Henry himself doesn’t need them that often, but they can be sold at a good rate, especially if they are prepared with ingredients foraged in the wild. The biggest application of a Fever Tonic is during the For Whom The Bell Tolls quest, where Henry must brew one in order to save Captain Thomas. Brewing the potion is a finicky task, and missing a step will make it not work. For survival or selling them, it’s a skill to learn in the game.
Fever Tonics in Kingdom Come: Deliverance 2
Fever Tonic is mainly used to cure high fevers, though it’s not particularly useful for Henry unless he falls ill. Outside of quests, the best way to make use of it is by selling it for quick Groschen, especially if you gather the herbs yourself. A high-quality tonic can fetch a good price, making it a worthwhile item to brew. If you ever need to make one, head to the Alchemy Station in Troskowitz it’s located in a shed on the apothecary’s property.
How to Craft Fever Tonics
One of the key moments in the For Whom The Bell Tolls quest involves brewing a Fever Tonic to save Captain Thomas of the Trosky guard. During this quest, Henry will come across a book containing the recipe, which he must follow carefully to ensure the potion is effective.
While the necessary herbs, Feverfew, Elderberry Leaves, and Ginger, can be found in the wild, it’s much easier to buy them from apothecaries. If the Troskowitz apothecary lacks supplies, you can visit Aranka at the Nomad Camp or Herbalist Barnaby in the forest clearing north of Trosky Castle.
Brewing the Fever Tonic is straightforward but requires precision. Start with Wine as the base, then add three handfuls of Feverfew and let it boil for two turns of the sandglass. Next, crush one handful of Elderberry Leaves and add it, followed by two handfuls of Ginger.
Finally, distill the potion in the phial and the distillation flask, which is necessary to prepare the tonic of the highest quality. Skipping any step in the process can result in an ineffective brew, and life and death could be the difference for Captain Thomas.
You are not actually supposed to use the bellows to bring it to a boil, it heats up on its own. But if you remember the herbalist saying otherwise, you’re not alone! It’s easy to get confused. That’s probably why you might find yourself stuck on it for a while. If you replay that part, you’ll notice she does mention using the bellows to make it boil. In reality, you only need them when the recipe specifically calls for Vigorous boiling.