Preservative
Preservative is an alchemy result with three green runes. It is the base of the embalming fluids for corpses, made at the Formulation Bench: the Solution for Corpses comes with Embalming I, the Solution for Zombies with Reanimation Liquid, and the two Injections, for Corpses and for Zombies, with Embalming III. Until you have the bench and one of these, the Preservative is worth only the mix itself: 3 green tech points and progress toward the Alchemist inspiration.
At the Laboratory I it takes two ingredients: Flour or an Onion (two green) with one Water, Leaf or Berry (one green).
How to obtain
Mix
Runes 3 ·Crafted at Laboratory I
| Ingredient |
|---|
 Alchemic Powder  |
 Pumpkin ★ |
 Fragrance |
70 ingredient combinations reach these runes — see how mixing works →
Traders
| Name | Tier | Stock |
|---|---|---|
| Alchemist · town building — build it first | All tiers | 10 |
Used for
Ingredient for
| Workbench | Ingredients | Outputs | Mastery | Duration | Tech points |
|---|---|---|---|---|---|
| Formulation Bench |  Alcohol ×1  Preservative ×1 |  Solution for Zombies ★–★★★ ×1 |  6 | 8 | 11 |
| Formulation Bench | Alcohol ×1 Preservative ×1  Comet's Tail ×1 |  Injection for Zombies ★–★★★ ×1 | 8 | 12 | 12 |
| Formulation Bench |  Melted Fat ×1 Preservative ×1 |  Solution for Corpses ★–★★★ ×1 | 6 | 8 | 11 |
| Formulation Bench | Melted Fat ×1 Preservative ×1 Comet's Tail ×1 |  Injection for Corpses ★–★★★ ×1 | 8 | 12 | 12 |
Study
| Study requires: | Tech points | Duration |
|---|---|---|
| Science ×10 | 202010 | 6 ( Researcher −2 ) |
Each item is studied once, on the Study Table. Studying does not use the item up. With the Scientist perk, a 30% chance of a Story.