Windrose Guide: How to Get Tannin
Unlock potion brewing and Tanned Leather by mastering Tannin crafting in the Foothills biome.
Quick Answer: To get Tannin in Windrose, you need to harvest Tree Bark from dark, twisted Divi Divi trees in the Foothills biome. Take 2x Tree Bark and 1x Clay Bottle to your base’s Alchemy Table to craft 1x Tannin.
Tannin seems like a boring alchemy ingredient, but it actually gatekeeps your entire armor progression. Without it, you cannot craft Tanned Leather or brew essential potions. You will not find it dropping from enemies or sitting in random chests. You have to craft it yourself, which means taking a trip into the second biome and setting up a specific workstation back at your base.
Where to Find Tree Bark
The main ingredient for Tannin is Tree Bark, which exclusively drops from Divi Divi trees. You have to push into the Foothills to find them. They are incredibly easy to spot once you know the visual cues: look for dark wood and distinctly twisted trunks.
Divi Divi trees usually spawn in clusters, which is perfect for farming. You can map out a quick loop between dense groups to fill your inventory fast. Just make sure to wipe out any nearby enemies first so you do not get interrupted mid-swing and waste time resetting your gathering animation.
How to Build the Alchemy Table
You cannot process tree bark at a standard workbench. You need an Alchemy Table placed at your camp. Building it is cheap and unlocks a massive portion of the game’s crafting tree.
| Required Material | Quantity |
| Wood | 5 |
| Clay Pot | 2 |
Once your Alchemy Table is built, your base really starts feeling like a proper pirate hub. If you are already decking out your camp and pushing your progression, you might also want to customize your fleet. Take a quick detour and check out our Windrose Guide: How to Rename Your Ship to give your newly upgraded vessel an official title.
How to Craft Tannin
With your station built and your bark gathered, it is time to start brewing. Here is the exact breakdown of how to craft Tannin and what it actually does for your progression.
| Crafting Detail | Information |
| Recipe Inputs | 2x Tree Bark, 1x Clay Bottle |
| Output | 1x Tannin |
| Primary Uses | Potion bottles, reagents, Tanned Leather |
The actual crafting loop is incredibly straightforward. Follow these steps to process your materials:
- Harvest Tree Bark from Divi Divi trees in the Foothills.
- Craft a stockpile of Clay Bottles.
- Open the Alchemy Table menu.
- Select the Tannin recipe on the left side of the screen.
- Queue up as many crafts as your inventory allows.
Pro Tip: Clay Bottles are required as a container for the Tannin. Do not show up to the Alchemy Table with a massive stack of bark and zero bottles.
Best Farming Strategies for Tannin
Never craft just one Tannin. You want to produce this stuff in bulk. Efficiency here comes down to two simple habits: route planning and material pre-staging.
Find the densest Divi Divi clusters in the Foothills and run a systematic loop between them. Wandering aimlessly ruins your gathering efficiency.
The biggest bottleneck players hit is rarely a lack of tree bark. It is usually showing up to the base without enough containers. Fix this friction by pre-staging your materials. Batch-craft a massive stack of Clay Bottles and leave them in a chest near your Alchemy Table. When you get back from a run with 50 pieces of Tree Bark, you can instantly queue up 25 Tannins without having to run around your base gathering clay. Treat your Tannin supply like a permanent crafting buffer, and you will never get stuck waiting on Tanned Leather for your next armor upgrade.
Ready to push your progression even further? For more survival crafting breakdowns, weapon tier lists, and strategies, check out our full collection of guides right here.
