

Stackable Potions Datapack
By VentaCraft
This datapack makes potions stackable up to 16, but splash and lingering potions have a 3-second cooldown. Even potions that were made before will stack. The Datapack is based on the mod "StackablePotions" that is not updated nowadays.
Light Version:
Stackable Potions Datapack: Light Version is a version of stackable potions that is lighter to run but is also a limited version.
The light version is recommended for new world or older computers that can't or have difficulty with the normal version.
The datapacks remove the chest update, the inventory update, and the cursor update.
It still has a brewing stand update and dropped potions updated (because it updates the first 3 slots, the first 3 slots of a chest will also update!)
If you want to update a potion that isn't updated yet, just drop it on the ground.
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.9, 1.21.10, 1.21.11
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
- Downloads as StackablePotionsDatapack:LightVersion_mc1.21.9-26.1.zip
- Download size: 45 KB
- Download link checked 5 Sept 2026 — working
These come from our own check of the pack file, not from the source page.