Potion Time Stacker
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
I don't know my version or loader
Drinking a potion will add to the duration of an active effect.
Toggle stacking potion durations with /gamerule potiontimestacker:stack_potions (default true)
Toggle stacking splash potion durations with /gamerule potiontimestacker:stack_splash_potions (default false)
Modify maximum effect duration with /gamerule potiontimestacker:max_effect_ticks (default uncapped) (1 second = 20 ticks)
Whitelist or blacklist potions by editing the config file in config/potiontimestacker.toml

Issues
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 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 CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as potiontimestacker-0.1.1-fabric+1.21.11.jar — drop this file into the mods folder
- Download size: 282 KB
- Download link checked 24 Oct 2026 — working
These come from our own check of the pack file, not from the source page.