The Potion of Oozing is one of the “negative” potions from the 1.21 Tricky Trials update, and it doubles as the easiest slime farm in the game. Throw it at a mob and, when that mob dies, it bursts into slimes you can harvest for slime balls, no slime chunk hunting required. This guide covers the recipe, the splash and lingering versions, and how to use it to farm slime.
Everything here is confirmed in the current 2026 version of Minecraft (26.2).
Quick answer: brew an Awkward Potion (water bottle + nether wart), then add a slime block to make a Potion of Oozing (Oozing, 3:00). Add gunpowder to throw it as a splash potion.
Potion of Oozing at a Glance
| Detail | Value |
|---|---|
| Base recipe | Awkward Potion + slime block |
| Effect | Oozing, 3:00 |
| On death | The mob spawns 2 slimes |
| Splash / lingering | Gunpowder / dragon’s breath |
How to Brew It
Fuel your brewing stand with blaze powder, then:
- Make an Awkward Potion. Put water bottles in the bottom slots and a nether wart in the top ingredient slot.
- Add a slime block. Put a slime block (nine slime balls) in the top slot. The Awkward Potion becomes a Potion of Oozing with the Oozing effect for 3 minutes.
That is the whole recipe, and it is the same on Java and Bedrock.
Splash and Lingering Versions
You use this on other mobs, not yourself, so turn it into a thrown potion:
- Splash Potion (gunpowder): add gunpowder to make a Splash Potion of Oozing (still 3:00). Throw it at a group of mobs.
- Lingering Potion (dragon’s breath): add dragon’s breath to a splash potion to leave an oozing cloud (0:45). Great for hitting a whole crowd at once.
It Cannot Be Upgraded
Like the other new negative potions, the Potion of Oozing cannot be extended or strengthened. Adding Redstone does nothing and Glowstone does nothing, there is no longer duration and no level II. What you brew is what you get, so save those ingredients for other potions.
How to Farm Slime With It
Here is the fun part. When a mob with the Oozing effect dies, it spawns 2 slimes. Kill those slimes and they drop slime balls (and split into smaller slimes you can also kill), giving you a renewable slime source without needing a slime chunk or swamp.
The best method is a lingering potion thrown into a crowd of mobs, then kill them all. One potion on a big group can net you dozens of slime balls, especially with a Sweeping Edge sword. It works on almost any mob (passive or hostile) except boss mobs, so a pen of cows, chickens, or gathered zombies all work. For the full brewing tree, see our best Minecraft potions guide.
Frequently Asked Questions
Brew an Awkward Potion (water bottle plus nether wart), then add a slime block. That gives a Potion of Oozing with the Oozing effect for 3 minutes.
It applies the Oozing effect. When the affected mob dies, it spawns 2 slimes, which you can kill for slime balls. It is mainly used as a splash potion for farming slime.
No. This potion cannot be extended with Redstone or amplified with Glowstone. The duration is fixed at 3 minutes (45 seconds as a lingering potion).
Add gunpowder to make a splash potion and throw it at mobs, or add dragon’s breath for a lingering cloud. Then kill the affected mobs to spawn slimes.
Yes. It is one of the easiest slime sources because it works anywhere, no slime chunk needed. A lingering potion on a crowd of mobs plus a Sweeping Edge sword yields the most slime balls.
The 1.21 Tricky Trials update, alongside the other new negative potions like Infestation, Weaving, and Wind Charging.
The Potion of Oozing is a clever twist on slime farming: brew Awkward plus a slime block, add gunpowder to throw it, and let dying mobs do the work. Just remember it cannot be upgraded, so keep your Redstone and Glowstone for other brews.
