Geysers are one of the newest additions to Minecraft, added in the Chaos Cubed update, and they let you launch players, mobs, and items high into the air with a jet of erupting water. Building one takes just two special blocks and some water. This guide covers the full recipe, both geyser types, how tall you can make them, and where to find the ingredients.
Everything here is confirmed in the current 2026 version of Minecraft (26.2).
Quick answer: place a magma block, put a potent sulfur block on top of it, then place 1 to 4 water source blocks above the sulfur. The potent sulfur erupts into a geyser that launches anything above it upward.
Geyser at a Glance
| Detail | Value |
|---|---|
| Blocks needed | Potent sulfur + magma block (or lava) |
| Water column | 1 to 4 source blocks above the sulfur |
| Geyser height | 5 x the number of water blocks |
| Max height | 20 blocks (4 water) |
How to Build a Geyser
The setup is a vertical stack. From the bottom up:
- Dig down at least 3 blocks
Dig a vertical hole at least 3 blocks deep where you want the geyser.
- Place a magma block at the bottom
Put a magma block at the very bottom of the hole. Use a lava source instead if you want a continuous geyser.
- Add potent sulfur
Place a potent sulfur block directly on top of the magma block.
- Add 1 to 4 water source blocks
Fill the space above the sulfur with 1 to 4 water source blocks. Every block must be a source block, and more than 4 stops it from working. The potent sulfur then erupts on its own.
The Two Geyser Types
What sits under the potent sulfur decides how it behaves:
- Periodic geyser (magma block below): erupts on a cycle. It has a dormant phase, then a burst. A full cycle runs roughly 15 to 60 seconds, and each eruption lasts about 1 to 5 seconds. This is the standard build.
- Continuous geyser (lava source below): no dormant phase at all, it erupts constantly. Use this when you want a permanent launcher or fountain.
During an eruption, the geyser pushes any entity above it upward, including things underwater, which makes it perfect for mob launchers, elevators, and travel systems.
Controlling the Height
The height of the geyser equals 5 times the number of water source blocks above the potent sulfur:
- 1 water block: about 5 blocks high (short dormant phase, ~1 to 2 second eruptions)
- 4 water blocks: about 20 blocks high (longer ~45 to 60 second cycle, 4 to 5 second eruptions)
So more water means a taller, longer, but less frequent geyser. Four water blocks is the maximum and gives the tallest 20-block plume.
Where to Get the Blocks
You only need two blocks:
- Magma block: common in the Nether (large clusters sit around Y 27 to 36 near the lava sea), and also in the Overworld in underwater magma spots, ocean ruins, ruined portals, and the sulfur biomes.
- Potent sulfur: a new block found in sulfur springs (on the surface, above the caves) and sulfur caves (an underground biome). You can spot it by its brighter yellow color and the noxious gas on the water above it. You can also craft it from 9 sulfur in a crafting table. Always mine sulfur and potent sulfur with a pickaxe, or it drops nothing.
A Warning: Noxious Gas
Potent sulfur is not harmless. When it sits under shallow water, it gives off a noxious gas, shown as yellow particles on the surface. Any player or mob in that water gets the Nausea effect for 4 seconds (the wobbly-screen effect), renewed the whole time they stand in it. It will not kill you, but it is disorienting, so be ready for it when building or harvesting around sulfur.
Frequently Asked Questions
Place a magma block, put a potent sulfur block on top, then place 1 to 4 water source blocks above the sulfur. The potent sulfur erupts into a geyser that launches entities upward.
Just two: potent sulfur and a magma block (or a lava source). The magma block makes a periodic geyser; a lava source makes a continuous one.
The height is 5 times the number of water blocks above the potent sulfur, up to a maximum of 20 blocks with 4 water source blocks. More than 4 water blocks stops it from working.
A periodic geyser (magma block below) erupts on a cycle of roughly 15 to 60 seconds. A continuous geyser (lava source below) has no dormant phase and erupts nonstop.
In sulfur springs on the surface and sulfur caves underground. It is a bright yellow block, mined with a pickaxe. You can also craft it from 9 sulfur blocks.
It releases a noxious gas under shallow water that gives Nausea for 4 seconds, shown as yellow particles. It does not deal damage but makes your screen wobble while you are in the water.
Geysers are a fun new mechanic once you have the two blocks: stack a magma block, potent sulfur, and up to four water, and you have a launcher that fires anything skyward. Use a lava source for a nonstop version, and just watch out for the nausea-inducing gas while you build.
