How to Make an Aether Portal – The Aether Wiki (1.21.1)

The Aether portal is built like a Nether portal, but from Glowstone, and water lights it instead of fire. On our test server a Glowstone frame 4 blocks wide and 5 tall filled with portal blocks as soon as a water bucket was emptied onto the bottom of the opening.

Loading the 3D view…

Tap or click a block to see what it is.

Build an upright frame of Glowstone blocks, 4 wide and 5 tall like a Nether portal — the opening inside is 2 × 3. Corners are part of this frame here.
Empty a water bucket into the bottom of the opening: the water turns into the Aether portal.

Materials 1 kinds · 14 items

Glowstonestep 1×14

Layer planLayer 1 is the bottom · north is up · 4 × 5 × 1 blocks

The layer plan appears with the 3D view.

The Glowstone frame: 4 wide, 5 tall, a 2 × 3 opening.Textures, models and item names © AlphaMode, baguchi, bconlon, Blodhgarm, Burning Cactus, Drullkus, Hugo Payn, Jaryt, Katie 'Oz' Payn, quek, Raptor, reetam, RENREN, sunsette and the Aether contributors. Vanilla textures © Mojang.

Good to know

The opening inside the frame is 2 blocks wide and 3 tall.
Pour the water onto the top of a bottom frame block, inside the opening.

First steps in the Aether: Getting Started with The Aether. Its stations and dungeons: The Aether: Altar, Freezer, Incubator and the Three Dungeons.

Textures, models and item names © AlphaMode, baguchi, bconlon, Blodhgarm, Burning Cactus, Drullkus, Hugo Payn, Jaryt, Katie 'Oz' Payn, quek, Raptor, reetam, RENREN, sunsette and the Aether contributors.

Recipes, names and numbers are read from the mod files of The Aether 1.5.10 for Minecraft 1.21.1 (NeoForge). Not affiliated with the mod authors, Mojang or Microsoft.