Quick answer: In Minecraft Java Edition 26.4 Snapshot 5, Packed Ice Bricks and Chiseled Packed Ice were added to the Sulfur Cube’s Fast Sliding archetype. The newest build, 26.4 Snapshot 6 (October 27, 2026), adds Snow Bricks to that archetype and introduces the Cold Sulfur Cube, which floats and can lay Frosted Ice when it moves after absorbing Blue Ice. The key distinction: these blocks affect the cube’s behavior; Packed Ice Bricks themselves are not slippery under players’ feet.
Updated October 27, 2026 · By Shivam Das
Why the Packed Ice Bricks combo matters
Packed Ice Bricks are more than a visual refresh for winter bases. Snapshot 5 explicitly lists Packed Ice Bricks and Chiseled Packed Ice under the Fast Sliding Sulfur Cube archetype, opening up possibilities for player-made hockey, bowling, delivery and obstacle-course maps. Builders can use the brick set to frame a lane or arena while testing the cube’s movement separately.
There is an easy-to-miss difference here: Packed Ice Bricks do not make players or boats slide like regular Packed Ice. Mojang’s published notes name the blocks as a Sulfur Cube archetype, not as a new slippery floor. That means you should design your course around the moving cube, rather than expecting every entity that walks across the bricks to lose traction.
How to build and test the Fast Sliding setup
- Use a compatible test version. The Packed Ice Bricks interaction is documented in Java 26.4 Snapshot 5. Snapshots are experimental, so back up your world and test in a separate copy.
- Craft Packed Ice Bricks. Combine four Packed Ice blocks in a 2×2 crafting grid. Snapshot 5 also adds slab, stair, wall and chiseled variants; the shaped variants can be crafted with a Stonecutter.
- Let the Sulfur Cube absorb the block. Test Packed Ice Bricks and Chiseled Packed Ice separately, following the interaction available in your current build. Do not assume every edition or preview has identical behavior.
- Build a simple course first. Start with a flat, unobstructed lane, side rails and a safe stopping area. Add turns or slopes only after you have a baseline test.
- Change one variable at a time. Keep the starting position and push method consistent. Record what happens instead of claiming an exact speed multiplier that Mojang has not published.
This is a practical testing method, not an official speed benchmark. The published changelogs identify the archetype but do not provide a numeric multiplier for the Packed Ice Bricks interaction.
What changed in Snapshot 6—and why it matters
Snapshot 6, published October 27, 2026, adds Snow Bricks and a new Cold Sulfur Cube archetype. Snow Bricks also belong to the Fast Sliding archetype, making them another option to test in a course. The Cold Sulfur Cube has the same basic properties as the Fast Sliding archetype, but it floats and replaces the water beneath it with a disk of Frosted Ice as it moves.
There are conditions: the Cold Sulfur Cube must begin moving while on the ground, and air must be above the water for Frosted Ice placement. The changelog says this archetype is used when the cube absorbs a Blue Ice block. In other words, the latest update broadens the design space beyond Packed Ice Bricks: builders can experiment with a ground-based fast-slide lane, a water-crossing route, or a hybrid course.
Snapshot 6 also changes how the new ice-block set should be mined: Packed Ice Brick variants require a pickaxe to drop themselves. Since snapshots can change, check the current notes before relying on an older guide or transferring the setup to a main world.
Four minigame ideas for the combo
- Ice-cube bowling: Build a wide lane and place targets at the far end. Score players by the number of targets the moving cube knocks down.
- Delivery run: Ask players to push a cube through gates and around corners without letting it leave the track.
- Timed ramp challenge: Compare runs from marked starting positions. Use rails and a catch zone so players can reset quickly.
- Frosted-Ice water crossing: In Snapshot 6, test the Cold Sulfur Cube with Blue Ice near a water lane, ensuring the cube starts moving on the ground and the required air space is present above the water.
Common mistakes to avoid
- Expecting the bricks themselves to be slippery: Packed Ice Bricks are not a substitute for regular Packed Ice as a sliding floor.
- Quoting an unverified speed number: Mojang’s notes do not give an exact speed multiplier for this combination.
- Mixing up the archetypes: Packed Ice Bricks and Chiseled Packed Ice are named for Fast Sliding; the Cold Sulfur Cube is tied to absorbing Blue Ice and has additional water-and-Frosted-Ice behavior.
- Assuming Java and Bedrock match perfectly: Snapshot and Preview features can differ by edition and build.
- Testing in your only survival save: Make a backup before opening a world in experimental software.
What the official notes confirm
The official Java 26.4 Snapshot 5 changelog confirms that Packed Ice Bricks are crafted from a 2×2 arrangement of Packed Ice; the block set includes slab, stair, wall and chiseled variants; shaped variants can be made with a Stonecutter; and Packed Ice Bricks plus Chiseled Packed Ice belong to the Fast Sliding Sulfur Cube archetype. The official Snapshot 6 changelog adds Snow Bricks to Fast Sliding and describes the Cold Sulfur Cube’s movement and Frosted Ice conditions.
Read the official Java Snapshot 5 notes and the official Java Snapshot 6 notes. The current build matters more than an older social post or a guide written before the latest changes.
Frequently asked questions
Do Packed Ice Bricks make players slide?
No. Packed Ice Bricks behave like ordinary solid blocks for player traction; their documented Fast Sliding role concerns the Sulfur Cube archetype.
Which blocks are confirmed for the Fast Sliding Sulfur Cube archetype?
Snapshot 5 names Packed Ice Bricks and Chiseled Packed Ice. Snapshot 6 also names Snow Bricks. Always check the changelog for the exact build you are playing.
What is different about the Cold Sulfur Cube?
It floats and can replace water beneath it with Frosted Ice while moving. It needs to start moving while on the ground, requires air above the water, and is used when the cube absorbs Blue Ice.
Is there an official speed multiplier for Packed Ice Bricks?
No numeric multiplier is given in the published Snapshot 5 notes. Test in your version and avoid presenting an estimate as an official stat.
Can I safely use this in my main world?
Back up your world first. Snapshots are work in progress and can behave differently from a stable release.
Related Minecraft guides
- Packed Ice Bricks vs. Regular Packed Ice: Which Is Better for Sliding Tracks?
- Frostbite Farming Guide for XP and Ice Balls Right Now
- Minecraft Ambient Ice Sounds: How to Trigger the New Audio
Author: Shivam Das. Last checked October 27, 2026. Snapshot behavior may change before release.