To keep water from freezing in Minecraft, you need to block its exposure to the open sky or raise the light level around it. This guide covers every working method to prevent ice from forming in cold biomes, whether you play Java or Bedrock Edition.
Where water freezes in Minecraft
Water freezes into ice blocks in cold biomes such as Snowy Plains, Snowy Taiga, Frozen Ocean, Frozen Peaks, Frozen River, Deep Frozen Ocean, Snowy Beach, Snowy Tundra, Ice Spikes, Snowy Slopes, and Snowy Beaches. The freezing mechanic only activates when water source blocks have direct access to the open sky, any block placed above the water or on its surface stops the process entirely. If you need a cold block that never melts, you can get powdered snow in Minecraft instead. These methods for preventing water from freezing are generally applicable across both Java and Bedrock Editions of Minecraft and work in most versions, including 1.12 to 1.21.
Method 1: Place light-emitting blocks
Light-emitting blocks such as torches, magma blocks, glowstone, lanterns, and sea lanterns can be placed strategically around water sources to prevent freezing. The light they emit raises the block light level enough to override the freezing conditions in cold biomes. This method works well for small water features, farm irrigation channels, and decorative pools where you want to keep the water surface visible.
Method 2: Cover water with slabs or trapdoors
Placing slabs or trapdoors on the surface of water bodies acts as insulation and prevents freezing by stopping exposure to the open sky. Simply place a slab or trapdoor directly on top of each water source block. This creates a thin barrier that blocks the sky access while allowing you to walk over the water or use it for farming. You can keep your crops watered without worrying about ice forming overnight.
Method 3: Build a roof over the water
Any solid block placed above the water at any height blocks sky exposure and prevents freezing. This is the most flexible method for larger builds like canals, harbors, or massive farm ponds. You can use glass blocks to maintain visibility, planks for a natural look, or any other full block. The roof does not need to be directly on the water, even a high ceiling will stop ice from forming as long as no sky light reaches the water surface.
Method 4: Use mods or plugins to disable freezing
Mods or plugins, such as WorldGuard, can be used to bypass freezing mechanics entirely. Server owners can configure these tools to disable ice formation in specific regions or across entire worlds. This is the most thorough solution for large multiplayer servers where manual placement of blocks would be impractical. You can stop worrying about water freezing in your entire base without placing a single torch or slab.
Why you need unfrozen water in your world
Unfrozen water keeps your farms running smoothly. Crop farms, sugarcane farms, and other water-dependent setups will stop producing if their water sources turn to ice. Boat transport becomes impossible when canals freeze over, and ice highways rely on controlled freezing rather than random ice formation. Aesthetic builds with flowing rivers, fountains, and moats lose their visual appeal when the water solidifies. Keeping water liquid in cold biomes preserves both the functionality and beauty of your creations.
