diff --git a/changelog.md b/changelog.md
index 33ec6a5c..dcc2815f 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,3 +1,6 @@
+## Ex Deorum 3.6
+- Implement custom Compressed Sieve types. Works the same as with sieves, just replace `sieve_materials` with `compressed_sieve_materials`
+
 ## Ex Deorum 3.5
 - Remove Yellorium Dust sieve drop (#116)
 - Fixed Fluid Transformation recipes requiring byproducts
diff --git a/src/main/java/thedarkcolour/exdeorum/material/CompressedSieveMaterial.java b/src/main/java/thedarkcolour/exdeorum/material/CompressedSieveMaterial.java
index f3f2f329..0fc9c973 100644
--- a/src/main/java/thedarkcolour/exdeorum/material/CompressedSieveMaterial.java
+++ b/src/main/java/thedarkcolour/exdeorum/material/CompressedSieveMaterial.java
@@ -20,6 +20,7 @@ package thedarkcolour.exdeorum.material;
 
 import net.minecraft.world.level.block.Block;
 import net.minecraft.world.level.block.SoundType;
+import org.jetbrains.annotations.Nullable;
 import thedarkcolour.exdeorum.block.CompressedSieveBlock;
 
 public class CompressedSieveMaterial extends SieveMaterial {
@@ -31,4 +32,18 @@ public class CompressedSieveMaterial extends SieveMaterial {
     protected Block createBlock() {
         return new CompressedSieveBlock(props().noOcclusion());
     }
+
+    @Nullable
+    public static CompressedSieveMaterial readFromJson(MaterialParser parser) {
+        SoundType soundType = parser.getSoundType();
+        float strength = parser.getStrength();
+        boolean needsCorrectTool = parser.getOptionalBoolean("needs_correct_tool");
+        String requiredModId = parser.getRequiredModId();
+
+        if (parser.error) {
+            return null;
+        } else {
+            return new CompressedSieveMaterial(soundType, strength, needsCorrectTool, requiredModId);
+        }
+    }
 }
diff --git a/src/main/java/thedarkcolour/exdeorum/material/DefaultMaterials.java b/src/main/java/thedarkcolour/exdeorum/material/DefaultMaterials.java
index 8a9fdded..32f238d6 100644
--- a/src/main/java/thedarkcolour/exdeorum/material/DefaultMaterials.java
+++ b/src/main/java/thedarkcolour/exdeorum/material/DefaultMaterials.java
@@ -239,7 +239,7 @@ public class DefaultMaterials {
     public static void registerMaterials() {
         BARRELS.search(BarrelMaterial::readFromJson);
         SIEVES.search(SieveMaterial::readFromJson);
-        // todo compressed sieve JSON
+        COMPRESSED_SIEVES.search(CompressedSieveMaterial::readFromJson);
         LAVA_CRUCIBLES.search(parser -> AbstractCrucibleMaterial.readFromJson(parser, LavaCrucibleMaterial::new));
         WATER_CRUCIBLES.search(parser -> AbstractCrucibleMaterial.readFromJson(parser, WaterCrucibleMaterial::new));
     }