diff --git a/shared/src/main/java/net/blay09/mods/excompressum/registry/heavysieve/HeavySieveRegistry.java b/shared/src/main/java/net/blay09/mods/excompressum/registry/heavysieve/HeavySieveRegistry.java
index 981cdee8..89a1b380 100644
--- a/shared/src/main/java/net/blay09/mods/excompressum/registry/heavysieve/HeavySieveRegistry.java
+++ b/shared/src/main/java/net/blay09/mods/excompressum/registry/heavysieve/HeavySieveRegistry.java
@@ -26,7 +26,7 @@ private static boolean testRecipe(SieveMeshRegistryEntry mesh, ItemStack itemSta
 
         if (recipe.getMinimumMesh() != null) {
             SieveMeshRegistryEntry minimumMesh = SieveMeshRegistry.getEntry(recipe.getMinimumMesh());
-            if (mesh.getMeshLevel() < minimumMesh.getMeshLevel()) {
+            if (minimumMesh != null && mesh.getMeshLevel() < minimumMesh.getMeshLevel()) {
                 return false;
             }
         }