diff --git a/Common/src/main/java/com/almostreliable/unified/AlmostUnifiedRuntimeImpl.java b/Common/src/main/java/com/almostreliable/unified/AlmostUnifiedRuntimeImpl.java
index 02ec99b..7ca8e3d 100644
--- a/Common/src/main/java/com/almostreliable/unified/AlmostUnifiedRuntimeImpl.java
+++ b/Common/src/main/java/com/almostreliable/unified/AlmostUnifiedRuntimeImpl.java
@@ -7,6 +7,7 @@ import com.almostreliable.unified.config.UnifyConfig;
 import com.almostreliable.unified.recipe.RecipeDumper;
 import com.almostreliable.unified.recipe.RecipeTransformer;
 import com.almostreliable.unified.recipe.unifier.RecipeHandlerFactory;
+import com.almostreliable.unified.utils.MissingRecipesDumper;
 import com.almostreliable.unified.utils.ReplacementMap;
 import com.almostreliable.unified.utils.TagMap;
 import com.google.gson.JsonElement;
@@ -55,6 +56,7 @@ public final class AlmostUnifiedRuntimeImpl implements AlmostUnifiedRuntime {
         dumper.dump(debugConfig.dumpOverview, debugConfig.dumpUnification, debugConfig.dumpDuplicates);
 
         debugConfig.logRecipes(recipes, "recipes_after_unification.txt");
+        MissingRecipesDumper.write(this, debugConfig.dumpPotentialMissingRecipes, recipes);
     }
 
     @Override
diff --git a/Common/src/main/java/com/almostreliable/unified/config/DebugConfig.java b/Common/src/main/java/com/almostreliable/unified/config/DebugConfig.java
index 4e2e6e7..82b275e 100644
--- a/Common/src/main/java/com/almostreliable/unified/config/DebugConfig.java
+++ b/Common/src/main/java/com/almostreliable/unified/config/DebugConfig.java
@@ -21,13 +21,15 @@ public class DebugConfig extends Config {
     public final boolean dumpUnification;
     public final boolean dumpOverview;
     public final boolean dumpRecipes;
+    public final boolean dumpPotentialMissingRecipes;
 
-    public DebugConfig(boolean dumpTagMap, boolean dumpDuplicates, boolean dumpUnification, boolean dumpOverview, boolean dumpRecipes) {
+    public DebugConfig(boolean dumpTagMap, boolean dumpDuplicates, boolean dumpUnification, boolean dumpOverview, boolean dumpRecipes, boolean dumpPotentialMissingRecipes) {
         this.dumpTagMap = dumpTagMap;
         this.dumpDuplicates = dumpDuplicates;
         this.dumpUnification = dumpUnification;
         this.dumpOverview = dumpOverview;
         this.dumpRecipes = dumpRecipes;
+        this.dumpPotentialMissingRecipes = dumpPotentialMissingRecipes;
     }
 
     public void logUnifyTagDump(TagMap<Item> tagMap) {
@@ -71,6 +73,7 @@ public class DebugConfig extends Config {
         public static final String DUMP_UNIFICATION = "dumpUnification";
         public static final String DUMP_OVERVIEW = "dumpOverview";
         public static final String DUMP_RECIPES = "dumpRecipes";
+        public static final String DUMP_POTENTIAL_MISSING_RECIPES = "dumpPotentialMissingRecipes";
 
         @Override
         public DebugConfig deserialize(JsonObject json) {
@@ -79,7 +82,8 @@ public class DebugConfig extends Config {
                     safeGet(() -> json.get(DUMP_DUPLICATES).getAsBoolean(), false),
                     safeGet(() -> json.get(DUMP_UNIFICATION).getAsBoolean(), false),
                     safeGet(() -> json.get(DUMP_OVERVIEW).getAsBoolean(), false),
-                    safeGet(() -> json.get(DUMP_RECIPES).getAsBoolean(), false)
+                    safeGet(() -> json.get(DUMP_RECIPES).getAsBoolean(), false),
+                    safeGet(() -> json.get(DUMP_POTENTIAL_MISSING_RECIPES).getAsBoolean(), false)
             );
         }
 
@@ -91,6 +95,7 @@ public class DebugConfig extends Config {
             json.addProperty(DUMP_UNIFICATION, src.dumpUnification);
             json.addProperty(DUMP_OVERVIEW, src.dumpOverview);
             json.addProperty(DUMP_RECIPES, src.dumpRecipes);
+            json.addProperty(DUMP_POTENTIAL_MISSING_RECIPES, src.dumpPotentialMissingRecipes);
             return json;
         }
     }
diff --git a/Common/src/main/java/com/almostreliable/unified/utils/MissingRecipesDumper.java b/Common/src/main/java/com/almostreliable/unified/utils/MissingRecipesDumper.java
new file mode 100644
index 0000000..1b19892
--- /dev/null
+++ b/Common/src/main/java/com/almostreliable/unified/utils/MissingRecipesDumper.java
@@ -0,0 +1,95 @@
+package com.almostreliable.unified.utils;
+
+import com.almostreliable.unified.AlmostUnifiedPlatform;
+import com.almostreliable.unified.AlmostUnifiedRuntime;
+import com.google.common.collect.HashMultimap;
+import com.google.common.collect.Multimap;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.world.item.Item;
+
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+
+public class MissingRecipesDumper {
+
+    public static void write(AlmostUnifiedRuntime runtime, boolean dumpPotentialMissingRecipes, Map<ResourceLocation, JsonElement> recipes) {
+        if (!dumpPotentialMissingRecipes) return;
+
+        var itemsPerTag = getHidingIds(runtime);
+        FileUtils.write(AlmostUnifiedPlatform.INSTANCE.getLogPath(), "recipe_hiding_check.txt", sb -> {
+            recipes.forEach(((recipe, json) -> {
+                if (json instanceof JsonObject obj) {
+                    write(recipe, obj, itemsPerTag, sb);
+                }
+            }));
+        });
+    }
+
+    private static void write(ResourceLocation recipe, JsonObject json, Multimap<UnifyTag<Item>, ResourceLocation> itemsPerTag, StringBuilder sb) {
+        String jsonStr = json.toString();
+        Multimap<UnifyTag<Item>, ResourceLocation> found = HashMultimap.create();
+        itemsPerTag.asMap().forEach((tag, items) -> {
+            for (ResourceLocation item : items) {
+                if (jsonStr.contains(item.toString())) {
+                    found.put(tag, item);
+                }
+            }
+        });
+
+        if (found.isEmpty()) return;
+
+        String type = Optional.ofNullable(json.get("type")).map(JsonElement::getAsString).orElse("");
+        sb
+                .append("Recipe ")
+                .append(recipe)
+                .append(" (")
+                .append(type)
+                .append(") contains potentially hiding items:")
+                .append("\n")
+                .append("Json: ")
+                .append(jsonStr)
+                .append("\n")
+                .append("Items: ")
+                .append("\n");
+        found.asMap().forEach((tag, items) -> {
+            for (ResourceLocation item : items) {
+                sb.append("\t").append(item).append(" (#").append(tag.location()).append(")").append("\n");
+            }
+        });
+
+        sb.append("\n");
+    }
+
+
+    public static Multimap<UnifyTag<Item>, ResourceLocation> getHidingIds(AlmostUnifiedRuntime runtime) {
+        ReplacementMap repMap = runtime.getReplacementMap().orElse(null);
+        var tagMap = runtime.getFilteredTagMap().orElse(null);
+
+        Multimap<UnifyTag<Item>, ResourceLocation> hidings = HashMultimap.create();
+        if (repMap == null || tagMap == null) return hidings;
+
+        for (var unifyTag : tagMap.getTags()) {
+            var itemsByTag = tagMap.getEntriesByTag(unifyTag);
+
+            if (Utils.allSameNamespace(itemsByTag)) continue;
+
+            ResourceLocation kingItem = repMap.getPreferredItemForTag(unifyTag, $ -> true);
+            if (kingItem == null) continue;
+
+            Set<ResourceLocation> r = new HashSet<>();
+            for (ResourceLocation item : itemsByTag) {
+                if (!item.equals(kingItem)) {
+                    r.add(item);
+                }
+            }
+
+            hidings.putAll(unifyTag, r);
+        }
+
+        return hidings;
+    }
+}