diff --git a/compacting-storage.lua b/compacting-storage.lua
index 99df3ac..eaf81ec 100644
--- a/compacting-storage.lua
+++ b/compacting-storage.lua
@@ -12,7 +12,33 @@ local REQUEST_TICKER = ""
 local SLEEP_TIME = 30
 local NUGGET_RATIO = 63 -- amount of nuggets per craft
 local BLOCK_RATIO = 7 -- amount of blocks per craft
-local ITEM_TYPES = { "iron", "copper", "zinc", "gold", "electrum" }
+local ITEM_TYPES = {
+    iron = {
+        nugget = "minecraft",
+        ingot = "minecraft",
+        block = "minecraft",
+    },
+    copper = {
+        nugget = "create",
+        ingot = "minecraft",
+        block = "minecraft",
+    },
+    zinc = {
+        nugget = "create",
+        ingot = "create",
+        block = "create",
+    },
+    gold = {
+        nugget = "minecraft",
+        ingot = "minecraft",
+        block = "minecraft",
+    },
+    electrum = {
+        nugget = "createaddition",
+        ingot = "createaddition",
+        block = "createaddition",
+    },
+}
 
 local STACKS = 64
 local NUGGETS = 1