diff --git a/src/content_inventory.cpp b/src/content_inventory.cpp
index 349d47d..2a05b76 100644
--- a/src/content_inventory.cpp
+++ b/src/content_inventory.cpp
@@ -22,29 +22,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "content_mapnode.h"
 //#include "serverobject.h"
 #include "content_sao.h"
-
-bool item_material_is_cookable(content_t content, IGameDef *gamedef)
-{
-	if(content == CONTENT_TREE)
-		return true;
-	else if(content == CONTENT_COBBLE)
-		return true;
-	else if(content == CONTENT_SAND)
-		return true;
-	return false;
-}
-
-InventoryItem* item_material_create_cook_result(content_t content,
-		IGameDef *gamedef)
-{
-	if(content == CONTENT_TREE)
-		return new CraftItem(gamedef, "lump_of_coal", 1);
-	else if(content == CONTENT_COBBLE)
-		return new MaterialItem(gamedef, CONTENT_STONE, 1);
-	else if(content == CONTENT_SAND)
-		return new MaterialItem(gamedef, CONTENT_GLASS, 1);
-	return NULL;
-}
+//#include "gamedef.h"
+//#include "nodedef.h"
 
 std::string item_craft_get_image_name(const std::string &subname,
 		IGameDef *gamedef)
diff --git a/src/content_inventory.h b/src/content_inventory.h
index 0b384f1..40e8f54 100644
--- a/src/content_inventory.h
+++ b/src/content_inventory.h
@@ -29,10 +29,6 @@ class ServerActiveObject;
 class ServerEnvironment;
 class IGameDef;
 
-bool item_material_is_cookable(content_t content, IGameDef *gamedef);
-InventoryItem* item_material_create_cook_result(content_t content,
-		IGameDef *gamedef);
-
 std::string         item_craft_get_image_name(const std::string &subname,
 		IGameDef *gamedef);
 ServerActiveObject* item_craft_create_object(const std::string &subname,
diff --git a/src/content_mapnode.cpp b/src/content_mapnode.cpp
index c33d8c4..30a7067 100644
--- a/src/content_mapnode.cpp
+++ b/src/content_mapnode.cpp
@@ -206,6 +206,7 @@ void content_mapnode_init(IWritableNodeDefManager *nodemgr)
 	f->param_type = CPT_MINERAL;
 	f->is_ground_content = true;
 	f->dug_item = std::string("MaterialItem2 ")+itos(i)+" 1";
+	f->cookresult_item = std::string("MaterialItem2 ")+itos(CONTENT_GLASS)+" 1";
 	setDirtLikeMaterialProperties(f->material, 1.0);
 	
 	i = CONTENT_GRAVEL;
@@ -252,6 +253,7 @@ void content_mapnode_init(IWritableNodeDefManager *nodemgr)
 	f->param_type = CPT_MINERAL;
 	f->is_ground_content = true;
 	f->dug_item = std::string("MaterialItem2 ")+itos(i)+" 1";
+	f->cookresult_item = "CraftItem lump_of_coal 1";
 	setWoodLikeMaterialProperties(f->material, 1.0);
 	
 	i = CONTENT_JUNGLETREE;
@@ -596,6 +598,7 @@ void content_mapnode_init(IWritableNodeDefManager *nodemgr)
 	f->param_type = CPT_NONE;
 	f->is_ground_content = true;
 	f->dug_item = std::string("MaterialItem2 ")+itos(i)+" 1";
+	f->cookresult_item = std::string("MaterialItem2 ")+itos(CONTENT_STONE)+" 1";
 	setStoneLikeMaterialProperties(f->material, 0.9);
 
 	i = CONTENT_MOSSYCOBBLE;
diff --git a/src/inventory.cpp b/src/inventory.cpp
index 1929761..6d0a2a2 100644
--- a/src/inventory.cpp
+++ b/src/inventory.cpp
@@ -158,12 +158,17 @@ video::ITexture * MaterialItem::getImage(ITextureSource *tsrc) const
 
 bool MaterialItem::isCookable() const
 {
-	return item_material_is_cookable(m_content, m_gamedef);
+	INodeDefManager *ndef = m_gamedef->ndef();
+	const ContentFeatures &f = ndef->get(m_content);
+	return (f.cookresult_item != "");
 }
 
 InventoryItem *MaterialItem::createCookResult() const
 {
-	return item_material_create_cook_result(m_content, m_gamedef);
+	INodeDefManager *ndef = m_gamedef->ndef();
+	const ContentFeatures &f = ndef->get(m_content);
+	std::istringstream is(f.cookresult_item, std::ios::binary);
+	return InventoryItem::deSerialize(is, m_gamedef);
 }
 
 /*
diff --git a/src/nodedef.cpp b/src/nodedef.cpp
index 4e43369..2e0c6fa 100644
--- a/src/nodedef.cpp
+++ b/src/nodedef.cpp
@@ -140,6 +140,8 @@ void ContentFeatures::reset()
 	air_equivalent = false;
 	often_contains_mineral = false;
 	dug_item = "";
+	extra_dug_item = "";
+	extra_dug_item_rarity = 2;
 	initial_metadata = NULL;
 	liquid_type = LIQUID_NONE;
 	liquid_alternative_flowing = CONTENT_IGNORE;
@@ -149,6 +151,7 @@ void ContentFeatures::reset()
 	damage_per_second = 0;
 	selection_box = NodeBox();
 	material = MaterialProperties();
+	cookresult_item = "";
 }
 
 void ContentFeatures::serialize(std::ostream &os)
@@ -198,6 +201,7 @@ void ContentFeatures::serialize(std::ostream &os)
 	writeU32(os, damage_per_second);
 	selection_box.serialize(os);
 	material.serialize(os);
+	os<<serializeString(cookresult_item);
 }
 
 void ContentFeatures::deSerialize(std::istream &is, IGameDef *gamedef)
@@ -250,6 +254,7 @@ void ContentFeatures::deSerialize(std::istream &is, IGameDef *gamedef)
 	damage_per_second = readU32(is);
 	selection_box.deSerialize(is);
 	material.deSerialize(is);
+	cookresult_item = deSerializeString(is);
 }
 
 void ContentFeatures::setTexture(u16 i, std::string name)
diff --git a/src/nodedef.h b/src/nodedef.h
index e0b7da4..d63f8df 100644
--- a/src/nodedef.h
+++ b/src/nodedef.h
@@ -209,6 +209,7 @@ struct ContentFeatures
 	std::string dug_item;
 	// Extra dug item and its rarity
 	std::string extra_dug_item;
+	// Usual get interval for extra dug item
 	s32 extra_dug_item_rarity;
 	// Initial metadata is cloned from this
 	NodeMetadata *initial_metadata;
@@ -227,6 +228,7 @@ struct ContentFeatures
 	u32 damage_per_second;
 	NodeBox selection_box;
 	MaterialProperties material;
+	std::string cookresult_item;
 
 	/*
 		Methods