--- ../src-base/minecraft/net/minecraft/item/crafting/FurnaceRecipes.java
+++ ../src-work/minecraft/net/minecraft/item/crafting/FurnaceRecipes.java
@@ -113,6 +113,9 @@
 
     public float func_151398_b(ItemStack p_151398_1_)
     {
+        float ret = p_151398_1_.func_77973_b().getSmeltingExperience(p_151398_1_);
+        if (ret != -1) return ret;
+
         Iterator iterator = this.field_77605_c.entrySet().iterator();
         Entry entry;
 
