diff --git a/python/gilded_rose.py b/python/gilded_rose.py
index 4f21ea64..e5027c21 100755
--- a/python/gilded_rose.py
+++ b/python/gilded_rose.py
@@ -1,40 +1,56 @@
 # -*- coding: utf-8 -*-
 
 class GildedRose(object):
-
     def __init__(self, items):
         self.items = items
 
     def update_quality(self):
         for item in self.items:
-            if item.name != "Aged Brie" and item.name != "Backstage passes to a TAFKAL80ETC concert":
-                if item.quality > 0:
-                    if item.name != "Sulfuras, Hand of Ragnaros":
-                        item.quality = item.quality - 1
-            else:
-                if item.quality < 50:
-                    item.quality = item.quality + 1
-                    if item.name == "Backstage passes to a TAFKAL80ETC concert":
-                        if item.sell_in < 11:
-                            if item.quality < 50:
-                                item.quality = item.quality + 1
-                        if item.sell_in < 6:
-                            if item.quality < 50:
-                                item.quality = item.quality + 1
-            if item.name != "Sulfuras, Hand of Ragnaros":
-                item.sell_in = item.sell_in - 1
+            self.update_item_quality(item)
+            self.update_sell_in(item)
             if item.sell_in < 0:
-                if item.name != "Aged Brie":
-                    if item.name != "Backstage passes to a TAFKAL80ETC concert":
-                        if item.quality > 0:
-                            if item.name != "Sulfuras, Hand of Ragnaros":
-                                item.quality = item.quality - 1
-                    else:
-                        item.quality = item.quality - item.quality
-                else:
-                    if item.quality < 50:
-                        item.quality = item.quality + 1
+                self.handle_expired_item(item)
 
+    def update_item_quality(self, item):
+        if item.name == "Aged Brie":
+            self.update_aged_brie(item)
+        elif item.name == "Backstage passes to a TAFKAL80ETC concert":
+            self.update_backstage_pass(item)
+        elif item.name != "Sulfuras, Hand of Ragnaros":
+            self.update_normal_item(item)
+
+    def update_sell_in(self, item):
+        if item.name != "Sulfuras, Hand of Ragnaros":
+            item.sell_in -= 1
+
+    def handle_expired_item(self, item):
+        if item.name == "Aged Brie":
+            self.increase_quality(item)
+        elif item.name == "Backstage passes to a TAFKAL80ETC concert":
+            item.quality = 0
+        elif item.name != "Sulfuras, Hand of Ragnaros":
+            self.decrease_quality(item)
+
+    def update_aged_brie(self, item):
+        self.increase_quality(item)
+
+    def update_backstage_pass(self, item):
+        self.increase_quality(item)
+        if item.sell_in < 11:
+            self.increase_quality(item)
+        if item.sell_in < 6:
+            self.increase_quality(item)
+
+    def update_normal_item(self, item):
+        self.decrease_quality(item)
+
+    def increase_quality(self, item):
+        if item.quality < 50:
+            item.quality += 1
+
+    def decrease_quality(self, item):
+        if item.quality > 0:
+            item.quality -= 1
 
 class Item:
     def __init__(self, name, sell_in, quality):