diff --git a/Assets/Prefabs/Buildings/StairBuilding.prefab b/Assets/Prefabs/Buildings/StairBuilding.prefab
index 62d1b58..b2ed265 100644
--- a/Assets/Prefabs/Buildings/StairBuilding.prefab
+++ b/Assets/Prefabs/Buildings/StairBuilding.prefab
@@ -157,9 +157,9 @@ GameObject:
   serializedVersion: 6
   m_Component:
   - component: {fileID: 2305386115665963243}
-  - component: {fileID: 4901325652048475046}
+  - component: {fileID: 4128879575467903701}
   m_Layer: 10
-  m_Name: Colliders
+  m_Name: Collider
   m_TagString: Untagged
   m_Icon: {fileID: 0}
   m_NavMeshLayer: 0
@@ -172,20 +172,20 @@ RectTransform:
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 5089027117596162827}
-  m_LocalRotation: {x: 0, y: 0, z: 0.38268343, w: 0.92387956}
+  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
   m_LocalPosition: {x: 0, y: 0, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_ConstrainProportionsScale: 0
   m_Children: []
   m_Father: {fileID: 7134460453558218992}
-  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 45}
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0.5, y: 0.5}
   m_AnchorMax: {x: 0.5, y: 0.5}
   m_AnchoredPosition: {x: 0, y: 0}
-  m_SizeDelta: {x: 100, y: 100}
+  m_SizeDelta: {x: 80, y: 80}
   m_Pivot: {x: 0.5, y: 0.5}
---- !u!61 &4901325652048475046
-BoxCollider2D:
+--- !u!60 &4128879575467903701
+PolygonCollider2D:
   m_ObjectHideFlags: 0
   m_CorrespondingSourceObject: {fileID: 0}
   m_PrefabInstance: {fileID: 0}
@@ -228,5 +228,9 @@ BoxCollider2D:
     drawMode: 0
     adaptiveTiling: 0
   m_AutoTiling: 0
-  m_Size: {x: 114, y: 5}
-  m_EdgeRadius: 0
+  m_Points:
+    m_Paths:
+    - - {x: 40, y: 40}
+      - {x: -40, y: -40}
+      - {x: 40, y: -40}
+  m_UseDelaunayMesh: 1
diff --git a/Assets/Scripts/Game/Buildings/Automation/MixerBuilding.cs b/Assets/Scripts/Game/Buildings/Automation/MixerBuilding.cs
index e7cc1a1..075decb 100644
--- a/Assets/Scripts/Game/Buildings/Automation/MixerBuilding.cs
+++ b/Assets/Scripts/Game/Buildings/Automation/MixerBuilding.cs
@@ -1,13 +1,43 @@
-using Fruitomation.Game.Items;
+using PashaBibko.Pacore.Attributes;
+using System.Collections.Generic;
+using System.Linq;
+using Fruitomation.Game.Items;
+using Fruitomation.Global;
 using UnityEngine;
 
 namespace Fruitomation.Game
 {
     public class MixerBuilding : Building
     {
+        private struct Recipe
+        {
+            public ItemType[] Ingredients;
+            public ItemType Product;
+
+            public Recipe(ItemType[] ingredients, ItemType product)
+            {
+                Ingredients = ingredients;
+                Product = product;
+            }
+        }
+
+        private static Recipe[] Recipes = new Recipe[1]
+        {
+            new
+            (
+                new[] { ItemType.Apple, ItemType.Grape },
+                ItemType.Banana
+            ),
+        };
+
         [Header("Mixer Specific")]
         [SerializeField] private RectTransform OutputLocation;
         [SerializeField] private TriggerDetector Trigger;
+
+        [Header("Read Only")]
+        [SerializeField, InspectorReadOnly] private int StoredItemCount;
+
+        private readonly Dictionary<ItemType, int> StoredItems = new();
         
         private void Start()
         {
@@ -18,11 +48,52 @@ namespace Fruitomation.Game
                 {
                     return;
                 }
-                
-                item.transform.position = OutputLocation.position;
-                item.SendToTheGhostRealm();
-                
+
+                if (StoredItemCount < 50)
+                {
+                    ItemType type = item.CurrentType;
+                    int typeCount = StoredItems.GetValueOrDefault(type);
+
+                    item.TriggerDestruction(false);
+                    StoredItems[type] = typeCount + 1;
+                    StoredItemCount++;
+                }
             }, TriggerType.Enter);
         }
+
+        private void Update()
+        {
+            if (!GameStateController.Is(GameState.Simulation))
+            {
+                StoredItems.Clear();
+                return;
+            }
+
+            foreach (Recipe recipe in Recipes)
+            {
+                bool hasAllIngredients = recipe.Ingredients.Aggregate(true,
+                    (current, ingredient)
+                        => current && StoredItems.ContainsKey(ingredient)
+                );
+
+                if (hasAllIngredients)
+                {
+                    foreach (ItemType ingredient in recipe.Ingredients)
+                    {
+                        int count = StoredItems[ingredient] - 1;
+                        if (count <= 0)
+                        {
+                            StoredItems.Remove(ingredient);
+                        }
+                        else
+                        {
+                            StoredItems[ingredient] = count;
+                        }
+                    }
+
+                    FruitSpawner.SpawnItem(recipe.Product, OutputLocation.position);
+                }
+            }
+        }
     }
 }
diff --git a/Assets/Scripts/Game/FruitSpawner.cs b/Assets/Scripts/Game/FruitSpawner.cs
index ec7cd7b..efbeeaa 100644
--- a/Assets/Scripts/Game/FruitSpawner.cs
+++ b/Assets/Scripts/Game/FruitSpawner.cs
@@ -1,7 +1,9 @@
+using System;
 using System.Collections.Generic;
 using Fruitomation.Game.Items;
 using Fruitomation.Global;
 using UnityEngine;
+using Random = UnityEngine.Random;
 
 namespace Fruitomation.Game
 {
@@ -27,9 +29,14 @@ namespace Fruitomation.Game
         [SerializeField] private GameObject KiwiPrefab;
         [SerializeField] private GameObject BuddhasHandPrefab;
 
+        private static FruitSpawner Instance;
+
         private float TimeUntilNextSpawn;
         
         private int CurrentItemCount => FruitSpawnParent.childCount;
+
+        private void Awake()
+            => Instance = this;
         
         private void Update()
         {
@@ -70,13 +77,25 @@ namespace Fruitomation.Game
             if (UpgradeManager.Is(BasicUpgrade.Pitayas))
                 unlocked.Add(ItemType.Pitaya);
             
+            SpawnItem(unlocked[Random.Range(0, unlocked.Count)]);
+        }
+
+        public static ItemBehaviour SpawnItem(ItemType item, Vector3? pos = null)
+            => Instance.SpawnItemInternal(item, pos);
+
+        private ItemBehaviour SpawnItemInternal(ItemType item, Vector3? pos = null)
+        {
             GameObject parent = Instantiate(BaseItemPrefab, FruitSpawnParent);
-            ItemType type = unlocked[Random.Range(0, unlocked.Count)];
-            
             ItemBehaviour behaviour = parent.GetComponent<ItemBehaviour>();
             Debug.Assert(behaviour is not null, "Could not find ItemBehaviour");
+
+            if (pos != null)
+            {
+                parent.transform.position = (Vector3)pos;
+            }
             
-            behaviour.InitBehaviour(GameCanvas, type);
+            behaviour.InitBehaviour(GameCanvas, item);
+            return behaviour;
         }
     }
 }
diff --git a/Assets/Scripts/Game/Items/ItemBehaviour.cs b/Assets/Scripts/Game/Items/ItemBehaviour.cs
index 61456c8..d06c009 100644
--- a/Assets/Scripts/Game/Items/ItemBehaviour.cs
+++ b/Assets/Scripts/Game/Items/ItemBehaviour.cs
@@ -36,17 +36,25 @@ namespace Fruitomation.Game.Items
 
         private IEnumerator SendToGhostRealmInternal()
         {
-            CurrentChild.SetActive(false);
-            Body2D.Sleep();
-            
+            Sleep();
             yield return new WaitForSeconds(0.5f);
-            
-            CurrentChild.SetActive(true);
-            Body2D.WakeUp();
+            WakeUp();
         }
 
         public void SendToTheGhostRealm() => StartCoroutine(SendToGhostRealmInternal());
 
+        public void Sleep()
+        {
+            CurrentChild.SetActive(false);
+            Body2D.Sleep();
+        }
+
+        public void WakeUp()
+        {
+            CurrentChild.SetActive(true);
+            Body2D.WakeUp();
+        }
+
         public void InitBehaviour(Canvas canvas, ItemType startType)
         {
             RectTransform = transform.GetComponent<RectTransform>();