diff --git a/popcorn/Assets/MyGame/Scenes/Cooking/Cooking.unity b/popcorn/Assets/MyGame/Scenes/Cooking/Cooking.unity
index fbd14618..f2f8d88e 100644
--- a/popcorn/Assets/MyGame/Scenes/Cooking/Cooking.unity
+++ b/popcorn/Assets/MyGame/Scenes/Cooking/Cooking.unity
@@ -8924,6 +8924,8 @@ MonoBehaviour:
   coldGrowSpeed: 0.1
   hotGrowSpeed: 2
   baseCornPopTime: 12.5
+  cornBurntDuration: 1.5
+  cornBurntRandom: 5
   cornSpillSpeed: 70
   cornPopSpeed: 20
   cornCountSlider: {fileID: 657773260}
diff --git a/popcorn/Assets/MyGame/Scenes/Cooking/Scripts/CornManager.cs b/popcorn/Assets/MyGame/Scenes/Cooking/Scripts/CornManager.cs
index 95194185..6949cfb9 100644
--- a/popcorn/Assets/MyGame/Scenes/Cooking/Scripts/CornManager.cs
+++ b/popcorn/Assets/MyGame/Scenes/Cooking/Scripts/CornManager.cs
@@ -29,6 +29,8 @@ public class CornManager : MonoBehaviour
     [SerializeField] private float coldGrowSpeed = .1f;
     [SerializeField] private float hotGrowSpeed = 2f;
     [SerializeField] private float baseCornPopTime = 5f;
+    [SerializeField] private float cornBurntDuration = 5f;
+    [SerializeField] private float cornBurntRandom = 1f;
     [SerializeField] private float cornSpillSpeed = 50f;
     [SerializeField] private float cornPopSpeed = 20f;
 
@@ -101,6 +103,8 @@ public class CornManager : MonoBehaviour
         coldGrowSpeedSlider.value = coldGrowSpeed;
         hotGrowSpeedSlider.value = hotGrowSpeed;
         popTimeSlider.value = baseCornPopTime;
+        burntDurationSlider.value = cornBurntDuration;
+        burntRandomSlider.value = cornBurntRandom;
         spilledSpeedSlider.value = cornSpillSpeed;
         popSpeedSlider.value = cornPopSpeed;
         
@@ -109,6 +113,8 @@ public class CornManager : MonoBehaviour
         coldGrowSpeedSlider.OnValueChangedAsObservable().Subscribe(x => coldGrowSpeed = x).AddTo(this);
         hotGrowSpeedSlider.OnValueChangedAsObservable().Subscribe(x => hotGrowSpeed = x).AddTo(this);
         popTimeSlider.OnValueChangedAsObservable().Subscribe(x => baseCornPopTime = x).AddTo(this);
+        burntDurationSlider.OnValueChangedAsObservable().Subscribe(x => cornBurntDuration = x).AddTo(this);
+        burntRandomSlider.OnValueChangedAsObservable().Subscribe(x => cornBurntRandom = x).AddTo(this);
         spilledSpeedSlider.OnValueChangedAsObservable().Subscribe(x => cornSpillSpeed = x).AddTo(this);
         popSpeedSlider.OnValueChangedAsObservable().Subscribe(x => cornPopSpeed = x).AddTo(this);
 #endif
@@ -151,8 +157,7 @@ public class CornManager : MonoBehaviour
 
             var corn = Instantiate(cornPrefab, cornSpawnTarget);
             cornArray[i] = corn;
-            corn.SetCornProperty(popTime, baseCornPopTime - popTime, cornSpillSpeed, cornPopSpeed);
-            
+            corn.SetCornProperty(popTime, cornBurntDuration + Random.Range(0, cornBurntRandom), cornSpillSpeed, cornPopSpeed);
             // 進行速度の変更時、コーン速度変更
             cornGrowSpeed.TakeWhile(_ => !isCompleted).Subscribe(x =>
             {