diff --git a/popcorn/Assets/MyGame/Scenes/Cooking/Scripts/CornManager.cs b/popcorn/Assets/MyGame/Scenes/Cooking/Scripts/CornManager.cs
index 9b6a45f0..d7e2ebf2 100644
--- a/popcorn/Assets/MyGame/Scenes/Cooking/Scripts/CornManager.cs
+++ b/popcorn/Assets/MyGame/Scenes/Cooking/Scripts/CornManager.cs
@@ -41,6 +41,7 @@ public class CornManager : MonoBehaviour
         cornArray = new Corn[cornSpawnCount];
         result.AddTo(this);
         cornGrowSpeed.AddTo(this);
+        compositeDisposable.AddTo(this);
     }
 
     public void RespawnCorn()
@@ -63,6 +64,7 @@ public class CornManager : MonoBehaviour
             cornArray[i] = corn;
             corn.SetCornProperty(baseCornPopTime, cornBurntDuration);
             
+            // 進行速度の変更時、コーン速度変更
             cornGrowSpeed.TakeWhile(_ => !isCompleted).Subscribe(x =>
             {
                 // コーンが弾けた後はRedの場合のみ焦げ進行する
@@ -80,6 +82,7 @@ public class CornManager : MonoBehaviour
                 .FirstOrDefault()
                 .Subscribe(_ =>
                 {
+                    // ThermalCondition.Hot以外では焦げ進行なし
                     if (!isHot)
                     {
                         corn.ChangeGrowSpeed(0f);
diff --git a/popcorn/Assets/PopcornGameManager.cs b/popcorn/Assets/PopcornGameManager.cs
index 70fe4ba3..71da3599 100644
--- a/popcorn/Assets/PopcornGameManager.cs
+++ b/popcorn/Assets/PopcornGameManager.cs
@@ -35,6 +35,8 @@ public class PopcornGameManager : MonoBehaviour
     // Start is called before the first frame update
     void Start()
     {
+        compositeDisposable.AddTo(this);
+
         thermalControl.Condition.Subscribe(x =>
         {
             cornManager.ChangeGrowSpeed(x);