diff --git a/popcorn/Assets/MyGame/Scenes/Main/Scripts/KitchenManager.cs b/popcorn/Assets/MyGame/Scenes/Main/Scripts/KitchenManager.cs
index 975ea370..54f6e8fb 100644
--- a/popcorn/Assets/MyGame/Scenes/Main/Scripts/KitchenManager.cs
+++ b/popcorn/Assets/MyGame/Scenes/Main/Scripts/KitchenManager.cs
@@ -34,7 +34,7 @@ public class KitchenManager : MonoBehaviour
         };
         
         // 所持素材
-        if (gameData.Material == null)
+        if (gameData.Material == null || gameData.Material.Count == 0)
         {
             gameData.Material = new List<(int id, int amount)>
             {