diff --git a/miio/integrations/chunmi/cooker_multi/cooker_multi.py b/miio/integrations/chunmi/cooker_multi/cooker_multi.py
index d7b3eff33..54f0f3495 100644
--- a/miio/integrations/chunmi/cooker_multi/cooker_multi.py
+++ b/miio/integrations/chunmi/cooker_multi/cooker_multi.py
@@ -269,12 +269,9 @@ def ready_at(self) -> Optional[datetime.datetime]:
             return None
 
         return (
-            datetime.datetime.now()
-            + datetime.timedelta(
-                minutes=self.remaining
-            )
+            datetime.datetime.now() + datetime.timedelta(minutes=self.remaining)
         ).replace(second=0, microsecond=0)
-    
+
     @property
     @sensor("Cooking process time remaining in minutes")
     def remaining(self) -> int:
@@ -283,14 +280,16 @@ def remaining(self) -> int:
         if self.mode != OperationMode.PreCook and self.mode != OperationMode.Running:
             return 0
 
-        remaining_minutes = int(self.data["t_left"]/60)
+        remaining_minutes = int(self.data["t_left"] / 60)
         if self.mode == OperationMode.PreCook:
             remaining_minutes = int(self.data["t_pre"])
 
         return remaining_minutes
-    
+
     @property
-    @sensor("Cooking process delay time remaining in minutes (precook phase time remaining)")
+    @sensor(
+        "Cooking process delay time remaining in minutes (precook phase time remaining)"
+    )
     def delay_remaining(self) -> int:
         """Remaining minutes of the cooking delay (precook phase)."""
 
diff --git a/miio/integrations/chunmi/cooker_multi/test_cooker_multi.py b/miio/integrations/chunmi/cooker_multi/test_cooker_multi.py
index bd855b755..ab44540da 100644
--- a/miio/integrations/chunmi/cooker_multi/test_cooker_multi.py
+++ b/miio/integrations/chunmi/cooker_multi/test_cooker_multi.py
@@ -214,12 +214,12 @@ def test_case_0(self):
         status = self.device.status()
         assert status.mode == OperationMode.PreCook
         assert status.menu == "Fine Rice"
-        assert status.cooking_delayed == 75
+        assert status.delay_remaining == 75 - 60
         assert status.keep_warm is True
 
         # Total time should be 75min delay + 60min cooking time for "Fine rice"
         assert status.ready_at == (
-            datetime.datetime.now() + datetime.timedelta(0, (75 + 60) * 60)
+            datetime.datetime.now() + datetime.timedelta(0, minutes=(15 + 60))
         ).replace(second=0, microsecond=0)
         self.device.stop()
 
@@ -228,12 +228,12 @@ def test_case_1(self):
         status = self.device.status()
         assert status.mode == OperationMode.PreCook
         assert status.menu == "Fine Rice"
-        assert status.cooking_delayed == 75
+        assert status.delay_remaining == 75 - 60
         assert status.keep_warm is False
 
         # Total time should be 75min delay + 60min cooking time for "Fine rice"
         assert status.ready_at == (
-            datetime.datetime.now() + datetime.timedelta(0, (75 + 60) * 60)
+            datetime.datetime.now() + datetime.timedelta(0, minutes=(15 + 60))
         ).replace(second=0, microsecond=0)
         self.device.stop()
 
@@ -242,12 +242,12 @@ def test_case_2(self):
         status = self.device.status()
         assert status.mode == OperationMode.PreCook
         assert status.menu == "Quick Rice"
-        assert status.cooking_delayed == 75
+        assert status.delay_remaining == 75 - 40
         assert status.keep_warm is False
 
         # Total time should be 75min delay + 40min cooking time for "Quick rice"
         assert status.ready_at == (
-            datetime.datetime.now() + datetime.timedelta(0, (75 + 40) * 60)
+            datetime.datetime.now() + datetime.timedelta(0, minutes=(35 + 40))
         ).replace(second=0, microsecond=0)
         self.device.stop()