diff --git a/pytorch_lightning/models/trainer.py b/pytorch_lightning/models/trainer.py
index 796533e963..cf2667a04d 100644
--- a/pytorch_lightning/models/trainer.py
+++ b/pytorch_lightning/models/trainer.py
@@ -373,7 +373,7 @@ class Trainer(TrainerIO):
                         metrics.update(grad_norm_dic)
 
                     # log metrics
-                    scalar_metrics = self.__metrics_to_scalars(metrics)
+                    scalar_metrics = self.__metrics_to_scalars(metrics, blacklist=self.__log_vals_blacklist())
                     self.experiment.log(scalar_metrics, global_step=self.global_step)
                     self.experiment.save()
 
@@ -401,7 +401,7 @@ class Trainer(TrainerIO):
                 if stop:
                     return
 
-    def __metrics_to_scalars(self, metrics):
+    def __metrics_to_scalars(self, metrics, blacklist=[]):
         new_metrics = {}
         for k, v in metrics.items():
             if type(v) is torch.Tensor:
@@ -410,10 +410,15 @@ class Trainer(TrainerIO):
             if type(v) is dict:
                 v = self.__metrics_to_scalars(v)
 
-            new_metrics[k] = float(v)
+            if k not in blacklist:
+                new_metrics[k] = float(v)
 
         return new_metrics
 
+    def __log_vals_blacklist(self):
+        """avoid logging some vals lightning uses to maintain state"""
+        blacklist = {'batch_nb', 'v_nb', 'epoch', 'gpu'}
+        return blacklist
 
     def __run_tng_batch(self, data_batch, batch_nb):
         if data_batch is None: