diff --git a/app/models.py b/app/models.py
index 470e5c6a..4ccdd2ba 100644
--- a/app/models.py
+++ b/app/models.py
@@ -7,7 +7,6 @@ from . import db
 from . import login_manager
 import os
 import shutil
-import logging
 import xml.etree.ElementTree as ET
 
 
@@ -226,13 +225,10 @@ class User(UserMixin, db.Model):
         Delete user from database. Also delete all associated jobs and corpora
         files.
         """
-        logger = logging.getLogger(__name__)
         delete_path = os.path.join('/mnt/opaque/', str(self.id))
-        logger.warning('Delete path for user is: {}'.format(delete_path))
         while os.path.exists(delete_path):
             try:
                 shutil.rmtree(delete_path, ignore_errors=True)
-                logger.warning('Path does still exist.')
             except OSError:
                 pass
         db.session.delete(self)
@@ -383,14 +379,11 @@ class Job(db.Model):
         for good.
         See: https://docs.docker.com/engine/swarm/swarm-tutorial/delete-service/
         """
-        logger = logging.getLogger(__name__)
         delete_path = os.path.join('/mnt/opaque/', str(self.user_id), 'jobs',
                                    str(self.id))
-        logger.warning('Delete path is: {}'.format(delete_path))
         while os.path.exists(delete_path):
             try:
                 shutil.rmtree(delete_path, ignore_errors=True)
-                logger.warning('Path does still exist.')
             except OSError:
                 pass
         db.session.delete(self)
@@ -412,15 +405,12 @@ class CorpusFile(db.Model):
     corpus_id = db.Column(db.Integer, db.ForeignKey('corpora.id'))
 
     def delete(self):
-        logger = logging.getLogger(__name__)
-        logger.warning('Called CorpusFile.delete')
         path = os.path.join(current_app.config['OPAQUE_STORAGE_DIRECTORY'],
                             self.dir,
                             self.filename)
         try:
             os.remove(path)
         except:
-            logger.warning('[ERROR] CorpusFile.delete')
             return
         self.corpus.status = 'unprepared'
         db.session.delete(self)
@@ -473,24 +463,15 @@ class Corpus(db.Model):
                 'user_id': self.user_id}
 
     def delete(self):
-        logger = logging.getLogger(__name__)
-        logger.warning('Called Corpus.delete')
         for corpus_file in self.files:
             corpus_file.delete()
-        logger.warning('bis hierhin und nicht weiter')
-        logger.warning('base_dir: {}'.format(current_app.config['OPAQUE_STORAGE_DIRECTORY']))
-        logger.warning('user_id: {}'.format(self.user_id))
-        logger.warning('id: {}'.format(self.id))
         path = os.path.join(current_app.config['OPAQUE_STORAGE_DIRECTORY'],
                             str(self.user_id),
                             'corpora',
                             str(self.id))
-        logger.warning(path)
         try:
-            logger.warning('Try to remove {}'.format(path))
             shutil.rmtree(path)
         except:
-            logger.warning('[ERROR] Corpus.delete')
             return
         db.session.delete(self)
         db.session.commit()