diff --git a/model/cs/content-store-with-freshness.h b/model/cs/content-store-with-freshness.h
index dab654c..81f8856 100644
--- a/model/cs/content-store-with-freshness.h
+++ b/model/cs/content-store-with-freshness.h
@@ -42,6 +42,9 @@
   static TypeId
   GetTypeId ();
 
+  virtual inline void
+  Print (std::ostream &os) const;
+
   virtual inline bool
   Add (Ptr<const ContentObject> header, Ptr<const Packet> packet);
 
@@ -156,6 +159,22 @@
   RescheduleCleaning ();
 }
 
+template<class Policy>
+void
+ContentStoreWithFreshness< Policy >::Print (std::ostream &os) const
+{
+  // const freshness_policy_container &freshness = this->getPolicy ().template get<freshness_policy_container> ();
+
+  for (typename super::policy_container::const_iterator item = this->getPolicy ().begin ();
+       item != this->getPolicy ().end ();
+       item++)
+    {
+      Time ttl = freshness_policy_container::policy_base::get_freshness (&(*item)) - Simulator::Now ();
+      os << item->payload ()->GetName () << "(left: " << ttl.ToDouble (Time::S) << "s)" << std::endl;
+    }
+}
+
+
 
 } // namespace cs
 } // namespace ndn