diff --git a/jsprit-core/src/main/java/jsprit/core/algorithm/box/InsertionNoiseMaker.java b/jsprit-core/src/main/java/jsprit/core/algorithm/box/InsertionNoiseMaker.java
index f8acbbca..8aed19a2 100644
--- a/jsprit-core/src/main/java/jsprit/core/algorithm/box/InsertionNoiseMaker.java
+++ b/jsprit-core/src/main/java/jsprit/core/algorithm/box/InsertionNoiseMaker.java
@@ -56,7 +56,6 @@ class InsertionNoiseMaker implements SoftActivityConstraint, IterationStartsList
             }
         }
         maxCosts = max;
-        System.out.println("maxNoise="+maxCosts);
     }
 
     private List<Location> getLocations(Job j) {
diff --git a/jsprit-core/src/main/java/jsprit/core/algorithm/box/Jsprit.java b/jsprit-core/src/main/java/jsprit/core/algorithm/box/Jsprit.java
index 06c84f55..af75626a 100644
--- a/jsprit-core/src/main/java/jsprit/core/algorithm/box/Jsprit.java
+++ b/jsprit-core/src/main/java/jsprit/core/algorithm/box/Jsprit.java
@@ -432,7 +432,6 @@ public class Jsprit {
                 if(i == 1){
                     double initialThreshold = Solutions.bestOf(solutions).getCost() * toDouble(getProperty(Parameter.THRESHOLD_INI.toString()));
                     schrimpfAcceptance.setInitialThreshold(initialThreshold);
-                    System.out.println("threshold: " + initialThreshold);
                 }
             }
         };