diff --git a/include/tug/Simulation.hpp b/include/tug/Simulation.hpp
index f7cbfd3..d9658b0 100644
--- a/include/tug/Simulation.hpp
+++ b/include/tug/Simulation.hpp
@@ -17,7 +17,7 @@ enum CSV_OUTPUT {
 
 enum CONSOLE_OUTPUT {
     CONSOLE_OUTPUT_OFF, // do not print any output to console
-    CONSOLE_OUTPUT_ON, // print before concentrations to console
+    CONSOLE_OUTPUT_ON, // print before and after concentrations to console
     CONSOLE_OUTPUT_VERBOSE // print all concentration matrices to console
 };
 
diff --git a/src/Simulation.cpp b/src/Simulation.cpp
index 07ec676..d74bc29 100644
--- a/src/Simulation.cpp
+++ b/src/Simulation.cpp
@@ -152,7 +152,6 @@ void Simulation::run() {
     }
     if (this->csv_output > CSV_OUTPUT_OFF) {
         filename = createCSVfile();
-        printConcentrationsCSV(filename);
     }
 
     if (approach == FTCS_APPROACH) {
@@ -161,7 +160,7 @@ void Simulation::run() {
             if (console_output == CONSOLE_OUTPUT_VERBOSE && i > 0) {
                 printConcentrationsConsole();
             }
-            if (csv_output == CSV_OUTPUT_VERBOSE && i > 0) {
+            if (csv_output == CSV_OUTPUT_VERBOSE) {
                 printConcentrationsCSV(filename);
             }