diff --git a/src/darsia/presets/analysis/multichromatictracer.py b/src/darsia/presets/analysis/multichromatictracer.py
index c234d77d..8e3ba144 100644
--- a/src/darsia/presets/analysis/multichromatictracer.py
+++ b/src/darsia/presets/analysis/multichromatictracer.py
@@ -3,12 +3,15 @@
 
 """
 
+import logging
 from typing import Optional
 
 import numpy as np
 
 import darsia
 
+logger = logging.getLogger(__name__)
+
 
 class MultichromaticTracerAnalysis(darsia.ConcentrationAnalysis):
     """Multichomratic concentration analysis tailored to labeled media.
@@ -108,8 +111,14 @@ def __call__(self, image: darsia.Image) -> darsia.Image:
             Image: concentration map
 
         """
+        from time import time
+
+        tic = time()
         concentration = super().__call__(image)
+        logger.debug(f"concentration call: {time() - tic}")
+        tic = time()
         self.expert_knowledge(concentration)
+        logger.debug(f"expert knowledge - concentration: {time() - tic}")
         return concentration
 
     # ! ---- SAVE AND LOAD ----