diff --git a/README.md b/README.md
index 491908c..e167ea9 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,12 @@
 
+# Configuration
+
+The configuration is stored the the `src/config.yaml` file.
+
+## Database-specific configuration
+
+`database_name` should contain the name of the database to use. The database has to be stored in the proper directory structure (See the [Directory structure > Datasets](README.md#Datasets))
+
 # Directory structure of the project
 
 ## Virtual environment
diff --git a/src/config.yaml b/src/config.yaml
index 3aa0edb..b725746 100644
--- a/src/config.yaml
+++ b/src/config.yaml
@@ -104,3 +104,4 @@ verbose:
   querying: true
   concentration_test: true
 
+persistent_query_memoization: false
diff --git a/src/querying.py b/src/querying.py
index ba994d6..c3b1e91 100644
--- a/src/querying.py
+++ b/src/querying.py
@@ -11,7 +11,15 @@ import orderankings as odrk
 from config import CONFIG, DATABASE_CFG, VENV_HOME, DATABASE_FILE
 
 # persistent memoïzation
-memory = Memory(f"{VENV_HOME}/src/cache")
+if CONFIG["persistent_query_memoization"]:
+    memory = Memory(f"{VENV_HOME}/src/cache")
+else:
+    # if memoïzation is disabled, then just use the false memoization decorator
+    class FalseMemory:
+        def cache(self, func):
+            """This is a decorator that does nothing to its function."""
+            return func
+    memory = FalseMemory()
 
 VERBOSE = CONFIG["verbose"]["querying"]