diff --git a/fink_client/consumer.py b/fink_client/consumer.py
index e6182b5..cb73502 100644
--- a/fink_client/consumer.py
+++ b/fink_client/consumer.py
@@ -33,6 +33,10 @@ class AlertConsumer:
     def __init__(self, topics: list, config: dict, schema_path=None):
         """Creates an instance of `AlertConsumer`
 
+        Note we are currently using SASL for the user authentication.
+        `config` parameters get then translated for Kafka.
+        For lower level usage, see `_get_kafka_config`
+
         Parameters
         ----------
         topics : list of str
@@ -244,6 +248,8 @@ def close(self):
 def _get_kafka_config(config: dict) -> dict:
     """Returns configurations for a consumer instance
 
+    Note we are using SASL for authentication (SCRAM-SHA-512).
+
     Parameters
     ----------
     config: dict