diff --git a/src/humulus/couch.py b/src/humulus/couch.py
index aebbdcd..1018f7f 100644
--- a/src/humulus/couch.py
+++ b/src/humulus/couch.py
@@ -92,7 +92,7 @@ def put_doc(doc):
 
     # Add a created timestamp
     # Timestamps are written to couchdb in ISO-8601 format
-    doc['created'] = datetime.utcnow().isoformat()
+    doc['created'] = datetime.utcnow().isoformat(timespec='seconds')
 
     return db.create_document(doc, throw_on_exists=True)
 
@@ -102,7 +102,7 @@ def update_doc(doc):
 
     Adds an 'updated' field representing the current time the doc was updated.
     """
-    doc['updated'] = datetime.utcnow().isoformat()
+    doc['updated'] = datetime.utcnow().isoformat(timespec='seconds')
     doc.save()
 
 
diff --git a/src/humulus/recipes.py b/src/humulus/recipes.py
index b1bb480..bc2ead0 100644
--- a/src/humulus/recipes.py
+++ b/src/humulus/recipes.py
@@ -178,8 +178,8 @@ class RecipeForm(FlaskForm):
         recipe['hops'] = [h.doc for h in self.hops]
         if (
                 self.yeast.doc['name'] and
-                self.yeast.doc['low_attenuation'] and
-                self.yeast.doc['high_attenuation']
+                self.yeast.doc['low_attenuation'] != "None" and
+                self.yeast.doc['high_attenuation'] != "None"
             ):
             recipe['yeast'] = self.yeast.doc
         return recipe