The Fresh Loaf

A Community of Amateur Bakers and Artisan Bread Enthusiasts.

Part of starter turned yellow

Biochemist's picture
Biochemist

Part of starter turned yellow

I recently made a new starter and after a few days, part of the starter on the walls of my mason jar turned yellow.  Does anyone know what this is?

 

bread1965's picture
bread1965

Was your flour old or off? Did it smell like sesame seeds? I once had some flour I didn't use for a long while, developed some yellow spots and smelled like sesame seeds. It turns out that the flour went off - the oils in the flour went bad because I forgot the flour in a warm spot during the summer months.. maybe that's the issue?