Moldy starter

Toast

Why would my stater get moldy after a couple of days. I thought it was the flour so I switched flours. I sanitized the jar. I have tried 4 times and it gets moldy every time. Thanks in advance for any responses. 

You have eliminated the flour and jar... so maybe it's the water? Can you use boiled water that's been allowed to cool, with a cover over it. Maybe make up a bottle or covered jug of it to use for feeding as well. At worst case it could prove that the culprit isn't the water.

Profile picture for user mwilson

mould is ubiquitous in the environment, it may be that your environment is prone to mould and/or your flour is old or has been stored sub-optimally.

Mould loves warmth, humidity and oxygen. It is a strict aerobe and carbon dioxide is a good suppressant - you could consider using sparkling water. 

Try this method instead: An Interesting Way To Make A Starter | The Fresh Loaf