Should I let my mother (starter) breathe?


Hi everyone. In a previous topic someone mentioned that I should let my starter breathe, otherwise it'll suffocate. I use a glass jar with a screw lid and have been screwing the lid on so the starter didn't dry out. What do you recommend? I'd really appreciate some feedback.

221 users have voted.


farinam's picture
farinam 2013 March 6

Hello simonmorpeth,

I would just engage the first thread or so the keep the lid on so the jar doesn't escape if you lift it by the lid.

I don't think the culture will 'suffocate' though there have been reports of sealed jars cracking under pressure (though I think there might have been pre-existing flaws if they did).

Good luck with your projects.


Alvaremj's picture
Alvaremj 2013 March 7

I've read that wild and commercial yeast are  both aerobic and anaerobic, can survive with or without oxygen. I keep my starters in plastic containers. There have been plenty of times that a couple hours after feeding the tightly sealed lid pops off. This makes me a little uneasy about storing in glass jars. I really think the only thing that can really kill a good levain is lack of food. 

Good luck

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