[Ag-eq] Taming wild yeasties

Aaron Cannon cannona at fireantproductions.com
Sat Dec 15 00:02:59 UTC 2018


My wife and I have been making sourdough for years, and we love it! Unfortunately, the reality is that there is a lot of bad advice that's been passed down through the years that just isn't true. One of the biggest misconceptions is that you can help jumpstart your starter by adding yeast from other sources, such as grapes, leaves or other things. I've even heard of an old guy who swore that he kept his starter very healthy by spitting in it every so often. :) The truth is that there are hundreds of thousands of types of yeast, and you are only interested in a very few kinds. Namely, you want the ones that are adapted to living on wheat. You're also looking for lactobacilli, which is a type of bacteria that consumes the dead yeast, and produces lactic acid. These acids are what give your bread the sour flavor, and that also act as a type of antibiotic, to keep your culture from being invaded by less desirable microorganisms, such as mold and such. Anyway, the best place to find this type of bacteria and yeast is on the plants they are adapted for, I.E. wheat/flour.

They did a study a while back, where they heated the flour to kill off all the yeast on it. They wanted to see if the yeast in sourdough starter were caught from the air, or already found on the grain. The result was that they were unable to get a starter started from the staralized flour, but feeding that already staralized flour to an existing starter showed no ill effects.

I'd be happy to mail you some of our starter. It can sometimes be easier to start out with an established starter, and then try creating your own, once you know what healthy starter smells/feels like.

Can you tell me more about the process you used to create your own starter? Perhaps I can offer some tips.

Once you get a starter going, unless you plan to make bread with it often, you should probably keep it in the fridge. Keeping it on the counter requires at least daily feedings, whereas with starter kept in the fridge, you are fine with once every week or two.

Good luck. Sourdough is amazing!

Aaron

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> On Dec 14, 2018, at 14:06, dogwood farm via Ag-eq <ag-eq at nfbnet.org> wrote:
> 
> Tracy,
> 
> I don't know much about wild yeast except when it comes to fruit wines
> and some beers that are brewed in Germany.  However, reference yeast
> starters for breads, you need to put your starter in a warm place and
> covered.  Matt puts his starter in a container with an airtight lid.
> This traps the heat from the yeast as it firments and that also helps
> keep it warm.  His starters, which have different names depending on
> the process and what kind of bread he is making.
> 
> Susan
> dogwoodfarm62 at gmail.com
> 
>> On 12/14/18, Tracy Carcione via Ag-eq <ag-eq at nfbnet.org> wrote:
>> I'm having some fun, running experiments in microbiology, aka creating my
>> own sourdough starter, trying to convince wild yeasts to come play with me.
>> 
>> I have a guidebook, The Sullivan Street Bakery cookbook.  It describes well
>> how the starter should smell and taste when it's ready to use.  I thought
>> mine could be ready to go, but it didn't actually leaven, so I added some
>> store-bought yeast and made bread anyway.  Even so, it added a nice taste
>> to
>> the bread.
>> 
>> The book says that, when the yeasts have done their thing, there will be a
>> foamy residue of flour on the side of the jar.  I thought I could feel
>> that,
>> but maybe I'm mistaken.
>> 
>> The book also says that I could catch more yeast by getting some off leaves
>> in the garden, like kale or cabbage leaves.  It says the yeast is a
>> powdery,
>> water-resistant layer on the underside of a leaf, but I'm not sure how to
>> tell that from dirt or whatever.  Not to mention that most of my leaves
>> have
>> now frozen.  I'm sure the cold isn't helping my experiments, even inside.
>> 
>> However, it's a small investment in time and flour, so I'll keep carrying
>> on.  According to the book, I can create a starter that is to my taste, and
>> not as sour and sharp as the stuff sold commercially.
>> 
>> Tracy
>> 
>> 
>> 
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