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Monitoring the Fermentation of Sourdough Starter with Computer Vision

justinmklam.com

21–28 of 28 posts

Re: Monitoring the Fermentation of Sourdough Starter with Computer Vision

#21
post #19
post #17

Earlier quoted context omitted.

Does that make much difference? In my experience, the cost of cheese is by far the biggest determining factor in overall cost.

From my calculations, it tripled to cost of a loaf (which granted wasn't overly expensive). I really have no reason to do it any quicker though since I know when I'm about to run out of bread/bagels.

Why not use a little dough from the previous batch, removing straight yeast all together?

Re: Monitoring the Fermentation of Sourdough Starter with Computer Vision

#22

I wonder if adding an I2C CO2 monitor might not also provide some insight into how active the starter is - it could be overkill, though, if CV is already doing a good job.

There's a few MQ sensors[1] that would probably work well for something like this. Sensors like the MQ-3[2] are sensitive to alcohol, which could be used to help minimize hooching[3].

There's a great blog post[4] about using MQ sensors for "machine olfaction" to monitor things a human would normally smell with their nose. Definitely worth checking out!

[1]https://playground.arduino.cc/Main/MQGasSensors

[2]https://www.sparkfun.com/datasheets/Sensors/MQ-3.pdf

[3]https://www.sourdoughhome.com/index.php?content=hooch

[4]http://www.maskau.dk/projects/electronic-nose

Re: Monitoring the Fermentation of Sourdough Starter with Computer Vision

#24

Reminds me of "Sourdough", a novel about a software engineer who becomes a baker: https://www.goodreads.com/book/show/33916024-sourdough

Another poster in this thread was reminded of this book, about 3 hours earlier: https://news.ycombinator.com/item?id=17397791

Re: Monitoring the Fermentation of Sourdough Starter with Computer Vision

#25

This seems like an appropriate place to plug Sourdough: A Novel, by Robin Sloan (who also wrote Mr. Penumbra’s 24-Hour Bookstore). It's a really delightful read that lovingly satirizes many aspects of San Francisco's contemporary culture while telling the story of a coder turned baker who is on a mission to teach robotic arms to bake bread.

I came here to say the same thing! Its a great read. Alsothe author runs a nice (infrequent) newsletter which occasionally features some interesting machine learning topics

Re: Monitoring the Fermentation of Sourdough Starter with Computer Vision

#26
post #11

There's nothing arduous about bread making when you use a slow rise. I make bread and pizza dough and bagels several times a week, for couple reasons: a. it's bloody cheap, b. it's damn easy for how good it is. The process is literally stir the ingredients together and put a lid on it for about a day. 8 bagels, 3 pizzas, or a nice loaf of sourdough cost about 27 cents total. Just go down to your local library and get…

I'm not as prolific as you are, but I bake fairly regularly, and its the perfect hobby for me. Nice and relaxed, with a tasty outcome.

While I haven't read it myself, on /r/breadit there's also a lot of love for 'Flour Water Salt Yeast' as well.

Re: Monitoring the Fermentation of Sourdough Starter with Computer Vision

#27
post #14

Earlier quoted context omitted.

A day seems long? I’ve not noticed any appreciable difference past 3 hours. Curious as to why you leave it this long...

Personally notice a big taste difference, but even if that wasn't there, it's cheaper since you use significantly less yeast.

Does the type/quality of yeast make a difference? Maybe I just need to buy better yeast...

Re: Monitoring the Fermentation of Sourdough Starter with Computer Vision

#28
post #14

Earlier quoted context omitted.

Personally notice a big taste difference, but even if that wasn't there, it's cheaper since you use significantly less yeast.

Does the type/quality of yeast make a difference? Maybe I just need to buy better yeast...

The dry active yeast I use is just what I get from costco for very cheap. Lately I've got a good sourdough start going on (just got some from the local bakery and have kept it going). It's a bit more finicky in how long you can let it rise for, but I like the taste better.
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