Friday, February 1, 2019

Why Won't My Dough Rise?!

My last two batches of bread haven't risen.  Like, at all.

I finally decided to spend a little time figuring out what's going on, and it turns out, it all comes down to temperature (at least it did for me).

There are quite a few reasons why dough might not rise (dead yeast, other ingredients killing or impeding the yeast's ability to work properly, etc.), but temperature is probably the most common issue.

I knew temperature mattered, but what I didn't realize was just how small the window for error is.

I run hot, so I tend to keep my house pretty cool, especially in the winter (when baking is more fun).  I also consider myself way more of a "cook" than a "baker."  As such, I'm used to winging it, shooting from the hip, improvising, experimenting, and being altogether way more reckless than is acceptable with baking, where apparently you have to stick to the rules a little (or a lot) more.

I've got an insanely delicious Oatmeal Bread recipe from my mom/aunt that reminds me of childhood and all things good in this world.  The recipe says you should put a package of yeast in 3/4 cups of lukewarm water with 1/16 teaspoon of sugar and 1/16 teaspoon of ginger.  There are two problems with this.  1. "Lukewarm" can be quite different from one person to another.  2. Ginger is actually an anti-fungal, and yeast belongs to the fungus family!

I wonder if the pinch of ginger is to keep the dough from going crazy.  A kitchen that is in constant use is warm or even hot, and my mom and aunt's kitchens were certainly that way.  So maybe they needed something to actually keep the yeast in check.  My 64 degree kitchen doesn't need any help.  It will keep yeast from "doing its thing" on its own.

And then there's this idea of  "lukewarm."  In my research, people suggested yeast should proof anywhere from 70 on the low end, to 105 on the high end.  I think the window is even more narrow.  I decided to experiment with temps, by placing yeast and sugar into some water at "room temperature" (my room temperature) and then bringing the temp up slowly to see where the yeast started to get happy.  Sure enough, even though I was starting out with warm water, by the time it hit the (cold) pyrex measuring cup and I added yeast to it, it was sub 70.  I placed my thermometer in the pyrex measuring cup and then placed the measuring cup in a bowl and began to incrementally add water from my instant-hot tap.  I was surprised to see that even around 75 degrees, not much was happening.  80 was better, but it wasn't until around 90 that things really started to happen.  So from now on, I will be sure that my yeast water is at 90 degrees.

The other thing I have to worry about in my cold kitchen is the temperature of the mixing bowl.  I didn't think that would make much of a difference (thinking it would only drop the dough's temperature a tiny bit), but I was wrong.  From now on I will be warming the bowl with hot water and then keeping it in an oven set for proofing.

The final element of fixing my dough-rise problems is actually using the oven to "proof" (placing the kneaded dough in an oven set at a relatively low temperature specifically for rising).  I had been doing this already, but not really paying much attention to getting the oven warm enough or keeping it there.

 

If you don't have an oven that does well for proofing, there are a couple of tricks you can try.  My oven doesn't really start keeping temperature until it's around 125 degrees, which is a bit too high.  Therefore, I set the oven as low as I can to where it will kick on and off (you can watch the indicator light or listen for the "click"), and then I just keep the door open a bit.  This will cause a greater fluctuation in temperature, so to combat that, I simply placed a couple of my iron skillets on the bottom rack to assist with keeping the temperature constant (the skillets act as heat sinks).  I used my thermometer to monitor things, and I'm able to keep the oven interior at about 100 degrees, which seems perfect to me.


Finally, and especially with the door cracked open, you will want to add an element to keep the rising dough's atmosphere moist.  A lot of people place a damp towel over the bowl, and while that helps a bit, I have started placing a shallow pan of hot water on the bottom rack where the iron skillets are hanging out.  Not only that, but I leave the water there when baking the bread, and I've found it really helps with the consistency and texture of the bread!

 

So that's it.  If you're having trouble getting your bread to rise, and you know your yeast isn't dead, chances are things aren't warm enough!
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Saturday, January 19, 2019

PluralEyes Trouble Syncing Continuous Footage (splitting media into mutliple tracks for sync)

I have been working on a project where we shot a week of live performances running anywhere from 4 to 9 cameras with two dedicated audio recorders each night.  Before a program like Red Giant PluralEyes, this would have been a NIGHTMARE to organize and sync.

That said, it's still a bit of a nightmare.

One thing I've run into that I wanted to document for others but also for my own future reference is the difficulty PluralEyes has with syncing audio when the clips are butted up against one another.  In other words, with footage that has been recorded by a camera that records continuously but splits the footage up into multiple clips (we used some Sony AX100's and CX900's as "safety cams"), PluralEyes often freaks out.  As you're sitting there watching the sync, it looks like all is well.  All the clips are turning green and the arrows are lining up, but then at the last second... all the clips spread out and a good number of them turn red.

I've found a work around that isn't too terribly painful.  You just need to find the offending media and break it up into two tracks where you load every other clip.  For instance, all the footage from one of the Sony AX100's is placed into two bins, AX100 01 and AX100 02.  Then I place every other clip starting with the odd numbers in the "01" bin, and then every other clip starting with even numbers in the "02" bin.  This seems to make PluralEyes happier.

At first I was using the "Add takes in new bins (one file per bin)" button, but that becomes a nightmare to organize once you import the files into Premiere (so. many. tracks.).

So now, once I export my XML file from PluralEyes and then import it into Premiere, there are only two tracks for each "problem" camera, instead of a track for every clip from the offending cameras.