Spelling fixes + Improvements

Thanks again to Adam Carter for sending me the suggestions!
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Hendrik Kleinwaechter
2023-05-25 16:07:11 +02:00
parent 17d87c9af2
commit 61c33e4b60

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@@ -10,19 +10,20 @@ amylase and protease enzymes work faster, making more
sugars available and degrading the gluten proteins. sugars available and degrading the gluten proteins.
At around 22°C (72°F) in my kitchen my bulk fermentation is ready At around 22°C (72°F) in my kitchen my bulk fermentation is ready
after around 10 hours. I am using around 20 percent of sourdough after around 10 hours. I use around 20 percent of sourdough
starter based on the flour. In summertime the temperatures starter based on the flour. In summertime the temperatures
in my kitchen sometimes increase to 25°C (77°F). In that case in my kitchen sometimes increase to 25°C (77°F). In that case
I am reducing the sourdough starter to around 10 percent. I reduce the sourdough starter to around 10 percent.
If I didn't do that, my fermentation would be done after If I didn't do that, my fermentation would be done after
around 4-7 hours. The problem is that the dough is quite around 4-7 hours. The problem is that the dough is quite
unstable when fermenting at this high speed. This means unstable when fermenting at this high speed. This means
that you are easily running into issues of over-fermentation. that you easily run into issues of over-fermentation.
Finding the perfect sweet spot between fermenting enough Finding the perfect sweet spot between fermenting enough
and not too much is becoming much harder. Normally you might and not too much becomes much harder. Normally you might
have a time window of 1 hour. But at the rapid speed it have a time window of 1 hour. But at the rapid speed it
might be reduced to a time window of 20 minutes. Now at might be reduced to a time window of 20 minutes. Now at
30°C (86°F), ambient temperature things are much faster. Your bulk 30°C (86°F), everything moves much faster. Your bulk
fermentation might be complete in 2-4 hours when using fermentation might be complete in 2-4 hours when using
10-20 percent starter. Proofing your dough in the fridge 10-20 percent starter. Proofing your dough in the fridge
becomes almost impossible. As your dough cools down in the becomes almost impossible. As your dough cools down in the
@@ -34,7 +35,7 @@ end up overproofing your dough if you leave it overnight
in the fridge. in the fridge.
That's why I recommend that you reduce the amount of starter That's why I recommend that you reduce the amount of starter
that you use in the tropics to something at around 1-5 percent that you use in the tropics to around 1-5 percent
based on the flour. This will slow down the fermentation based on the flour. This will slow down the fermentation
process significantly and provides you a bigger window process significantly and provides you a bigger window
of time. Try to aim for an overall bulk fermentation of at of time. Try to aim for an overall bulk fermentation of at
@@ -42,16 +43,19 @@ least 8-10 hours. Reduce the amount of starter to get there.
When making dough, try to use the same water temperature When making dough, try to use the same water temperature
as your ambient temperature. Assuming that the temperature as your ambient temperature. Assuming that the temperature
will climb to 30°C, try to start your dough directly will climb to 30°C, try to start your dough
with 30°C water. This means that you can carefully rely on with 30°C water. This means that you can carefully rely on
a small fermentation sample that visualizes your fermentation a small fermentation sample (aliquot jar) that visualizes your fermentation
progress. The sample only works reliably if your dough temperature progress. To read more about this technique refer
to section \ref{section:bulk-fermentation}.
The sample only works reliably if your dough temperature
is equal to your ambient temperature. Else the sample heats is equal to your ambient temperature. Else the sample heats
up or cools down faster. So tread carefully when using up or cools down faster. So tread carefully when using
the sample in this case. It's always better to stop the sample in this case. It's always better to stop
the fermentation a little too early rather than too late. the fermentation a little too early rather than too late.
Stretch and folds during the bulk fermentation Stretch and folds during the bulk fermentation
will help you to develop a better look and feel for will help you to develop a better feel for
the dough. An expensive but possibly useful tool the dough. An expensive but possibly useful tool
could be a pH meter that allows you to perfectly could be a pH meter that allows you to perfectly
measure how much acidity has been created by the measure how much acidity has been created by the
@@ -74,17 +78,17 @@ great oven spring when making wheat based doughs. When
starting with this hobby I always wondered why my rye starting with this hobby I always wondered why my rye
breads would turn out so flat. Yes, rye has gluten, but breads would turn out so flat. Yes, rye has gluten, but
small particles called {\it hemicelluloses} (arabinoxylan and beta-glucan) \cite{rye-defects}. small particles called {\it hemicelluloses} (arabinoxylan and beta-glucan) \cite{rye-defects}.
prevent the dough from developing a gluten network like you can prevent the dough from developing a gluten network it can
do with wheat. Your efforts are in vain, and your dough will with wheat. Your efforts will be in vain, and your dough will
stay flat. Only spelt- and wheat-based doughs have the capability stay flat. Only spelt- and wheat-based doughs have the capability
to retain the \ch{CO2} created by the fermentation. of retaining the \ch{CO2} created by the fermentation.
In most cases something is probably off with your In most cases something is probably off with your
sourdough starter. This very often happens when the starter sourdough starter. This very often happens when the starter
is still relatively young and hasn't yet matured is still relatively young and isn't as capable of
at fermenting flour. Over time your sourdough fermenting flour. Over time your sourdough
starter is going to become better and better at fermenting starter is going to become better and better.
flour. Keep your sourdough starter at room temperature Keep your sourdough starter at room temperature
and then apply daily feedings with a 1:5:5 ratio. and then apply daily feedings with a 1:5:5 ratio.
This would be 1 part old starter, 5 parts flour, This would be 1 part old starter, 5 parts flour,
5 parts water. This allows you to achieve a better 5 parts water. This allows you to achieve a better
@@ -139,9 +143,11 @@ experience, most of my pure rye starters produced stronger acetic
notes. Chemically, the acetic acid isn't as sour, but when tasting notes. Chemically, the acetic acid isn't as sour, but when tasting
it will seem more sour. Make sure to use a starter that is at it will seem more sour. Make sure to use a starter that is at
a hydration of around 100 percent. Acetic acid production a hydration of around 100 percent. Acetic acid production
requires oxygen. A too-liquid starter tends to favor lactic requires oxygen. A starter that is too liquid tends to favor lactic
acid production because the flour is submerged in water, no acid production because the flour is submerged in water. By submerging
oxygen can reach the fermentation after a while. the dough very little oxygen can pass through the water to the fermenting flour.
Because of this, only very little acetic acid can be produced. Over
time the acetic acid-producing bacteria will perish from your starter.
\begin{figure}[!htb] \begin{figure}[!htb]
\includegraphics[width=\textwidth]{parbaked-bread.jpg} \includegraphics[width=\textwidth]{parbaked-bread.jpg}
@@ -157,8 +163,8 @@ to customers. Once you receive it, you just bake it again
for another 20-30 minutes to achieve the desired crust and for another 20-30 minutes to achieve the desired crust and
then you can eat it. Some of the customers reported a very sour then you can eat it. Some of the customers reported a very sour
tasting bread. After investigating a bit more, it became tasting bread. After investigating a bit more, it became
crystal clear. By baking the bread twice you don't boil crystal clear. By baking the bread twice you don't boil off
as much of the acid during the baking process. Water as much acid during the baking process. Water
evaporates at around 100°C (212°F) while acetic acid boils at evaporates at around 100°C (212°F) while acetic acid boils at
118°C (244°F) and lactic acid at 122°C (252°F). After baking for 30 minutes 118°C (244°F) and lactic acid at 122°C (252°F). After baking for 30 minutes
at around 230°C (446°F) some of the water has started to evaporate, at around 230°C (446°F) some of the water has started to evaporate,
@@ -175,9 +181,13 @@ exceed the 118°C required to boil the acid. Overall, your
bread will be more sour. The enhanced acidity also helps bread will be more sour. The enhanced acidity also helps
to prevent pathogens from entering your bread. The bread to prevent pathogens from entering your bread. The bread
will be good for a longer period of time. That's why will be good for a longer period of time. That's why
the concept of a delivery works well with sour sourdough bread. the concept of a delivery bakery works well with tangy sourdough bread.
In my experiments the bread stayed good for up to a week In my own experiments, the bread stayed good for up to a week
in a plastic bag. in a plastic bag. This is much longer than a yeast-based dough that might
mold after just a few days. \footnote{Some of my first test customers however
reported that the bread was overly sour and not pleasant to eat at all.
When this happens to you, consider toasting the bread. Toasting
will boil off additional acidity.}
\section{My bread is too sour} \section{My bread is too sour}
@@ -199,17 +209,18 @@ once per day at room temperature. This way you shift
the tides of your starter towards a better yeast fermentation \cite*{more+active+starter}. the tides of your starter towards a better yeast fermentation \cite*{more+active+starter}.
To shift the tides even further, a real game changer To shift the tides even further, a real game changer
to me has been to create a stiff sourdough starter. The for me has been to create a stiff sourdough starter. The
stiff sourdough starter is at a hydration of around 50 percent. stiff sourdough starter is at a hydration of around 50 percent.
By doing so your sourdough starter will favor yeast By doing so your sourdough starter will favor yeast
activity a lot more. Your doughs will be more fluffy and will activity a lot more. Your doughs will be more fluffy and less
not as sour for a given volume increase. I tested this sour for a given volume increase. I tested this
by putting condoms over different glass jars. I used by putting balloons over different glass jars. I used
the same amount of flour for each of the samples. the same amount of flour for each of the samples.
I tested a regular starter, a liquid starter and a stiff I tested a regular starter, a liquid starter and a stiff
starter. The stiff starter by far created the most \ch{CO2} starter. The stiff starter by far created the most \ch{CO2}
compared to the other starters. The balloons were inflated compared to the other starters. As a consequence, the stiff
the most. \cite{stiff+starter} starter balloon was inflated the most. \cite{stiff+starter} You can read more
about the topic of stiff starters in section \ref{section:stiff-starter}.
Another unconventional approach could be to add baking Another unconventional approach could be to add baking
powder to your dough. The baking powder neutralizes the powder to your dough. The baking powder neutralizes the
@@ -233,11 +244,11 @@ mold spores. When beginning a sourdough starter, all
the microorganisms start to compete by metabolizing the the microorganisms start to compete by metabolizing the
flour. Mold can sometimes win the race and outcompete flour. Mold can sometimes win the race and outcompete
the natural wild yeast and bacteria. In that case simply the natural wild yeast and bacteria. In that case simply
try cultivating your sourdough starter again. If it molds try cultivating your sourdough starter again. If mold reappears
again, it might be a very moldy batch of flour. Try a different again, it might be a very moldy batch of flour. Try a different
flour to begin your sourdough starter with. flour to begin your sourdough starter with.
Mature sourdough starters should not mold unless the conditions Mature sourdough starters should not go moldy unless the conditions
of the starter change. I have seen mold appearing when the starter is stored of the starter change. I have seen mold appearing when the starter is stored
in the fridge and the surface dried out. It also sometimes forms on the in the fridge and the surface dried out. It also sometimes forms on the
edges of your starter's container, typically in areas where no active edges of your starter's container, typically in areas where no active
@@ -269,7 +280,7 @@ metabolites that inhibit mold growth. \cite{mold+lactic+acid+bacteria}
To pickle your starter, simply take a bit of your existing starter (5 grams for To pickle your starter, simply take a bit of your existing starter (5 grams for
instance). Then feed the mixture with 20g of flour and 100g of water. You have instance). Then feed the mixture with 20g of flour and 100g of water. You have
created a starter a hydration of around 500 percent. Shake the mixture vigorously. created a starter with a hydration of around 500 percent. Shake the mixture vigorously.
After a few hours you should start seeing most of the flour near the bottom After a few hours you should start seeing most of the flour near the bottom
of your container. After a while most of the oxygen from the bottom mixture of your container. After a while most of the oxygen from the bottom mixture
is depleted and anaerobic lactic acid bacteria will start to thrive. Take a is depleted and anaerobic lactic acid bacteria will start to thrive. Take a
@@ -455,15 +466,15 @@ accelerated by my using whole wheat flour. Whole wheat
contains more enzymes than white flour. contains more enzymes than white flour.
To fix this, try to make sure that your sourdough starter is lively To fix this, try to make sure that your sourdough starter is lively
and active. Simply apply a couple of more feedings in advance before and active. Simply apply a couple more feedings before
making your dough. This way your dough becomes ready to shape making your dough. This way your dough becomes ready to shape
before it has completely broken down. before it has completely broken down.
\section{My sourdough starter is too sour} \section{My sourdough starter is too sour}
A too-sour sourdough starter will cause problems during If your sourdough starter is too sour it will cause problems during
the fermentation. Your fermentation will be more on the the fermentation. Your fermentation will have more
bacterial side, rather than the yeast side. This means bacterial activity than yeast activity. This means
you will likely create a more tangy loaf which isn't you will likely create a more tangy loaf which isn't
as fluffy as it could be. The goal is to reach the right as fluffy as it could be. The goal is to reach the right
balance: Fluffy consistency from the yeast and a great, balance: Fluffy consistency from the yeast and a great,
@@ -483,7 +494,7 @@ of 1:5:5 or 1:10:10 can do wonders. In this case you would
take 1 part of starter (10g) and feed it with 50g of flour take 1 part of starter (10g) and feed it with 50g of flour
and 50g of water. This way the microorganisms start and 50g of water. This way the microorganisms start
the fermentation in a greenfield environment. This is the fermentation in a greenfield environment. This is
similar to the 10 percent starter of 20 percent starter similar to the 10 percent starter or 20 percent starter
ratio that you use to make a dough. These days I almost ratio that you use to make a dough. These days I almost
never use a 1:1:1 ratio. This only makes sense when you never use a 1:1:1 ratio. This only makes sense when you
are initially creating your starter. You want a sour are initially creating your starter. You want a sour
@@ -685,7 +696,7 @@ them you can cook the seeds for 10 minutes in hot water. Rinse them with cold
water before adding them to your dough. water before adding them to your dough.
If you want to sweeten the dough, your best option is to add sugar during the If you want to sweeten the dough, your best option is to add sugar during the
shaping stage. Initial sugar is typically fermented and no residual sugar shaping stage. Sugar added too early in the process typically gets fermented until none of it
remains. Adjust your shaping technique a little bit and spread your sugar remains. Adjust your shaping technique a little bit and spread your sugar
mixture over a flattened-out dough. You can then roll the dough together, mixture over a flattened-out dough. You can then roll the dough together,
incorporating layers of sugar. incorporating layers of sugar.