mirror of
https://github.com/hendricius/the-sourdough-framework
synced 2026-03-05 11:37:16 -06:00
Merge 53c4c32acd into d6c862eea4
This commit is contained in:
@@ -1,6 +1,15 @@
|
||||
\chapter{Making a sourdough starter}%
|
||||
\label{chapter:sourdough-starter}
|
||||
\begin{quoting}
|
||||
|
||||
\begin{figure}[!htb]
|
||||
\centering
|
||||
\includegraphics[width=\textwidth]{sourdough-starter-activity-indicators}
|
||||
\caption[Very active sourdough]{A very active sourdough starter shown by the
|
||||
bubbles in the dough.}%
|
||||
\label{fig:sourdough-starter}
|
||||
\end{figure}
|
||||
|
||||
In this chapter you will learn how to make your
|
||||
own sourdough starter, but before doing so you will
|
||||
quickly learn about baker's math. Don't worry,
|
||||
@@ -12,6 +21,8 @@ your starter's readiness, as well as
|
||||
how to prepare your starter for long-term storage.
|
||||
\end{quoting}
|
||||
|
||||
\iffalse
|
||||
|
||||
\section{Baker's math}%
|
||||
\label{section:bakers-math}
|
||||
|
||||
@@ -80,20 +91,23 @@ hungry family arrives. You are tasked with making pasta
|
||||
for \num{20} people. How would you calculate the amount of sauce
|
||||
you need? You go to the internet and check a recipe and then
|
||||
are completely lost when trying to scale it up.
|
||||
\fi
|
||||
|
||||
\section{The process of making a starter}
|
||||
|
||||
\begin{figure}[!htb]
|
||||
\centering
|
||||
\includegraphics[width=\textwidth]{sourdough-starter-activity-indicators}
|
||||
\caption[Very active sourdough]{A very active sourdough starter shown by the
|
||||
bubbles in the dough.}%
|
||||
\label{fig:sourdough-starter}
|
||||
\end{figure}
|
||||
|
||||
Making a sourdough starter is very easy, all you need
|
||||
is a little bit of patience. It is in fact so easy that it can be summarized
|
||||
in a simple flowchart~\ref{fig:sourdough-starter-process} The flour you should
|
||||
in a simple flowchart~\ref{fig:sourdough-starter-process}.
|
||||
|
||||
\begin{flowchart}[!htb]
|
||||
\centering
|
||||
\input{figures/fig-starter-process.tex}
|
||||
\caption[The full sourdough starter process]{The process of making a sourdough
|
||||
starter from scratch.}%
|
||||
\label{fig:sourdough-starter-process}
|
||||
\end{flowchart}
|
||||
|
||||
The flour you should
|
||||
use to bootstrap your starter is ideally a whole flour.
|
||||
You could use whole-wheat, whole-rye, whole-spelt or
|
||||
any other flour you have. In fact gluten free flours such
|
||||
@@ -131,14 +145,6 @@ not airtight. You still want some gas exchange to be possible.
|
||||
I~like to use a glass and place another
|
||||
inverted one on top.
|
||||
|
||||
\begin{flowchart}[!htb]
|
||||
\centering
|
||||
\input{figures/fig-starter-process.tex}
|
||||
\caption[The full sourdough starter process]{The process of making a sourdough
|
||||
starter from scratch.}%
|
||||
\label{fig:sourdough-starter-process}
|
||||
\end{flowchart}
|
||||
|
||||
Now an epic battle begins. In one study~\cite{yeasts+biocontrol+agent}
|
||||
scientists have identified more than \num{150}~different yeast species living
|
||||
on a single leaf of a plant.
|
||||
@@ -147,6 +153,20 @@ the upper hand in this battle. Other pathogens such as mold
|
||||
are also being activated as we added water. Only the strongest
|
||||
most adaptable microorganisms will survive.
|
||||
|
||||
\begin{figure}[!htb]
|
||||
\includegraphics[width=\textwidth]{sourdough-starter-microbial-war}
|
||||
\caption[Microbial warfare during sourdough early days]{A simple
|
||||
visualization of the microbial warfare that happens during the making of
|
||||
a sourdough starter. The wild spores on the plant and flour become
|
||||
activated the moment flour and water is mixed. Only the most adapted
|
||||
flour-fermenting microbes will survive. Because of unwanted microbial
|
||||
fermentation it is advised to discard the feeding-leftovers of the first
|
||||
days. The surviving yeast and bacteria continuously try to outcompete
|
||||
each other for resources. New microbes have a hard time entering the
|
||||
starter and are eliminated.}%
|
||||
\label{fig:sourdough-starter-microbial-war}
|
||||
\end{figure}
|
||||
|
||||
By adding water to the
|
||||
flour the starches start to degrade. The seedling tries to
|
||||
sprout but it no longer can. Essential for this process is the
|
||||
@@ -188,20 +208,6 @@ days my new starter seems to be quite alive already. This might
|
||||
be due to previous contamination of flour fermenting microbes in
|
||||
my kitchen.
|
||||
|
||||
\begin{figure}[!htb]
|
||||
\includegraphics[width=\textwidth]{sourdough-starter-microbial-war}
|
||||
\caption[Microbial warfare during sourdough early days]{A simple
|
||||
visualization of the microbial warfare that happens during the making of
|
||||
a sourdough starter. The wild spores on the plant and flour become
|
||||
activated the moment flour and water is mixed. Only the most adapted
|
||||
flour-fermenting microbes will survive. Because of unwanted microbial
|
||||
fermentation it is advised to discard the feeding-leftovers of the first
|
||||
days. The surviving yeast and bacteria continuously try to outcompete
|
||||
each other for resources. New microbes have a hard time entering the
|
||||
starter and are eliminated.}%
|
||||
\label{fig:sourdough-starter-microbial-war}
|
||||
\end{figure}
|
||||
|
||||
Wait for around 24~hours and observe what happens to your starter.
|
||||
You might see some early signs of fermentation already. Use your nose
|
||||
to smell the dough. Look for bubbles in the dough. Your dough
|
||||
|
||||
Reference in New Issue
Block a user