The value of bread

An interesting thought occurred to me the other day... how much is good bread worth? We buy sandwich bread for $3.99 at the grocery store, yet here is a rough breakdown of how much home-made bread costs:

Ingredient	Measure	Purchase Weight	Purchase Cost	Cost per Gram	Per Loaf Cost
Salt	15	737	$1.00	$0.0014	$0.02
Buckwheat Flour	10	907	$3.28	$0.0036	$0.04
All-Purpose Flour	50	4536	$5.79	$0.0013	$0.06
White Whole Weat Flour	50	2268	$5.49	$0.0024	$0.12
Bread Flour	340	2268	$5.49	$0.0024	$0.82
Water	325	3780	$1.00	$0.0003	$0.09
Sourdough Flour (AP)	50	4536	$5.79	$0.0013	$0.06
Sourdough Water	50	3780	$1.00	$0.0003	$0.01
					$1.23

So the costs of the ingredients is clearly less than the store-bought bread, but what about the actual baking? My Kennmore 96413 is rated at 10 - 13.5 kW. Running at 450 degrees I'm going to assume I'm using 13 kW of juice, though the insulation on this oven is incredibly efficient so I don't think it's pulling the full load for my entire bake cycle. Power in our area goes for 7 - 9 cents per kWh, so at the worst case scenario I'm probably using $0.18 of electricty, bringing the grand total up to $1.41.

I don't drink coffee, but I'm fairly sure that's less than your average cup of joe.

-Matt the weekend baker

Sourdough Starter Troubles (Chlorine & Chloramine)

So to my great surprise the sourdough starter I have been faithfully using for over a year has recently gone 'flat'. I will feed it per my usual schedule and it does rise, but it doesn't "bounce" to it's normal doubling.

As any good baker will know, a starter will show vigorous activity within the first hour and should double within 4-8 hours depending on the ratio of starter to water/flour it was fed.

I had a real mystery on my hands so I decided to try and figure out what happened. After a few experiments I narrowed the suspects down to temperature & water. I was able to eliminate the temperature variable by trying a cultivation in a stable tempature area with no sunlight (to minimize variations), so that just left water. I had been using the same tap water for over a year, but obviously something changed.

Our tap water is moderately hard, but normally calcium does not affect sourdough starters. Though my hypothesis was that maybe our local water municipality changed the percentage of chlorine in the water.

I tested this theory out by cultivating a new starter from some preserved starter I had saved for an emergency (more on that in another post). I cultivated this new starter with only bottled water. It was a bit more expensive than tap water but after a week it seemed to be showing strong results.

To double-verify my results I did one feeding of the new starter with tap water, and it had disastrous results. It killed a good portion of the starter.

While I was pleased that my hypothesis was confirmed I was still baffled at why tap water would suddenly become so hostile. It turns out that the water municipality had changed from Chlorine to Chloramine (which is a derivative, and more stable).

A quick check on Google confirmed this: http://www.sourdoughhome.com/startingastarter.html

Sourdough by it's nature is a hardy bacteria that can survive all sorts of different environments, but when it encounters chemicals that are anti-bacterial in nature it makes it hard to grow the way it should.

It looks like it's time to start experimenting with dechlorination, or I'll just buy bottled water by the jug.

All this trouble hasn't stopped me from baking 2-3 loaves per weekend, even with a semi-flat stater. Nothing can come between a baker and his bread.

-Matt the weekend baker.

Measuring Ingredients

When you bake a few loaves you will start to realize the variables involved with baking. Time, temperature, humidity, weight, density, yeast concentration, water impurities, salt and water %.

One of the biggest variables in creating a good loaf is the percentage of water to flour. This percentage should be in the 65%-85% range.

As one of my favorite publications (Cooks Illustrated) published: Almost No-Knead Bread which is only the recipe, but the accompanying article described that going closer to the 65% water percentage actually helps with the no-knead recipes.

I find the best way to maintain this percentage is to weigh my ingredients vs measuring them. The best example of this is demonstrated in the picture below.



There are two cups of flour that look identical, but one is compacted and weighs 135 grams and the other weighs 180 grams. The 45 gram difference comes from the density of the flour.

I recommend weighing your ingredients for the most accurate baking results. If you don't have a scale handy, at least aerate your flour before use!

-Matt the Weekend Baker

Sourdough Starters

A good friend asked me why my current sourdough isn't a patch on the first sourdough loaf I baked years ago. I explained it was because my original starter was a local wild variety, which did taste good but seemed to be lacking in its ability to double a loaf effectively.

Sourdough yeast isn't something you can just go down to your local supermarket and buy, it's something you have to grow and cultivate. That seems to scare most people away from giving it a try.

The internet has introduced a whole range of options for the hobbyist baker. If you simply Google "Sourdough Starter" you will see a wide range of options.

From the free Oregon Trail Sourdough

To the world traveling collection.

The King Arthur Flour variety.

I picked up mine from www.sourdoughbreads.com.



If you are adventurous and want to try your own here are a few sites to explore:
http://www.breadtopia.com/make-your-own-sourdough-starter/
http://www.thefreshloaf.com/node/233
A short video: http://www.youtube.com/watch?v=cusjbAtGzvg

Remember - once you have a sourdough starter you must feed it to keep it alive. You can hibernate it in your refrigerator, but you have to take it out a few days ahead of when you want to use it again.

-Matt the Weekend Baker