A barm is best described as an intermediary step between harvesting the naturally occurring yeasts floating in the air and a proper sourdough starter. To create a barm one needs to begin with a seed culture. These cultures can be purchased online, acquired from friends, or made from scratch using whole grain flours and water. Often people find it reassuring to have a culture that is tried and true, but you can have a fully functional and flavorful culture in as little as a month made from scratch.
This post assumes you’ve already got a seed culture in hand and are now nurturing that culture for future loaves of bread. With step one, the seed culture, out of the way we can move on to step two, feeding and maintaining the barm.
The barm is like a pet in that just needs a little love, attention and feeding from time to time. Some people even name theirs. With proper maintenance you can forget about it until a few days prior to making your bread. It can be kept in the fridge where it is mostly dormant for up to three months, or freezer for up to six. It needs to be fed a few times before moving to the third step, being converted into a starter.

This is Mr. Bubbles, from http://twoalmostmavens.blogspot.com
Whenever I plan on making sourdough bread I will feed my barm at least two times, possibly more if it has been in the fridge a long time, before converting it into the starter which gives it an additional feeding. I find that, in addition to being more active, the flavor gets better the more frequently it is fed. In my experience an 8 hour interval is best between feedings, but it is best to judge depending on the activity and size of the barm as variations in temperature can cause wide fluctuations. An easy way to gauge the proper level of fermentation is when the barm has doubled in size, this can happen in as little as four hours. After doubling it is ready to be fed again, or put into the refrigerator for later use.
For example, a barm can be fed three times in one day by feeding at 8am, 4pm and 12am. This would allow for 8 hours of fermentation between feedings and create a very lively and flavorful barm in 24 hours time. At 8am the following day the barm would be properly fermented and could be stored in the fridge and remain active for up to three days before being converted into a starter.
I use the following maintenance ratio by weight:
- 4 parts starter
- 9 parts water
- 12 parts flour
This is a very wet, 75% hydration, barm. It is later converted in to a drier starter, which helps to create a more rounded, buttery flavor in finished loaves. But in the barm state a wetter consistency helps create a more lively product.
In attempting to minimize the amount of waste in maintaining my barm I like to keep it at a bare minimum. I keep 155 grams of it in my fridge, with a backup in the freezer in case anything goes wrong. Of those 155 grams, the following is the breakdown:
- 25g barm
- 55g water
- 75g bread flour
Simply reserve 25 grams of the last batch of barm, combine with water and flour and stir until combined into a shaggy mass. Knead for two minutes, place in a lightly oiled bowl and ferment for 4-8 hours.
This adheres roughly to the 4:9:12 ratio previously mentioned. The numbers don’t have to be exact, but they should be close. I use grams as they are the most precise method for measuring and also the easiest for such small amounts.
Every time I feed this barm I take 25 grams of the last batch to build upon and throw away 120 grams or roughly 75% of it, which is why I like to keep it at a minimum. Of course through careful planning you can simply build the barm up and utilize every bit of it to create your starter, saving a small amount of course for later use.








This pie is delicious. I know this is after blueberry season and the end of cranberry season, but just keep this in your records. It’s really delicious. You’ll love it and the color is absolutely beautiful! It’s tart and sweet at the same time. Try it!!!!! It’s one of my favorite pie recipes. For the center of the pie, you don’t can make any kind of vent. It doesn’t have to be like that. You can make it a simple circle or whatever. For the crust I was still experimenting with what would look nice as a crust. Obviously the design wasn’t the best, but it still look nice-ish. Be sure to make your crust look as defined as possible.

This is a super simple recipe. Obviously for some reason those are the only recipes I have in my book right now. I will find the other stuff soon. But, anyway… This was the third pumpkin pie I ever made in my life. Not bad for a few tries, huh? The thing about pumpkin pies that people have to understand, is that they tend to expand when being baked and contract when cooling causing the the filling to crack. I was lucky to have no cracks in this pie, but that probably was because it was baked at a lower temperature at my house than it was baked at school. Anyway, I hope you enjoy making this delicious pie!!!!