How much should a poolish increase in size?
I am making a bread recipe(White Flour with Poolish), according to Ken Forkish's Flour Water Salt Yeast. In the recipe, he indicates that the poolish should "triple in volume." When I tried making it the poolish increased in volume but not three-fold,; it is bubbly. Is there something wrong? What could possibly be causing this? I am using white wheat flour that has a 10% protein content, should I go for one higher?
The poolish recipe I am using is: 250g white flour, 250g water(27C), and 0.2g instant yeast. It has a 12 hour fermentation period.
Best Answer
A few things that could be going on:
- 0.2 grams of instant yeast is a pretty small amount. Even a little variation in measurement could make a difference in how fast it rises. Also, whether this small amount was well-distributed throughout the flour at the outset could affect the timing of the rise.
- Is the yeast fresh/good? Older yeast can be sluggish.
- How are you measuring whether it "tripled" in volume? Many people put dough in bowls that get wider toward the top, so it can be difficult to measure exactly when something "triples" in volume. Unless you're using a straight-sided beaker or something, or have measurement marks on your bowl, it's possible that something "tripled" in volume while not rising to three times the height.
- Have you monitored the poolish? Did it simply stop rising at some point, or was it still rising at 12 hours? With high-rising preferments, it is also possible that a poolish might rise higher and then fall after some point, collapsing under its own weight. If you weren't monitoring this, you might see evidence like streaks higher on the side of the bowl if this happened.
- If it simply stopped rising at some point, the question of protein content in the flour may be useful to think about. If the flour doesn't have enough protein, it won't hold up a very high structure in a wet preferment. Eventually the bubbles will get large enough that they will simply rise to the top and burst, rather than staying within the dough structure. It's also important to note that higher protein flours can sometimes absorb water better, so if the recipe was designed for "bread flour" or flour with a higher protein content, the moisture level in your poolish could be high enough that it is producing large bursting bubbles rather than holding the air in the dough.
In any case, if the preferment at least doubled in size and/or is very bubbly, I doubt there's anything truly "wrong" and you should go ahead and bake the bread, which will likely turn out fine.
Pictures about "How much should a poolish increase in size?"
Is poolish supposed to rise?
With high-rising preferments, it is also possible that a poolish might rise higher and then fall after some point, collapsing under its own weight. If you weren't monitoring this, you might see evidence like streaks higher on the side of the bowl if this happened.What percentage should poolish be?
Poolish. Poolish is very liquid and has a high level of hydration, with a ratio of 100% flour : 100% water : 0.25% yeast. Usually, poolish is fermented at room temperature, and therefore it can't have high levels of added yeast, or it may over-ferment! Ideal fermentation time for poolish is 15 to 18 hours.What should my poolish look like?
They should look active and alive\u2014the surface of a ripe poolish should be covered in small bubbles, and if you look closely, you may even see one come to the surface (a baker's shooting star?).How much does dough rise?
If your dough is kept at around 80\xb0F, it should take between 1 and 1\xbd hours to rise double in volume.How to Make Poolish for Beginners - Easy \u0026 Fast
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