Preferments doesnt make sense??
I don't really get preferments. Why only ferment a portion of the dough, instead of all of it? It makes a little bit of sense with for example a poolish, because you need to get the right hydration (but even then, I don't get why only ferment like 30%), but a biga? The hydration is within range of normal dough, so why not just let the entire dough ferment for the same amount
Source: thefreshloaf.com