French bread falls after scoring, how can I achieve a tall loaf My neighbor shared her delicious french bread recipe with me.  Her loaves always turn out tall and fluffy.  My loaves fall when I score them and the result is flat, saggy crisp crust bread.  

Things I have tried - keeping my bowl warm, letting it rise a third time after scoring (it's never the same).  

She even came over with her uncooked loaves when mine flattened right before a dinner party.  Guess what?  Hers sagged and flattened and never rose in my oven.  Could it be my oven???
If bread falls after you score it, it's because the bread is overproofed. Basically, the bubbles of carbon dioxide have reached the largest size that the structure of the dough can support and the stress of scoring causes it to collapse.  They key is to either score it earlier and let it continue rising a bit, or to score &amp; bake it earlier (this works great if you have a very hot oven and can find a way to get some steam into it). 

If your neighbor came over with bread and it flattened in your oven, it's possible that hers also overproofed in the time it took to transport it (or the extra jostling of transportation caused them to fall).