Plain Loaf

[Boyboy]

Plain loaf keeps sinking after it comes out the oven.

[EDDIE51]

Then you have not cooked it long enough. It should sound 'hollow' when you tap it , if not then it needs longer in the oven. What oven temp are you using? Bread needs a hot oven 200 to 220 deg C.

[Buenchico]

I agree with Eddie. Fully cooked bread can't collapse, as it takes on a degree of rigidity. Cook it for longer!

Further agreement here:
https://answers.yahoo.com/question/index?qid=20080904135557AArzSD3

[MallyJ]

as above and I always ensure that there is a gram more yeast than low sodium salt. I cook my 512 gram flour loaf recipe for nearly an hour on 220C if that helps.