When baking a standard loaf in my Bread Machine, the top of the loaf seemed to collapse back in at some point, and instead of coming out with a nice rounded top, it looks like this:

Flat top

I've tried:

  • More yeast
  • Mixing in some self raising flour
  • 2 tsp Lemon Juice
  • Avoiding the timer settings
  • Chopping butter into really small pieces

The standard setting is a four hour bake, the machine is windowless so I can't tell if a particular stage is at fault. The bread is still edible and tastes fine.

The recipe is the most basic from the book that came with the machine

3/4 tsp yeast
400g strong white flour
1 tsp sugar
15g butter
1 tsp salt
280ml water

  • 1
    My mother makes a lot of different recipes in her bread machine. Almost all of them come out like this, with a flat or indented top. I always assumed that was just normal for bread machine bread. If it turns out there's a solution, I look forward to learning it!
    – csk
    May 18, 2021 at 18:37
  • 3
    Have you ever tried to decrease the amount of yeast?
    – Stephie
    May 18, 2021 at 20:15
  • 1
    Normally I'd say that was a result of over-rising. How long is the rising cycle for the baking, and what's the temperature in your home?
    – FuzzyChef
    May 18, 2021 at 20:41
  • @FuzzyChef the rising cycle is 1h50 according to the book. House temp usually around 20C.
    – Jontia
    May 19, 2021 at 5:53
  • Huh, odd then ... I wouldn't expect over-rising with that recipe.
    – FuzzyChef
    May 19, 2021 at 16:30

2 Answers 2


I was about to ask in a comment as to where in the world you were, as there are a few factors that can play into this. However I spied packages in the background and with a bit of sleuthing deduced that you bought Allinsons products, probably from Tesco and were hence likely in the UK, so high altitude isn't likely to be one of your problems.

I bake pretty much all my bread in a bread machine, mostly because I was living somewhere where bread was terrible in taste and texture, but have continued since moving away from there.

I find that bread machine recipes tend to be a little off how the recipes work. This might be something as simple as different flour brands used or the fact that tests are done in controlled conditions in labs with stable temperature and humidity.

The problems that cause bread to collapse like this generally fall into 4 categories

  1. Too much water/too little flour
  2. Additive missing
  3. Too much yeast
  4. Machine timing issues

1 and 3 are fairly self explanatory. My first guess would be water:flour ratio. Too much water (or too little flour) results in dough that is too wet and ends up in a more open texture. Your recipe has a hydration of 70% (280/400 *100). This is at the upper end of what you would want to use in a bread machine. For comparison, I use a recipe that has 300 ml water with 480 ml flour (62.5%). As a general rule you want 60-65% water for an all-purpose loaf.

Too much yeast will cause the bread to rise too fast and become too open, leading to collapse. Your recipe looks like the right amount.

I have come across a problem, in countries where the flour is not bleached, that you need to add some "bread improver", which is just some vitamin C and a bit of soy lecithin. I surmise the following is happening, but have no certainty on this: Without the improver the dough tends to rise slowly once the yeast has used up the added/free sugars in the flour - so the second rise fails to work well, leaving the heating from the cooking expanding the few bubbles remaining after knock-down too much, so the bread then collapses. If you are buying "bread machine" specific yeast it may have added improver already (if the UK needs it). You can tell this is the case as it will look like a mix of flour-like substance (improver) with small cylindrical granules (yeast). Plain yeast is a just the granules.

I find that bread machines (at least my one) don't knock down the dough properly or have a long second rise, which results in the upper part of the loaf being more open than I would like. I think this is a function of the timing of the rises, with the second rise being too long (or the element heating too slowly), so the loaves tend to rise, then collapse as there are too many bubbles in the dough.

  • This sounds fantastic, thank you. Yes you've spotted we're in the UK correctly and so I hope we don't have a high altitude problem. I don't think the yeast I'm using has any improver in it, but the package is long gone after not holding together well and the content is just in a jar. I should probably save the tick until at least trying out these ideas, but this gives me more things to try at the very least.
    – Jontia
    May 19, 2021 at 8:01
  • Less yeast appears to be the way forward. But reducing water at the same time leads looks like it might be a little bit better still.
    – Jontia
    May 22, 2021 at 16:14

It's going to be very difficult to answer this exactly without more information, you need to open the lid at different times in the process and see when it collapses as that will tell you much more. If you cannot try that then here's some general advice. First would be not to add lemon juice.

From my own experience with bread machines I've found that they rarely get it right without experimentation. By far the most common problem is over-proofing, which can cause exactly the kind of problem you are having, and the most successful way to control this is to reduce the yeast in the recipe so there's a bit less activity. Try adding 1/2 tsp instead of 3/4, or even less for a batch and see if that helps.

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