Im not sure if this is true and there are different ways of making bread which might be cheaper. I use an oven and a 'no knead' method which means putting the oven on for a very long time.
I think this is costing me more than a loaf of bread might do? Or at least the same
Oven goes on for 40 mins at 240 degrees, then bread goes in for about the same time, perhaps a little more. So nearly 1.5hrs of really high heat.
The ingredients probably dont cost that much, I get the flour and yeast in Aldi.
I think in a breadmaker it must be cheap as chips
Or if you only had the oven on a shorter time for properly made bread.