I make a lot of bread and have done for a few decades, using beadmakers.
Have not bought any kind of loaf in that time.
Regularly through the week make a few batches of baguettes, toasted sesame oil, cottage and half/half white/brown mixed loaves.
Do once a week choose a specialist bread like a focaccia, mixed grain, rye. soar dough, french country, granary, Italian herb and tomato, rolls, naans, pitta etc.
Do also make some cake type options at least once a fortnight like hot cross buns, malt loaves and tea loaves
Apart from the half/half white/brown mixed, malt and tea loaves that is all done in the beadmaker, all the rest is done using the the dough option.
I buy all my strong and brown bread flours from Waitrose and Asda each week, their own branded ones.
Now all through online delivery that I changed to from the beginning of the pandemic and will stay doing.
The Asda strong flours are around 60-70p for both and Waitrose is 80p-£1.00 for both of their own branded.
Have noticed the price has fluctuated up and down at that kind of price for the last few decades or so.
Have never had any trouble getting it, but oddly lately and the order I had last few months and last week from Asda and Waitrose the price has dropped to 60p and 75p.
I know someone who is a city stock exchange buyer for large retailers in the UK and just spoke with him.
He says all our main five main supermarkets own brand flour and most UK bread and plain flour is supplied approx 85-90% from the UK.
We do import specialist flour from Canada, but it will specify that and is only seen to the general public branded as Canadian.
We do import the rest from Germany, that tends to be more the Rye, pasta type and other specialist flour. But two of the newer low end supermarkets do as one is of course German, do source all their flour products from Germany.
Any imports of plain and bread flour to the UK from Germany are through other brands as apart of top-up supply chains.
We do not he said as far as he has been aware for many years imported any flour from Russia.
But flour get puts within a lot of other products, so many European factories may import flour from other sources, mostly Germany, but also France.