Results

I waited 2 days after my experiment to check on the mould and see what had happened. There hasn't really been any real distinguishment, but I saw that the parts where the vinegar had touched there appeared to be some sort of white covering on the mould. I think that's a different type of mould that's grown on top of the main area. Anyways here are the photos:

Results of bag A:

Results of bag B:

Results of bag C:

Judging from the bags of mould that I'm looking at right now cos the photos aren't too reliable, it seems that bag B has been the most effective. Where the rice vinegar has touched the mould, a little patch of pale pink has grown on the mould and is almost the original colour of the bread. Bag C seems to be the second most effective. A pale pink patch where the mould was had grown, but the pink colour isn't as evident as it is in bag B. This might be due to the red colouring used in rice vinegar. Bag A, the bag with the brown vinegar, seemed to be the least effective. A pale yellow covering had grown on the mould but it didn't seem to have killed the mould as effectively as the other two vinegars had.

Therefore I can conclude that rice vinegar was the most effective in killing bread mould and that it has the highest concentration of acetic acid out of rice vinegar, white vinegar and brown vinegar.