William, Tell

Hi, I have suffered from the same problem for the last 6-7 years or so. I use FG Robert's cottage bread mix, 380ml of water (already gone to 375 ml, 330 gr of breadmix, 1 tsp of grapeseed oil (no cholestrol) 1 tsp vinegar, 2 tsp's yeast.This is as per recipe supplied with breadmix. It rises beautifull, eg over top of pan, bake at 215 deg C for 1 hour, still...