MMS forms chlorous acid when you add an acid to it. The best way to use this is as a dip bath for your food. This will prevent you from getting E coli in the first place.
MMS is 22.4% sodium chlorite. To make up a dipping solution put 1 liter of water into a bottle, then add 1 teaspoon of 10% citric acid , then add 1 teaspoon of Miracle-Mineral-Supplement . Let this sit for 15 minutes, then use it.
You end up with chlorous acid that has a PH of about 3 and about 700 PPM available chlorine dioxide. In 15 minutes the amount of free chlorine dioxide will be in the 1 - 3 PPM range and this allows you to use the solution without adverse effects from chlorine dioxide fumes.
Take care to keep this out of your eyes, and don't drink it. This solution can bleach if it dries on a surface.
Dip your food into this and swish it around a little to insure that the chlorous acid gets into all the nooks and crannies of the food. With spinach, open the bunch. With celery, work the stalks to get down into the base area. You are looking for 15 - 30 seconds of contact time. If you leave food in the solution for an extended period of time, you may notice bleaching.
In food processing rinsing after a chlorous acid wash is done based upon if the food is eaten raw, or if it is cooked. With fruits and vegetables, the food is rinsed. With meats and fish that are cooked, rinsing is not needed.
The final caution is that if you are on a septic system you should neutralize the chlorous acid before pouring it down the drain. Also, use plenty of the water when pouring it down the drain. 7 grams of vitamin C will neutralize 1 liter of this solution.