The stove-top flash-heat method of pasteurization described below has been shown in international research to kill HIV, E. coli., Staph aureus and Strep A & B, while protecting important vitamins and nutrient composition of the milk.
You can read research details here:
While alternative methods of pasteurization require considerable expenditure, time, and/or skill, the 7-step method described below is universally accessible and does not even require a thermometer.
Step1: Wash hands with warm water and soap, rinse, and dry with clean,dry towel.
Step 2: Place thawed breastmilk into a clean glass jar.
Step 3: Place glass jar into a pot.
Step 4: Pour COLD water into the pot (not the glass jar). The amount of cold water in the pot should be 2 finger-widths higher than the amount of breastmilk in the glass jar.
Step 5: Place the pot containing the jar on the stove or other heat source and bring the water to a boil.
Step 6: Remove from heat when the WATER (not the milk) reaches a rapid boil.
Step7: Cover the jar with a clean lid and hold under cold water to rapidly cool the milk. The milk is now ready for use! Store in the same covered glass jar at room temperature for 6 hours, or in a refrigerator up to 24 hours.
Do not refreeze.