Nor does it account for effectiveness of the methods that engineers used to cool the soil while they built the tracks. (scientificamerican.com)
The thing to consider is the rate of effectiveness of these methods. (evenflofeeding.com)
If you don't have buttermilk try to use sliced tomatoes or fresh juice without buttermilk as there are ladies who reported effectiveness of this method too after a few weeks of using. (fullhealthsecrets.com)