This is a real treat. It's a real recipe for a witch bottle that dates back to the 1700s. This recipe involves heating the bottle over time, a seemingly novel approach. Why was the bottle heated? Well, some may argue that the bottle was heated to harm the witch. That may be so. However, if we take into account that the witch bottle is meant as a spiritual decoy or dummy, then perhaps heating the bottle is another means to mimic life, as in urine from a body is warm. It also may be that the heating of the bottle is meant to "heat up the work", as in to make it work faster and stronger. Perhaps all three reason are valid and correct. What's interesting is that the recipe talks about preventing your enemies from harming you but it's clear that the enemies references are in fact witches and people using black magic against you.