Burning date juice in this way is a tradition. I used to see my grandfather do this. My grandfather passed away a few months ago. Inna lillahi wa inna ilaihi raji'un. In fact, I have seen many things from my grandfather in this life, one of which is making nur patali from date juice. It is still done near our house, but see if anyone else can make a presentation like this. You have beautifully depicted your daily activities. Best wishes to you.