Homemade Rosin Flux

[nephitejnf]

I searched around to see if anyone had posted this and hadn't seen anything.
But I found this when trying to see if I could salvage solder to use for later.

Homemade Rosin Flux From Pinecones

 

[kigconker1]

I tried this got a flame too close to the alchohol its honestly more rewarding to go buy some rosin

 

[eurddrue]

Lemon juice does work in a pinch, but it's best to just buy flux.