This is great starter silver solder kit. The Sparex and pickle pot will take care of the firescale. Sparex® is a granular dry acid compound manufactured for pickling, cleaning and removing surface oxidation, scale, and incrustation from metals. Use Sparex® No.2 for pickling gold, silver, and copper based alloys. The 12 oz bag makes 1 quart of solution. The pickle pot has a 16 oz capacity.
The kit also includes: Micro-Flame butane torch, magnesia fire proof block, copper tongs, #1 style tweezer, fiber grip tweezer, tripod with mesh screen, Handy flux, 1/4 TO of medium silver solder paste in easy to dispense syringe, and flux.
10 Common Mistakes Jewelers Make When Soldering: https://pjsupply.com/10-common-mistakes-jewelers-make-when-soldering/