How do I remove flux after soldering the PCB board?

It is essential to remove flux residues after soldering. Flux residue can be cleaned with an isopropyl alcohol (IPA) solution.

Bad Soldering Practice: Why you need to remove solder flux from your PCB?

Do you need to clean flux?

Ultimate Guide to Cleaning Electronics

How To Remove Solder? - ElectronicsHub

Cleaning flux from a PCB, the easy way

What is the proper way to solder a circuit on a PCB? - Quora

Told A Friend I'm Learning Pcb Repair And He's Given Me Of, 56% OFF

That shiny brown stuff is flux right? Is that bad? Should I remove it? : r/AskElectronics

How to Remove Solder that Won't Melt?

Diamond Flux FN231 for Soldering Electronics and Wires. NoClean, ROL0. Responsible soldering requires high-quality Fluxes!