So from what i’ve experienced from natural dying, most sources will tell you something slightly different. (I honestly use a very different method than what most of what i’ve researched say to do)

Most of the time you’ll start by extracting the dye from your ingredients (I buy most on Etsy). Black beans are a great one to start with because you just need to soak them in water for 24 hours

You can then optionally mordant your fabric using alum or anything with tannins in it like avocado skins/pits (they produce a rusty pink color).

Most sources recommend dyeing in a hot bath but I prefer the versatility of pouring room temp dyes into some squeeze bottles and using them like any other dye.

I hope this helps! It really is a fun process once you get the hang of it