Crate & Barrel was overwhelming this afternoon with choices of colanders and non-reactive pots so I came home to do more research. To tide you over here is a recipe by Grace Pilato that seems a little simpler than the one posted below. And Deborah Mele seems to have streamlined the process even further.

UPDATE: seems that both the IKEA pots I already had at home were stainless steel, hence perfectly "non-reactive"...now I can focus on colanders, cheesecloth and thermometers