Learn how chemical exposures in water treatment plants can impact your health, and explore practical strategies to stay safe ...

It turns out that a hot solution of alum (ammonium aluminum sulfate), which is available in the spice rack of your local supermarket, will dissolve the steel drill bit without reacting with the brass.

CDMOs are crucial partners in alum-based vaccine production, managing aseptic filling with precision and efficiency.

You can see a video of his process below. The experimentation started with fish tank clarifier, which is — apparently — mostly alum. Alum’s been used to treat wastewater for a long time.