Alum in Israel

Jewelry Discussion
1

I feel like a cheerleader for alum lately, and why not, it’s better
for the planet. Alum is sold as a pickling spice, and also as a dye
retardant (I think, although it might be the opposite) for textiles.
I used to buy big bags of it at the fabric store.

DAVE

— david thorp
— @david_thorp

2

I have to amend part of my last statement about Alum, it is not a
dye retardant, it is a mordant, which is something that sets dye
into fabric. david thorp