Ferrous Vat Longevity

Q: I just purchased one of your Natural Indigo & Shibori Dye Kits. Once I create my indigo vat, do I have to use it right away or does it last for a while?

A: Your vat will last for weeks, once mixed up, if never used. The key to longevity of a ferrous vat is to minimize its contact with air. You should always keep it tightly lidded when it is not in use. And, when you're using the vat, make EVERY EFFORT to not slosh, splash, or drip back into the vat as that will oxidize your vat and leave the indigo pigment unable to bind to fabric. The kit is designed so that the pigment and the ingredients that activate it, should exhaust themselves at the same time.

Once you begin using your vat and it starts to lose potency, you can always rejuvenate it. I go in depth on the process of sharpening your vat on my page about indigo vat basics.