Re: How long does it keep?
Posted by Catherine Cartwright Jones on November 29, 1999 at 22:30:54:
In Reply to: How long does it keep? posted by Amy L. on November 29, 1999 at 19:49:55:
It really helps to get it into cones and freeze it, so the henna has
no contact with air, and cannot continue to oxidize. Freeze it in
cones ..... it may not be perfect when you unfreeze it, but it will
be adequate (if it was good in the first place). Air and heat
exhaust henna paste. Those make the reaction between the acid and the
henna powder continue until the dye is no longer reactive.