On Saturday, March 15, 2014 4:46:54 AM UTC-7, thunk wrote:
I have a bunch of the little silica gel packets saved and dry and use
some from time to time. Just got a similar dessicant packet from the
nori we made sushi with, and it's labelled "Lime Dessicant/Do Not
Eat/Do Not Open/Your Children Will Die/blah/blah".

So wp says this stuff is (by now) calcium hydroxide. Any use in the
home shop? We eat a lot of sushi.

Lime, as a dessicant, is effective, BUT it's pretty much the same
as cement (the stuff that comes in 80 lb sacks for a few bucks).
It isn't like the reversible dessicants of a chem lab (Drierite
is calcium sulphate).

Once lime has hydrated, nothing short of a hot oven will dry it quickly.