Vaporizer Questions

Hey I got my vaperizer today and have been trying it out.
It is just a cheap one but it seems to work pretty good.But
I have few questions. Now my is just a little heating pad without a rheostat control, inside of a fish bowl. The directions say to place the spices in the tray and turn on for about 2 minutes then shut off.
My questions are
is it best to wait till the spice is finished smoking the draw of the vapors or should you pull on the vapors during the whole heating process?
And also does any one ever reburn the debris in a more old fashion burning device? :dance::thumbsup::dance:

burn, smoke, burn, smoke.. Just me. Do a test run.

you'll get nothing off the "debris" if it's working right. at least i never could.

I was just curious. I tried some of it from the first time I tried the vape. But I could not really tell then. I is just so hard for me to through away my lovely spices if it LOOKS
like the is some thing there. I will have to give it a try tomorrow because I have no more fresh till my order comes