I let my qwiso get cured 2x in the oven like I said above, then I put it in a cleaned out Vick tin and let it cure there for a few days, now it's like jelly. The first pic is actually after just one cure of 6 minutes in the oven at 220f-ish.
I wouldn't suggest you using the oven bro. Temps that high will evaporate the THC/hash.. your wasting some of your ISO yield. The best thing to do is.. get your mixture mixed up really well.. get one coffee filter and one (or two depending on quantity your making) ceramic plate (I personally use an old ceramic dinner plate).
Now, simply strain the mixture through the coffee filter.. and let it run out of the bottom of the coffee filter, onto the ceramic plate. The more golden it is.. the better the quality will be. That's what I've found in my experience with making ISO hash.
Once you have the mixture filtered through the filter and onto the ceramic plate.. all you need to do now is let it slowly evaporate on its own. Usually, this can take place within 24 hours.. maybe a little longer or even a little sooner depending on the conditions. Mine usually is ready to scrape and smoke within 24 hours.
Putting it in the oven.. sure, speeds up the process.. but you also lose some potency and even some THC. So again, IMO.. the best way to do it is to just let it sit overnight and evaporate on its own accord. The final product will be 10x better.. than if you use the oven method to speed up the drying process.. which again, is another reason why I highly suggest not using the oven method.
peace.