it would be like putting chips/fries in cold oil then turning it on.or pre heating the oil upto 252 then drop the rosin in.id prefare to decarb the roisin seperately,but thats just me. the 252 at 27 mins is the ideal we want to get as close to both as possible. i dont like the cup measurements as my cup is pretty big. it is coconut oil we talking about ? sorry il have to back a bit.