Yes, follow @Kinnikinnick directions, especially pay attention to the limit of 130F , He is the expert on what I call the “Hot Bump Start” for PG macerations, I believe he invented the technique… get a good quality thermometer. Do not let the temp creep up on you and never let it approach over 145F !!! Flavor profile and the various parameters that change them (like temp and extraction solvent) are not discussed nearly enough in the forums.
Yea, also on the AP the 8 hours will be fine, even 10 or 12 on that particular one is fine, just watch the temps and keep it 130F not higher !!!
After two weeks you can extract a little (1ml) sample from the top of the jar, then mix it with 1ml of PG and 2 mls of VG in a little ant cup and test drip it on a 15w single coil like a Hadaly or something. During these tests you will be looking for developing strength of and developing flavor profile. It comes with experience, so I know this is going to be a hard part for you starting out making your own NETS, but if you think it is OK and needs to go to the next stage which is to finish and filter, you might consider cutting the batch in half and returning 1/2 to a smaller jar (1/2 pint) and letting it macerate for another two weeks and then test that one again later,. In the meantime you can be enjoying your first NET !
One of the hardest parts of getting going on NETs is understanding the element of time in all this, many mistakes are made trying to get results too fast. Sample, wait, sample again, wait, over and over again is just part of the process doing its thing. The juice will tell you when it is ready. Also make careful notes on paper or computer. I give each batch a Number which is on the Jar and record my progressive testing notes as I go along. For me, this is invaluable information.
A couple of simple and very inexpensive testing tools will help you with that sampling process:
Topwel 2ml 5.3" /13.5cm Plastic Transfer Liquid Dropper Pasteur Pipettes Pack of 100
Polar Ice 125 Count Jello Shot Souffle Cups and Lids, 1-Ounce, Translucent
On the AP sample, I suggest you use the entire as delivered pouch of AP (1.5oz) and at least 200mls of PG. in a 1 pint mason Jar. This will give you enough “working room” and allow for plenty of 1ml sample testing over a period of weeks.
Here is a picture worth a thousand words showing the stuff you need, including my oldie but goodie DNA 40 HCigar which I picked up at a garage sale for 20 bucks and a clone Hadaly RDA.
The Heat source you see in the picture is actually a Ultrasonic unit, but that is a story for another time, it also just serves very well as the hot water bath to maintain the necessary 130F, please note the Klien Instrument thermocouple temp recording device, but you don’t have to go that fancy, just make sure you have a reasonably accurate thermometer and a way to control the process temperature bath. You will probably use a rice cooker or cockpot (if you can control the crockpot temps, as they are known to run too high!!!)