If you are going to speed steep using warm water, first open the juice to allow new air to get in the bottle, put the lid back on, shake it up really well and make sure the water temp doesn't exceed 140 degrees. I read a lot about it and learned that if you put water in a crock pot on the lowest setting and leave the lid cracked a bit, the water won't exceed 140. Then you are supposed to leave the juice in the water for about four hours. When the four hours are up, open it to allow more fresh air in, replace the lid and shake it like crazy. After it comes back to room temp, you can try vaping it, but usually I just put it in a dark place for a few days before trying it. The reason you don't want the water to be above 140 degrees is so it doesn't degrade the nicotine. I am very sensitive to the nic level of my juice and I have never felt like the Crock Pot steeping I have done has lowered the nic level of my juice.
Good luck to you. I hope your juice turns out to be exactly the way you want it.
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Thankyou!!! Great tips! I'm going to heat up my zero nic juice first. I prefer the 0 normally but could never get it in XPress flavors. I just hope they launch the elite line soon and it includes my flavor. I go through about 90 mls of the stuff per week! I vape a lot