Being the juice is more time sensitive and only90% guarenteed and I'm still on my diet burning fat cells(lost another 2lbs) I'll use the subsitute.One question though,if I keep the heat pad on it till I go in the bathroom will I have to worry about the tempiture being to hot? This is incase I have to wait when I get there with Temp at 100%.Your input is greatly appreciated. P.S. you guys are great THANKS