It is a bit more potent and the effect is different, more boyant, sparkley I suppose you could say. Yes it goes away after you dry them. Everyone is soooo afraid of heat in mushrooms but I have never found a significant decrease in potency when the fruit is dried in the oven at uner 140 degrees. Better to finish off the almost dry ones in a warming oven than risk them going bad or rotting due to insufficient drying - Cracker dry, nothing else will do and a packet of desicant is a good thing in your stored product. The freezer is best but they will last a long time in normal household temps. People are too fixated on such things when your loss rate is infinetesimal. Do you really care that your product loses 1 to 5 percent of it's potency?