This may already be known but I thought I'd post it anyway. I grew some cubensis a few years ago and dried and powdered them. I had a few very enjoyable experiences with them but always gagged when eating it (first time in 2min noodles, next in a strawberry milk). Anyway, I put them in a jar with an oxygen removing sachel from a pizza base and did a bit of travelling. Later, almost 2 years after storing them - I had some on a camping trip and mixed them with a strong mix of "Tang" orange-juice powder and water. I couldn't even taste the mushie powder at all and the effect was still strong after all that time (I had about 1 heaped dessertspoon of powder). If it wasn't illegal I'd recommend trying it.