Is it really needed to peel the skin off of them before doing a extraction? is slicing drying and breaking into pieces or powder enough?

I never have-- the skin will fall off the flesh when you boil it anyway-- just slice it thin to make sure all the green is exposed to the water

A night in a freezer, put the whole cactus (skin, spines, core, ...) in a blender and you're ready to process an extraction.
Tip : a pressure cooker is a must.

Ok yeh I made tea without doing it well all of it got bored and said screw it half way through seemed pointless! HAHA did a iso wash without it too. This time I was going to try "kash's a/b" want clean product this time. I have a PC but didnt see anything about it in the tek. A better tek to follow?

Kash is a good tek (the one i use), use a pc instead of a pot, it saves time and energy.

awesome thanks...yeh pc is great for another hobby