All Grain Brewing is brewing like the professionals do it. There is no extract added, just “all grain”. The different ways of doing this is probably as many as there are craft brewers, but the joy of getting this right is unanimous. You can do this with a simple casserole and a siphon, and as difficult and advanced as you like. I am not going to add a lot of text here, I am just going to how you some videos.
These videos will show you all grain brewing in a Speidel Braumeister and a build of a home made system.
Remember that this is only a fraction of ways to do it. The principle is the same, but the way to get there can be different. Good luck with your choice