Several years back, I wrote an article about the origins of what might be considered beer, and had it that it was accidentally discovered. Such sites as Gobekli Tepe are hypothesised as being seasonally inhabited in their outsets, and for folk coming and going where they are away for periods of time, having some stores of food stuffs would have been a necessity.
It doesn't have to be that grains were only eaten if they were ground down, does it? Seeds are eaten just as seeds, and collected and distributed or stored until they are eaten. Fish and flesh are treated in ways like salting or drying so they last longer, so too some fruits, and having something to store them in for a period of time so the elements don't destroy them makes sense when one is collecting after harvests so there is something to eat during winter, or stored while away and ready upon return.
I pondered an early beer was found because a storage facility became damaged and what the grains were stored in had water fill them. It may have been a grotto or cave or simple construction, but heavy rains or a weak wall or roof meant water got in. How long does it take for beer to brew? What conditions are necessary for a beer to brew? What would someone coming back to a store do after such a journey, and find their stash seemingly destroyed, and yet be thirsty enough to try the concoction? And why does one concoction taste different to another which had pots or bags of other things resting atop the other or nearby?
It was a good hypothesis, and one that made sense about how sometimes, accidents create tremendous discoveries. All it means after that is...what else to add to have other effects...the Fertile Crescent was a central location where so many areas could be reached and indigenous flora and fungi could be brought back. If other places had their own uses of such items in various ways, then adding some to a batch of beer would enhance the effect rather than it being eaten. There are poppies, cannabis, the flowers and roots of some plants and trees that offer psychotropic effects...anything becomes possible, doesn't it?
Gobekli Tepe's sites may just be the tip of the iceberg for what is there, and only be 'so' old with its remnants, but that is not to say that exact place was the origin...just to say some things can be found there. Brewing 'beer' may go back a few dozen thousand years if anyone considers all that is needed is a repository holding grain/s, and water, and left for a while.