I am going to brew a hefeweizen in my Keg King Junior fermenter. As this is my first wheat beer to brew under pressure what psi should i set my spunding valve to. Will also be using M20 yeast as it will be an 11l batch. Will use about two thirds of a packet. Cheaper to waste dry yeast than liquid. The malt is 60/40 wheat pils. What temp should i ferment at. I have heard i should do an acid rest but as i only use my 19l kettle to brew and mash is this necessary. I know M20 has a pitching range 18-30 degrees. Looking for a quick turnaround. It will be kegged. My fermentation fridge is temp controlled.