Hey guys, so I did a 'sour mash' extract berliner where I soured the wort for a few days with crushed grains. I then pitched wyeast kolche , the smack pack was fully swollen. I pitched a tad high At 75 but it's Since down to 68. The problem is after 48hrs there is no activity I popped the lif on the bucket and nothing is doing. I'm concerned the wort may be too acidic or I pitched too hot. 75 is in the safe zone according to wyeast though. Any suggestions? I've tried agitating the bucket a few times but nothing yet. Should I try to signicigicantly lower the temps?