I'm in the process of brewing a pale ale today, right as the mash had hit the hour mark I got a work call and ended up tied up for a ½ hour or so meaning I mashed for ~90minutes. Also, my pH came in low at 5.1 (although I've lost some confidence in my meter a bit since I got a different result on a hot tub sample than the lab at the local pool shop) - do you think I'll experience any negative effects from the long mash/low pH?