Yeah grog,it sure looked like it had been aerated to me. The act of pouring roughly can aerate the wort some.
I didn't realize this was a double IPA. I wouldn't feel the need to aerate anything below 1.060. When I do doubles with us05 I try to aerate as much as I can by stirring my bucket. I'm sure this doesn't work as well as shaking up a carboy but my IIPAs come out great. Just had one go from 1.082 down to 1.010 in less than a week using 1 sachet and a little stirring.
Just not sure what it could be. I feel like cleaning and rinsing are solid. Wondering is mixing sanstar with our tap water is creating an off flavor due to residual chlorine. Seems like such a small possible amount.
I don't think he sanitized his brewing water with star San. I think the only star San that made it into his brew was residual foam.