When Lalo gets suspicious about the take from the drug house and tests the crystal meth, he separates the bags and samples one. It hits him like a mule and he says, “This isn’t our product”.
Is this a hint that Gus has been getting product from Walt and Jesse at this point in time? It didn’t look blue but I know Walt was cooking for Gus before the laundry lab was completed. Also, did you notice the scene with Gus and Gale in the lab under construction?
"Saul. Good. Man." Laughs.