Why do many store bought citrus juices have added citric acid? Because rain, temp, irrigation, freezes, etc., all effect the composition of the final fruit. It is never exactly the same every single year.
I was a Senior Instrumentation Tech (21 years) for the largest retail OJ producer in the world. CA (plus other beneficial compounds) was/is added to increase the vitamin C content to meet/exceed our competitors claims inorder to comply with FDA, et al, mandates and 'living up' to the advertizements . And yes, extracted juice will vary based upon the annual crop AND variety. Such is the tight and impeccable QC! Ergo, my previous employer would combine varieties, or not, based upon consumer taste panels/surveys, the market and our self induced QC based upon the above.
Was a member on the company's consumer complaint/response committee. If we processed complaints such as the OP has historically demonstrated on the ECF, we would do our best to resolve his/her dissatisfaction(s), TWICE only.
If we had a repeat 2%er (vague reference to a past post of the OP), can ya say circular waste container?
Ya can take the vaper outta da basement, but...