Oh good grief, your willingness to attack STBX says more about you than me trying to give you correct information.
Enjoy your coffee, I do not care where you go, however if you are going to trash STBX at least have your facts correct.
Just like liberals who attack WalMart should have their facts correct.
Oh please - you’re giving OPINION, now claiming that to be FACT.
Go ahead - give your money to a godless, liberal corporate behemoth. I’ll keep spending my coffee dollars with a local shop, with conservative, Christians who live & also spend money into the local economy.
Have a nice day, and enjoy shilling swill.
You can naturally get more caffeine by roasting awful Robusta coffees (but, not that much more) and you can increase caffeine a little by dark roasting away some of the bean (the more you roast, the less coffee weight you have). I don't think either of those explain the above chart.
If I had to guess, I would bet on them adding caffeine to help addict customers.