Start with comfort. A fast, very hot, highly caffeinated mug on an empty stomach is the setup most likely to feel jittery or refluxy, especially during dose changes. Two smaller cups spaced out and sipped slowly usually land better than a single giant slug. Paper-filtered drip or pour-over tends to feel smoother than unfiltered brews; on touchy days, a diluted cold brew or a low-acid decaf keeps the ritual without the “edge.”