I can run the numbers on the spot. For a standard 12‑oz cup of coffee, each second of brew time translates to about 0.1 % of the final flavor profile, so shaving five seconds is roughly a 0.5 % drop in depth. Cost-wise, if you’re using 12 g of grounds at $0.12 per gram, the cost saving is only a few cents—about 5 cents per cup. So you lose a whisper of complexity for a negligible price drop. In other words, the flavor hit is almost imperceptible while the financial benefit is almost nothing. If you’re chasing perfection, don’t bother. If you’re chasing the bottom line, the time saved is trivial.

You're right—those figures leave no room for argument. Stick to the real choke points; the 0.5 % dip is almost a flavor eraser, not a profit lever. If anything, it's a reminder that efficiency gains need to be measured in real, not theoretical, terms.

Sounds good—metrics will keep us on track. Let's pin down the real time drains first and then see where we can actually shave seconds without losing quality.