Blue Bottle Coffee · Night Light Decaf

Shot 100 — a milestone pull. Ristretto on Night Light Decaf at grind 40.5, 18.5g adjusted dose, 28.8g yield in 17 seconds. Balance landed at 4 and you rated it 4 stars. The yield was 1g over your 27.8g target and the time ran under the 20–25s window, but the taste result is solid. Even flow across both spouts throughout — cleanest flow note on this bean so far after three straight right-side channel shots at grinder 41–42.

Time is Very Fast at 17s and ratio is Short at 1.56 — consistent with a ristretto pull. The target yield was nearly nailed (28.8g vs 27.8g, 1g over). Time ran fast of the 20–25s target window, which tracks: grind 40.5 is the coarsest setting you've tried on this bean in ristretto mode, so a faster pull is expected. Balance 4 and 4 stars with even bilateral flow — the numbers and taste are aligned. Slight brightness in the notes is consistent with the key lime note in this bean's profile, and it's not flagged as lingering.

Night Light Decaf at 21 days since roast is at the tail end of its peak window for a Swiss Water medium — still good but don't expect improvement from resting further. The strong smoky character you keep noting across multiple shots (confirmed at grind 41 standard and now 40.5 ristretto) is the bean — crème brûlée and cocoa-forward profiles can read as smoky intensity, not extraction error. The key lime brightness showing up lightly here is the bean doing what it's supposed to do.

Shot 100. Your even-flow breakthrough on Night Light Decaf is a fitting milestone — three shots of right-side channeling resolved by one click coarser and cleaner WDT edge coverage. The pattern you identified and fixed is exactly the kind of diagnostic work that marks real progress.