The WDT Tool: What It Fixes (and the $1 Version)
WDT, with its history intact: what stirring your grounds fixes, what it cannot, the needle sizes that matter, and a...
Journal
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Read NowWhy Grinding Finer Can Make Your Espresso Worse
Past a point, grinding finer lowers extraction instead of raising it. The physics of channeling, the signs you crossed the...
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Read NowYou May Never Need to Descale (Read Before You Do)
Scale comes from your water, not the calendar. How to tell whether your espresso machine really needs descaling, what it...
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Read NowDial In a New Bag in Three Shots, Not Ten
Skip the ten-shot slog. Lock the recipe at 18 grams in and 36 out, read sour or bitter, and move...
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Read NowEspresso Sour or Bitter? Fix Your Shot by Taste
Sour and bitter espresso have opposite causes. Learn to tell them apart in one sip, then fix your shot with...
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Read NowA first espresso setup you won't replace: $700, $1,500, $3,000
Three complete setups at street prices, built on the one rule that survives every forum: budget the grinder first. Including...
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Read NowHow to descale an espresso machine, and when you shouldn't
Descaling is a correction, not maintenance. When it's due, how to run it on a tank machine, why vinegar is...
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Read NowThe espresso machine cleaning schedule (daily, weekly, monthly)
Two minutes a day, ten a week, thirty a month: the full schedule, the backflush how-to, and which machines should...
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Read NowBitter espresso: what it's telling you, and the order to fix it
Bitter espresso has two causes, and only one of them is your grinder. Clean the machine first, then grind coarser,...
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Read NowSour espresso: what it's telling you, and the order to fix it
Sour espresso is under-extraction. The fix order that wastes the least coffee: grind finer, lengthen the ratio, raise the temperature,...
