What is the golden rule of coffee?
The standard “golden ratio” for coffee is 1:16 – that’s one part coffee to 16 parts water by weight. For example, if you’re using 20 grams of coffee, you’ll need 320 grams (or milliliters) of water. This ratio is a great starting point for most brewing methods and balances strength and flavor. Use a dose between 7-10g of ground coffee for single baskets, 16-18g for double baskets, and 20-22g for triple baskets. Always grind into a clean and dry basket. To ensure your dose is accurate, tare the scale with the portafilter on top, grind it into the basket, and then place the portafilter back on the scale.So, while it is reported that a doppio was 60ml of liquid espresso, we need a clear indication of how much ground coffee typically went into that. A double basket is currently sized for 16-18 grams of ground coffee. It used to be 14 grams but has since expanded.In simple terms, a 2:1 ratio means you’re extracting twice as much liquid espresso as the weight of the coffee grounds you use. For example: 18 grams of ground coffee in = 36 grams of espresso out.
What is the 2 hour coffee rule?
Quick answer: The 2 hour coffee rule suggests waiting at least two hours after waking up before drinking your first cup of coffee. This guideline aligns with the body’s cortisol levels, aiming to optimize both the effects of caffeine and the body’s natural wakefulness cycle. Drinking coffee late at night may be unwise, unless you’re working a late shift. Caffeine has a half-life of two to 10 hours, depending on your metabolism,” DiMarino says. In other words, it could take as little as two hours or as long as 10 hours for your body to eliminate half the caffeine from one cup of coffee.According to emerging research in circadian biology and neuroscience, waiting about 90 minutes before having caffeine can improve focus, mood, and nighttime sleep quality. It’s not about giving up your morning brew — just about timing it to align with your body’s natural cortisol rhythm.Coffee in the morning can have some potentially adverse effects on the body—dehydration, upset stomach, and cortisol level increases, to name a few.In the afternoon, between 1 and 5 PM. These periods between natural cortisol boosts are the times where that caffeine jolt will be most productive. Instead of crashing between peaks, you’ll maintain alertness. A mug of coffee after 6:30 PM will help you avoid another crash, but you run into some other problems.
What is the 30 second rule for espresso?
The 30-second extraction rule suggests that a well-balanced espresso shot should take approximately 25-30 seconds to extract when using 18-20 grams of ground coffee and yielding about 30-40 milliliters of espresso. Pressure (9 bar, not 15 or 20) Many machines advertise 15–20 bar pumps, but more pressure doesn’t necessarily mean better espresso; excessively high pressures can lead to uneven flow through the coffee, which results in poor-tasting shots.Again, the ideal pressure for an espresso shot is 9-bar, which produces a perfect balance of flavor and extraction. Too much more than 9-bar can result in a burnt-tasting espresso, while too less than 9-bar will produce a weak and overly bright shot.