What is the 15 15 15 coffee rule?
The Rule goes like this: Green coffee lasts about 15 months before it goes stale. Roasted coffee lasts about 15 days before it goes stale. Ground coffee lasts about 15 minutes before it goes stale. There is something called the 15/15/15/15 rule of thumb. Non-roasted beans will stale in 15 months. Roasted beans will stale in 15 days. Ground coffee stales in 15 minutes.Remember, coffee loses its most delicious and delicate flavors only 20-30 minutes after ground. That’s why we always recommend buying whole-bean coffee and grinding what you need for each batch to capture the freshest flavors.
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. The 2 pm cutoff is pragmatic: even a 150 mg cup leaves meaningful residual caffeine at 10 pm, which can reduce slow‑wave sleep and delay sleep onset. Late caffeine distorts sleep architecture, trimming deep sleep and rem, leading to poorer memory, mood, metabolic control, and next‑day performance.
What is the 1 2 rule for espresso?
For example, we should aim to extract 36g of liquid espresso from the 18g of ground coffee in 30 seconds, giving us our target ratio of 1:2. Don’t be afraid to try different coffees or big changes in your ratio style, but when you find a coffee you like, stick with it for some time! 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.Serving Size. Most standard espresso cups are designed so that they can serve a single shot of espresso with an average serving size of 30ml, and double shot of espresso, with an average serving size of 60ml.
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. The Espresso Golden Ratio The golden ratio for espresso brewing is typically a 1:2 to 1:2.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.