What is the 15-15-15 coffee rule?
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. 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.A reminder – fresh roasted coffee’s rule of 3’s. Ground coffee – 3 minutes, roasted coffee – 3 weeks, raw coffee – 3 years.
What is the golden ratio for drip 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. Thankfully, coffee experts around the world have figured out a tried-and-true, gold standard ratio: 1:17. It stands for 1 gram of coffee for every 17 grams of water. If you want a “stronger” cup of coffee, adding more coffee beans may not actually help. Instead, opt for a darker roast for more full-bodied flavor.The Measurements We recommend 2 TBSP of coffee for every 1 cup of water. For geeks, that’s a coffee-to-water ratio of 55 grams (2 oz) of ground coffee per 1 litre (34 fl oz) of water.Most V60 recipes out there encourage you to use 1g of coffee for every 15–17ml of water, or you might often see the recommendation for 60g of coffee per 1 liter of water used for any drip brewer. The ratio you choose will affect both extraction and strength significantly.It’s the ratio of ground coffee to liquid coffee. So, a 1:2 ratio means that for every gram of coffee in your basket, we’re expecting 2 grams of liquid espresso out. Is the time it takes for your target yield to enter your cup.And your V60 brew ratio is… 1:16! A brew ratio (or golden ratio) of 1:16 tells us that we need 16 grams of water for every gram of coffee. We use 320 millilitres of water for one-to-two cups of V60 coffee.