What size is the Rok portafilter? A fully assembled ROK 50mm Chrome portafilter for use in all our Classic EspressoGC machines. A 54mm portafilter is smaller and often used in Breville’s compact machines like the Barista Express and Bambino. In contrast, the 58mm portafilter, used in Breville’s higher-end machines like the Dual Boiler and Oracle, […]

What is the 2:1 rule for espresso? 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. Over-extraction: Too much pressure

What is the golden rule of espresso? The Golden Rule A reliable method for judging your extraction times is by following the “Golden Rule” which states that a double shot of espresso should result in about 2-2. Know your limits. Most adults can safely consume 400 milligrams of caffeine — or the amount in about

What size tamper for ROK? Perfect fit for the rok espresso maker gc tamper and rok presso espresso makers. With a diameter of 49. Rok tamper is made for the filter holder of rok lever machines.Perfect fit for the ROK Espresso Maker GC Tamper and ROK Presso Espresso Makers.How to choose the right size tamper.

How to increase pressure for espresso? You want more pressure, use a finer grind. Weigh your coffee beans each and every time before grinding and then adjust the amount of beans and the coarseness of the grind d to get the pressure in the right band. It could also very well be the case that

Is a ROK espresso maker worth the price? It’s much more expensive, but is praised as the best home-espresso machine for the cost by much of the specialty coffee community. There is, however, immense value in the rok espresso maker for lovers of coffee who are less picky than some of us. What makes la

Why is the pressure gauge not working on my espresso machine? If the espresso machine’s pressure gauge doesn’t move and no coffee flows, first check the water reservoir and pump. A faulty or clogged pump can prevent pressure buildup. Inspect the pressure gauge for mechanical failure or blockage. Clean the group head and portafilter to

What is the best pressure profile for espresso? When making espresso, you usually want nine bars of pressure, or nine times the weight of the pressure at sea level. Espresso has a long history, and nine bars is known to be the optimal pressure used to extract the best espresso. To gain some perspective on

What is a manual espresso machine? A manual espresso machine is operated by pushing and pulling a lever. As you raise the lever, it draws water into the brewing chamber to saturate the coffee grounds (a step known as pre-infusion). Pulling the lever back down creates pressure, forcing the water through the coffee grounds and

What is the correct pressure for espresso? Nine bars of pressure, which is nine times the weight of air at sea level, is the gold standard for extracting consistently great espresso in a 25- to 30-second time frame. Any higher or lower level of pressure results in imperfect extraction, typically producing espresso that is too