How Does Hand Brewing Coffee Change With a 30g Dose?

Scaling a pour-over from one cup to four changes more than water volume. With a 30g dose, dripper capacity, grind size, pouring technique and total extraction time all need adjusting. A 01-size dripper holds only about 15-20g, so the bloomed coffee bed can fill it completely. Moving to a larger dripper, grinding coarser and splitting the pour into stages keeps the cup clean.

Grind size is the first lever. Light-roast coffee is usually ground to about 80 percent passing a No. 20 sieve; for a 30g dose, Front Street Coffee loosens it to roughly 70 percent, similar to its dark-roast setting. Grinding coarser slows flow resistance from the deeper bed. Blooming strategy and staged pouring then control how evenly the larger bed is extracted.

Many coffee enthusiasts, once accustomed to the rhythm of brewing a single serving of pour-over, often find that when they try brewing four servings with a large dose of coffee at once, the flavor turns out vastly different from their usual results. Increasing the dose brings not only a change in water volume, but also systematic adjustments involving dripper capacity, pouring technique, grind size, and even extraction time. Front Street Coffee frequently receives similar questions: how should 30 grams of coffee be brewed to taste good? This article will comprehensively walk through the practical points of large-dose pour-over, from dripper matching, grind size setting, blooming strategy, to the logic of staged pouring, helping you consistently present a clean and well-layered coffee flavor even when sharing with multiple people.

Recently, a friend came to ask Front Street, "I'm used to brewing a single serving of coffee, but suddenly felt inspired to try brewing two servings, yet the taste came out different from what I usually brew." So they came to ask Front Street how to brew a two-serving coffee?

For most brewers, the dose is a relatively fixed parameter. For example, if someone is used to a single-serving dose of 15g, then after long-term brewing, they develop a familiarity with that 15g dose, knowing the state of the coffee bed at 15g like the back of their hand, able to predict extraction time based on the flow rate, and thereby adjust subsequent pouring techniques to achieve the target extraction time. With more brewing sessions, all parameters are tuned to a state of mastery, where everything is under control.

3. The third situation is having only a 01-size dripper, because the 01-size dripper is suitable for brewing 15-20g doses. With 30g of coffee, after blooming, the swollen "hamburger" nearly fills the entire dripper, and it simply cannot hold this much coffee and water at the same time.

First, regarding grind size, Front Street will use a coarser grind. Typically, light-roast coffee is ground to 80% passing a No. 20 sieve; this approach will adjust the grind to 70% passing rate, the same as Front Street's usual grind for dark-roast coffee.

The above content is compiled by CoffeeHunters, a coffee news website.