LWW Bean Counter

A revolution in single dosing for coffee

When you have a grinder such as the EG-1 or HG-1 capable of grinding without retention, it makes much more sense to weight the beans going in instead of those coming out. Utilizing Acaia’s industry-leading weighing technology, the LWW Bean Counter is made to work either with our bean cellars or for dosing right before grinding. The Bean Counter helps ease one of the most time-consuming processes in coffee making: precisely dosing the beans to weight. Use together with the bean cellars to parse out a bag of fresh coffee into shots, or at a shop to dose before grinding.

The Mechanism

Our Bean Counter is comprised of a simple mechanism that involves a paddle wheel and a stepper motor. This allows dispensing to occur accurately and quickly by operating in 2 phases: fast mode where the the wheel spins quickly to dispense beans into the ramekin beneath. Once the weight is within a couple grams of target weight, the paddle slows down to dispense one ‘tooth’ at a time. This is usually a single bean, but please note that not all beans are created equal and there are cases where 2 or 3 beans can be dispensed in one tooth-turn.


Left untouched, the shots are usually within 0.2-0.3g accuracy. If you require 0.1g accuracy, watch the weight as it finishes. If it’s 0.3g over, take 3 beans out and place them back in the hopper. If the weight is short, gently press down on the platen to dispense another bean (one tooth of movement). We call this the ‘hit me’ function as it feels like asking the poker dealer for another card — or in this case asking the dispenser for another bean.

Ease of Cleaning
As with all of our products, we design them from the ground up to be easy to maintain and clean. Despite having the industry-leading Acaia weighing technology built directly into the base, we started with a platen that can be easily removed to clean out bean particles and other detritus that could get in the way of accuracy. The platen has a self-aligning magnetic coupling feature that attaches itself to the load cell, the core of the weighing technology.
The dosing mechanism is just as carefully designed. The outer and inner doors are held on with strong rare earth magnets that keep them sturdy during operation, but easily removable without tools. The outer door is removed by pulling out the bottom edge and then lowering the door off of a top edge retaining hook. The inner door, made of ferromagnetic stainless, has a welded-on pull tab to pull off and expose the inner mechanism to clean with a brush and, if needed, a Q-tip.
door off


Setting up and using your Bean Counter

Bean Wheel

Care & Maintenance

How to take apart and clean the Bean Counter.