Guess when to stop pressing
Stop at a fixed physical endpoint
No fixed stop depth
Each booster stops the press 2 mm earlier
Portable physical press stop that helps AeroPress brewers end the press phase more consistently.
As a starting point, think of each booster as removing roughly 4 g of brewed output. That is a practical calibration step, not a hard rule.
This is the core guide. Everything else on the page supports these five steps.
Use this as the initial starting point. Pick the stack before brewing, then adjust from there if needed.
| Coffee dose | Starting setup | Intended result |
|---|---|---|
| 12 g | Base only | Barely avoid hiss |
| 15 g | Base + 1 booster | Barely avoid hiss |
| 18 g | Base + 2 boosters | Barely avoid hiss |
| 20 g | Base + 3 boosters | Barely avoid hiss |
Fit AeroStop around the AeroPress plunger shaft so the stop point is ready before water goes in.
Keep your usual dose, water, grind, and timing. AeroStop is only setting the end point.
Do not change the rest of the recipe just to use the stop.
Plunge steadily. Stop when the plunger reaches AeroStop instead of trying to guess the endpoint by feel.
After the brew, check whether the stop or grams-out landed where you wanted. Add or remove boosters before the next brew if you want a small endpoint change.
Each booster changes the stop by 2 mm.
Use the stack to move the endpoint in small, predictable steps. Recheck the stop after any change.
Base only if you want the standard stop.
Add a booster if you want the stop earlier.
Remove boosters if you want to return to the base stop.
If you want to track grams-out or flow rate, AeroBox is the companion tool. AeroStop keeps the endpoint physical. AeroBox adds measurement.
AeroStop is for repeatable endpoint control.
AeroBox is for measuring the press itself.
Use the one that matches the decision you need to make.
The longer technical version with context, references, and early testing notes.
Final print/download link will go here.
Use the how-to when the main question is endpoint height, then follow the related pages for more measured press control or broader repeatability work.
A practical explanation of hidden variability in AeroPress brewing and how to reduce it.
Read Why AeroPress brews stop matchingA practical training structure for competition brews, logging, workflow, and serving.
Read AeroPress championship prep frameworkAeroBox turns grams-out and press speed into measurable recipe variables.
View AeroBox precision press standBeanSieve makes whole-bean size composition visible before grinding.
View Bean Sieve matched-dose workflowReturn here after the next guide lands.