#005
Coming Soon
AeroTemper
Angled Paper-Filter Wetting and Seating for AeroPress Preparation
Whitepaper in preparation
Associated Gear:
AeroTemper
HomeWhitepapers
Research & Documentation
Whitepapers
In-depth technical documentation exploring the science, design rationale, and methodology behind each Brew Supply tool. Built for competitors, coffee scientists, and serious home brewers.
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2
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All Whitepapers
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#001
Published
AeroBox
Precision Press Stand for Quantitative AeroPress Brewing
25 min
December 2025
Associated Gear:
AeroBox
Read whitepaper
#002
Published
AeroStop
Mechanical Press Endpoint Control for More Repeatable AeroPress Brewing
18 min
June 2026
Associated Gear:
AeroStop
Read whitepaper
#003
Published
BeanSieve
Size-Based Bean Sorting for More Intentional Roast and Brew Comparisons
24 min
June 2026
Associated Gear:
BeanSieve
Read whitepaper
#004
Published
AeroSweep
Chaff and Fines Reduction Tray for Cleaner AeroPress Preparation
22 min
June 2026
Associated Gear:
AeroSweep
Read whitepaper
#006
Coming Soon
AeroHome
A Stable Two-Part Resting Station for Post-Press Drip Containment
Whitepaper in preparation
Associated Gear:
AeroHome
More whitepapers coming soon
As we develop new tools, their technical documentation will appear here
Deep Dives
Whitepaper Summaries
Condensed overviews of each whitepaper's core premise, key claims, and chapter structure.
AeroBox
Published
Precision Press Stand for Quantitative AeroPress Brewing
v1.0•25 min read•December 2025
Abstract
This white paper introduces AeroBox, an open-source, 3D-printable AeroPress press stand designed to enable quantitative control of the press phase by stabilizing the brewer and supporting scale-based measurement of total press output (grams-out) and press flow rate (g/s).
Key Claims
Measurement Claim
Controlling a measurable endpoint (grams-out) reduces brew-to-brew variability relative to hiss-based stopping.
Control Claim
Flow-rate feedback reduces press surges and improves press profile consistency.
Cup-Quality Claim
Avoiding late-stage pressing into the hiss regime reduces the risk of bitterness/astringency events.
Engineering Claim
A stable press stand enables these controls by reducing station movement during plunging.
Chapters Overview
1
Background and Context
AeroPress extraction involves immersion, filtration, and pressure-assisted flow. The press phase changes extraction and beverage composition depending on execution.
2
Problem Definition
The press phase is controlled by qualitative cues ('press gently', 'stop at hiss') rather than measurable targets, leading to inconsistent outcomes.
3
Mechanism
Late-stage pressing can spike bitterness due to two-phase flow transition, pressure increases, and fines migration at the 'hiss' boundary.
4
Design Goals
Convert 'press vibes' into measurable control: total press output (g) and press flow rate (g/s) as quantitative targets.
5
System Overview
AeroBox is a measurement-enabling press platform combining mechanical stabilization with scale-based mass and flow signals.
Associated Gear
View gearAeroBox
Testing
AeroStop
Published
Mechanical Press Endpoint Control for More Repeatable AeroPress Brewing
v1.0•18 min read•June 2026
Abstract
This white paper defines the AeroPress press endpoint as a controllable recipe variable and presents AeroStop as a compact physical stop that makes that endpoint repeatable and adjustable.
Key Claims
Endpoint Claim
A physical stop can reduce variability at the end of the press compared with guessing when to stop.
Dial-In Claim
Endpoint height can be held constant during testing or adjusted deliberately as part of the recipe.
Evidence Claim
Early testing supports careful claims about more repeatable beverage output, not full extraction control.
Portability Claim
AeroStop prioritizes compactness and travel readiness for competition kits, travel brewing, and low-friction practice.
Chapters Overview
1
Problem Definition
Why end-of-press control is difficult when brewers rely on feel, timing, and audible cues such as the hiss.
2
Endpoint Control
How the press endpoint differs from hiss avoidance and why that distinction matters for beverage output and flavor.
3
System Design
How the 18 mm base and 2 mm boosters define different fixed press endpoints and starting calibrations.
4
Dial-In and Evidence
How endpoint height can be used as a recipe variable, what early testing supports, and how community logging should work.
Associated Gear
View gearAeroStop
Testing
BeanSieve
Published
Size-Based Bean Sorting for More Intentional Roast and Brew Comparisons
v1.0•24 min read•June 2026
Abstract
This white paper defines roasted whole-bean size profile before grinding as a controllable competition variable and presents BeanSieve as an open-source workflow for matched dose composition from limited samples.
Key Claims
Measurement Claim
A weighed dose is not always the same physical dose, and BeanSieve makes that hidden size composition measurable.
Workflow Claim
Removing only below-range broken material and recomposing the retained profile preserves more coffee than aggressive sorting while improving repeatability.
Control Claim
Size-profile matched dosing lets brewers compare recipe changes against a more stable whole-bean baseline.
Evidence Claim
BeanSieve supports cleaner experiments and narrower claims about repeatability, not guaranteed sensory outcomes.
Chapters Overview
1
Problem Definition
A weighed dose can still vary physically because the whole-bean size composition entering the grinder is not necessarily constant.
2
Size-Profile Control
BeanSieve reframes roasted whole-bean size profile as a controllable variable rather than only a defect-sorting concern.
3
System and Workflow
Eight sizing trays, top and lid components, two BeanSieve-specific AeroSweep pieces, and a companion calculator support matched dosing and controlled profile experiments.
4
Evidence and Positioning
The paper defines what established coffee screening supports, what still requires community testing, and where BeanSieve fits among adjacent tools.
Associated Gear
View gearBeanSieve
Testing
AeroSweep
Published
Chaff and Fines Reduction Tray for Cleaner AeroPress Preparation
v1.0•22 min read•June 2026
Abstract
This white paper positions AeroSweep as a workflow tool for wider, more repeatable chaff removal and optional partial fines trapping during the same competition-prep step.
Key Claims
Geometry Claim
Moving grounds from a narrow catch cup to a wider tray improves the working geometry for airflow-based chaff removal.
Workflow Claim
The optional ridged Fines Separator Insert adds passive partial fines trapping to a step some brewers already perform with the smooth base tray.
Control Claim
Repeatable tool choice, shake count, and endpoint cues make preparation-state comparisons easier to test.
Evidence Claim
Prototype testing supports narrow mechanism claims about fines retention, not universal sensory improvement.
Chapters Overview
1
Problem Definition
Competition brewers already manipulate chaff and fines, but the workflow is often improvised, cramped, or costly under time pressure.
2
Separation Geometry
AeroSweep reframes chaff removal as a geometry problem and extends the same handling step into optional fines trapping.
3
System and Workflow
The standalone AeroSweep uses one smooth base tray plus an optional ridged Fines Separator Insert. It has no cap and is a different shape from the AeroSweep pieces included with BeanSieve.
4
Evidence and Scope
The paper defines the current prototype evidence, the practical limits of the tool, and the use cases where it is worth the added step.
Associated Gear
View gearAeroSweep
Testing
AeroTemper
Coming Soon
Angled Paper-Filter Wetting and Seating for AeroPress Preparation
Whitepaper in preparation · No publication date announced
Abstract
The AeroTemper whitepaper will document the two-part system, including the 20-degree cap base that lets excess rinse water flow out and the perforated tamper, alongside the filter-crease workflow problem, prototype testing, and the evidence boundary between more repeatable preparation and any future extraction claim.
Publication status
Testing is active. The finished whitepaper will publish the design rationale, test conditions, limitations, and print guidance once the evidence and release geometry are ready.
Associated Gear
View gearAeroTemper
Testing
AeroHome
Coming Soon
A Stable Two-Part Resting Station for Post-Press Drip Containment
Whitepaper in preparation · No publication date announced
Abstract
The AeroHome whitepaper will document the stable outer shell, removable black PETG drip basin, liquid-containment tests, cleaning workflow, and the limits of material and waterproofing claims for printed parts.
Publication status
Testing is active. The finished whitepaper will publish the design rationale, test conditions, limitations, and print guidance once the evidence and release geometry are ready.
Associated Gear
View gearAeroHome
Testing