Concentrated Detergent Stability: AEO Formulation Troubleshooting
Quick answer: Treat haze, gel, viscosity drift and phase separation as separate observations. Record the full formulation and preparation process, then isolate water, surfactant balance, electrolyte, solvent or hydrotrope, temperature and package conditions through controlled trials.
Evidence boundary: This page provides a troubleshooting framework, not a validated detergent recipe. It establishes no universal active-content threshold, additive percentage, moisture specification, shelf life or laundry-pod film guarantee.
1. Define the failure before changing ingredients
Record when the problem first appears: during mixing, cooling, storage, dispensing or dilution. Document product and batch identities, active-content basis, water, additions, order, mixing, temperature profile and elapsed time. Preserve a control sample where practical. Set measurable acceptance criteria for the intended product and package.
| Observation | Variables to investigate | Controlled comparison |
|---|---|---|
| Cold haze or gel | Complete composition, temperature history and preparation | Defined cold hold and recovery cycle with matched samples. |
| Viscosity drift | Water, electrolyte, surfactant balance, mixing and measurement conditions | Change one variable at a time; record viscosity method and temperature. |
| Phase separation | Compatibility, composition, preparation and storage conditions | Track layer formation and recovery using the same procedure. |
| Excess process foam | Use dilution, water, temperature and equipment agitation | Compare foam generation and decay in representative conditions. |
| Package or film changes | Complete formula, exact package, storage and sealing process | Use the package supplier's agreed compatibility protocol. |
| Acceptable concentrate, poor dilution | Dilution path, water quality, temperature and addition order | Evaluate realistic use dilutions and water variation. |
2. Screen exact AEO grades rather than family claims
Review the current TDS and SDS, and available batch COA information for each candidate. Record relevant grade properties and the conditions used to measure them. Do not assign AEO-7 a guaranteed cleaning role or AEO-9 a universal solubilizing role without complete-formula evidence.
Where a branched, end-capped or other candidate is considered, compare it against the incumbent at a stated concentration basis. Do not assume that a structural description guarantees winter clarity or eliminates gel formation.
3. Build a documented test matrix
Choose a justified range for each variable and hold the others constant where practical. Record the starting formula, exact adjustment, preparation, observations and repeats. If several factors must change together, describe that limitation rather than attributing the outcome to one ingredient.
4. Define storage and dilution tests for the product
Specify temperatures, duration, cycling, sample containers, measurement methods and pass/fail criteria. Include recovery after exposure and intended use dilution. A short refrigerator check can be a screening observation; it does not by itself establish shelf life, transport suitability or recall risk.
5. Validate film and package compatibility separately
For unit-dose products, use the exact film grade, finished composition, sealing process and agreed storage conditions. Review the film supplier's requirements and relevant chemical compatibility data. Do not equate ingredient moisture with water activity, and do not infer film flexibility, seal integrity or leakage performance from a surfactant specification alone.
6. Assemble the evidence before scale-up
Keep the formula revision, ingredient documents, preparation record, raw observations, repeats, package results and approval criteria together. Confirm cleaning, foam, fragrance behavior and handling in the intended application. Record unresolved questions and obtain supplier clarification before approving the exact formulation.
Related product and testing resources
Review the AEO collection, AEO-7 versus AEO-9 guide, end-capped AEO screening guide and trial record worksheet.
Request exact-grade AEO documents. Include the observed failure, composition basis, temperature profile, package and required acceptance criteria. Grade and sample availability require confirmation for the inquiry.
Editorial review: 16 October 2026. Earlier fixed recipes, unsupported numerical specifications and package-performance promises have been removed.
