Mixtures


  • Second DoE tool release – Mixtures with Process Variables

    Second DoE tool release – Mixtures with Process Variables

    Following the release of our Mixtures DoE Tool, Product Development Engineers Ltd has launched its second subscriber tool — an extension that combines mixture design with process variable optimisation. Subscribers can access the tool here. Where the Mixtures tool focuses on ingredient proportions alone, this tool is for situations where the formulation interacts with how…


  • Our first tool release – Mixtures DoE tool!

    Our first tool release – Mixtures DoE tool!

    Today, we are excited to announce the release of our first subscriber tool, enabling you to carry out Mixtures DoE-type work at a tiny fraction of the cost of more established tools. We shall follow this up with a whole suite of DoE-type analysis tools over the coming weeks and months. You can get access…


  • Snee & Marquardt (1976): Screening Designs for Mixture Experiments

    Snee & Marquardt (1976): Screening Designs for Mixture Experiments

    Snee and Marquardt’s 1976 experiment introduced an efficient screening design for mixture experiments, reducing complexity by identifying active components and simplifying optimisation.


  • Using Mixture–Process Variable Experiments: A Rocket Propellant Case Study

    Using Mixture–Process Variable Experiments: A Rocket Propellant Case Study

    Learn how mixture–process variable experiments can optimise formulations and processing conditions in real-world engineering. This case study on rocket propellants shows how combining mixture design with process variables improves product performance and scale-up reliability.


  • Design of Experiments explained

    Design of Experiments explained

    Design of Experiments (DoE) is a powerful method for improving products and processes through structured testing. This post explains what DoE is, who uses it, and how to apply full factorial, Taguchi, RSM, and mixture designs — including tools, examples, and visual insights.


  • Design Success with DoE

    Product Development Engineers Ltd When developing a new product, guesswork is costly. At Product Development Engineers Ltd, we help businesses around the world innovate smarter using advanced Design of Experiments (DoE) techniques. 🔍 What’s covered in this video: 🧠 Why DoE matters: Design of Experiments accelerates product development by reducing trial-and-error. It brings structure, speed,…


  • Constrained Regions Mixture Design Test Plan

    Our Constrained Regions Mixture Design Test Plan service is now available in our online shop at https://product-development-engineers.com/product/constrained-regions-mixture-design-test-plan/ #ExperimentalDesign


  • Unconstrained Simplex Lattice Design

    Our Unconstrained Simplex Lattice Design products are now available for UK customers in our shop: https://product-development-engineers.com/shop/ You can also ask for a formal quotation if you prefer. Non-UK customers, please contact us for a quotation only at the moment!


  • Cornell’s famous fish patty experiment

    Cornell’s famous fish patty experiment refers to an experiment carried out by John A. Cornell, a leading figure in the development of mixture designs, a branch of Design of Experiments (DOE). The experiment has become well-known as an illustration of mixture designs in food product development. Background of the Experiment John A. Cornell used this fish patty experiment…