Overview
ISO 5530-1:2013 specifies a standardized laboratory method for assessing the physical behaviour of wheat (Triticum aestivum L.) flours during mixing. Using a farinograph, the standard defines procedures to determine water absorption (the water volume required to reach a target consistency) and key rheological properties of doughs via either a constant flour-mass or constant dough-mass procedure. The method produces a farinogram whose features (peak time, stability, softening, etc.) are used to characterize dough strength and mixing tolerance.
Key topics and technical requirements
- Measured properties: water absorption (volume of water to reach 500 FU), dough development time (DDT), stability, degree of softening, mixing tolerance index (MTI), and farinograph quality number (FQN).
- Instrument and conditions:
- Farinograph (example: Brabender) with defined operating characteristics: slow blade speed (63 ± 2 rev/min), chart speed (1.00 ± 0.03 cm/min), and specified torque per farinograph unit (FU) for 300 g and 50 g mixers.
- Mixing bowl temperature: (30 ± 0.2) °C; lab temperature recommended between 18 °C and 30 °C.
- Burettes for controlled water addition, balance capable to ±0.1 g, spatula, thermostat and distilled or demineralized water.
- Procedure essentials:
- Determine flour moisture using ISO 712 before testing.
- Prepare and calibrate the farinograph (pointer zeroing, pen alignment, damper adjustment).
- Use appropriate test portion (300 g or 50 g mixer equivalents adjusted to 14% moisture) and record the farinogram for evaluation.
- Data and reporting:
- Read and calculate water absorption and rheological characteristics from the farinogram.
- Follow precision guidance (repeatability, reproducibility) and include required test-report items.
Applications and who uses it
- Milling and flour quality control: mills use ISO 5530-1 to classify flours for intended end uses (bread, pastries) and to adjust blending and milling processes.
- Baking industry and R&D: bakers and product developers use farinograph data to predict dough handling, mixing tolerance and final product performance.
- Food laboratories and certification bodies: routine QC testing, specification verification and interlaboratory comparisons.
- Academic and applied cereal science: research into wheat functionality, breeding effects on dough rheology, and process optimization.
Related standards
- ISO 5530 series: Part 2 (extensograph) and Part 3 (valorigraph) for complementary dough rheology tests.
- ISO 712: method for determination of moisture content (referenced normative).
- ISO 24333: recommended sampling procedures for cereal flours.
- Note: ISO 5530-1 is based on ICC 115/1 and AACC Method 54-21.2.
Keywords: ISO 5530-1:2013, wheat flour testing, farinograph, water absorption, dough rheology, farinogram, DDT, stability, MTI, FQN, flour quality control.
Open preview (PDF)Wheat flour — Physical characteristics of doughs — Part 1: Determination of water absorption and rheological properties using a farinograph