How to Compare Industrial Starch Specifications Before Buying
Choosing industrial starch is not only about selecting maize starch, tapioca starch, or modified starch. For manufacturers, the more important question is whether the product specifications match the requirements of the application.
Parameters such as pH, moisture content, viscosity, ash content, brightness, and other product-specific characteristics can vary between starch grades. Comparing these specifications before purchase helps buyers understand what they are actually sourcing and whether a particular grade is appropriate for their application.
Why Starch Specifications Matter
Starch is used across food, pharmaceutical, paper, textile, adhesive, packaging, bio-polymer, and other industrial applications. SPAC offers native and modified starches across these sectors, with product-specific technical specifications.
A technical specification sheet gives buyers measurable information about a product instead of relying only on general descriptions such as “high quality” or “industrial grade.”
When comparing starch products, buyers should look at:
- The intended application
- Starch type and grade
- pH range
- Moisture content
- Viscosity
- Ash content
- Brightness, where applicable
- Other parameters specific to the product
- Packing requirements
The relevant parameters can differ depending on the product and its intended use.
Key Industrial Starch Specifications to Compare
Parameter | What It Indicates | Why Buyers Should Review It |
pH | Acidity or alkalinity of the starch specification | Helps buyers compare the stated product range |
Moisture Content | Percentage of moisture specified in the product | Useful when comparing product specifications |
Viscosity | Flow-related characteristic measured using a specified method | Important for application-specific requirements |
Ash Content | Mineral residue represented in the specification | Provides another measurable quality parameter |
Brightness | Whiteness/brightness level where specified | Relevant to products where appearance matters |
Sieve Retention | Material retained through the specified sieve | Used as a product-specific specification |
Sulphur Dioxide | Specified SO₂ limit where applicable | Relevant to products where this parameter is included |
The exact limits and testing methods should always be taken from the specification of the particular starch grade rather than applying one universal benchmark to every starch product.
1. Check the pH Specification
pH is one of the parameters published for several SPAC starch products.
For example, SPAC’s maize food starch specification lists a pH range of 4.5–7.0. Its textile maize starch specification lists 6.0–8.0. This illustrates why buyers should compare the specification of the actual product they require rather than assuming that every starch grade has the same limits.
When reviewing a specification sheet, check:
- The stated pH range
- The product grade
- The intended application
- The measurement method, if provided
2. Compare Moisture Content
Moisture content is another commonly stated parameter.
SPAC’s maize food starch specification lists a maximum moisture content of 12%, while its textile maize starch specification lists a maximum of 14%.
The difference reinforces an important point for industrial buyers:
Do not compare a single number without considering the product grade and application.
Instead, compare the published specification for the exact starch product under consideration.
3. Understand How Viscosity Is Reported
Viscosity is particularly important because it is not necessarily reported using the same measurement method for every starch.
For example, SPAC’s maize food starch specification includes viscosity measured using a 5% Brookfield viscometer, while its textile maize starch specification uses a BTRA cup.
This means buyers should check both:
- The viscosity value
- The testing method used to obtain that value
Comparing two viscosity numbers without considering their testing methods can give an incomplete picture.
4. Review Ash Content
Ash content is another parameter included in starch specifications.
For example, SPAC’s adhesive maize starch specification lists a maximum ash content of 0.2%, while its textile maize starch specification lists a maximum of 5.0%.
Again, the figures are product-specific.
For procurement teams, the useful approach is to compare the stated limit against the specification required for the intended application.
5. Look Beyond the Basic Parameters
Some starch products contain additional technical specifications that may be relevant to their particular application.
Depending on the product, a specification sheet may include:
- Fibre content
- Sieve retention
- Sulphur dioxide
- Brightness
- Protein content
- Free acidity
- Cold-water solubility
- Application-specific viscosity measurements
For example, SPAC’s adhesive maize starch specification includes fibre content, sieve retention, sulphur dioxide, brightness, protein content and free acidity in addition to pH, moisture, viscosity and ash.
Therefore, a proper comparison should consider the complete product specification, not just one or two headline parameters.
How to Compare Two Starch Specifications
Before making a purchasing decision, industrial buyers can follow a simple comparison process:
- Define the application
Identify where the starch will be used. - Identify the required starch grade.
Determine whether the application requires native, modified, food-grade, pharmaceutical, or another specific product. - Collect the technical specifications.
Obtain the relevant specification for the products being considered. - Compare the measurable parameters.
Review pH, moisture, viscosity, ash, and other applicable parameters. - Check the testing method.
Particularly for parameters such as viscosity, confirm how the value was measured. - Discuss application-specific requirements
If the required specification does not fit a standard product, discuss the application with the manufacturer.
Why Product-Specific Specifications Matter
SPAC manufactures tapioca, maize, and modified starches for multiple industries and states that it develops customized products according to customers’ specific applications and requirements. Its manufacturing infrastructure includes separate tapioca, maize, and modified-starch facilities, in-house process and R&D laboratories, and an annual starch manufacturing capacity of more than 1 lakh MT.
This product diversity also means that buyers should not expect one specification to apply across every SPAC starch product.
For example, the product portfolio includes:
- Tapioca starch
- Maize starch
- Pharma grades
- Oxidized starch
- Cationic starch
- Spray starch
- Textile starches
- Dextrins
- Carboxymethyl starch
- Drilling starch
- HT drilling starch
Explore SPAC's Starch Product Range
If you are comparing starch specifications for a specific industry, explore the relevant SPAC starch products and services to identify the available product categories and applications.
Frequently Asked Questions
What are the main parameters used to compare industrial starch?
Commonly stated parameters include pH, moisture content, viscosity, and ash content. Depending on the product, specifications may also include brightness, sieve retention, fibre, sulphur dioxide, and other application-specific parameters.
Is the same starch specification suitable for every industry?
No. Specifications can vary between products and applications. SPAC’s published specifications for food, textile and adhesive starch products demonstrate differences in parameters and limits.
Why is the viscosity testing method important?
Different starch products may specify viscosity using different methods, such as Brookfield, Red Wood No. 1, or BTRA cup. Therefore, the measurement method should be considered alongside the reported value.
What should I share with a starch manufacturer?
Start with your industry, application, required starch grade, and relevant technical specifications. If your requirement is application-specific, sharing these details helps the manufacturer understand the product requirement more accurately.
Need Help With an Industrial Starch Requirement?
The right starch specification depends on the product, application, and technical requirements. SPAC manufactures tapioca, maize, and modified starches and provides customized products based on specific customer applications.
Share your application and technical requirements with SPAC to discuss the appropriate starch product and specification.