malt
Enable an agent to recognise malt, assess its condition and functional suitability, and determine how a particular lot may be stored, processed or used.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
recalled by Codex without web access - no source was read
Researched by: Codex
Purpose and description
Enable an agent to recognise malt, assess its condition and functional suitability, and determine how a particular lot may be stored, processed or used.
Malt is cereal grain, most commonly barley, that has undergone controlled germination followed by drying, developing enzymes and modifying its internal structure for use in brewing, distilling and food production.
It can be Select or substitute a malt lot using cereal identity, colour, flavour and functional test results.; Estimate extract contribution using a stated analytical basis and intended process assumptions.; Assess whether a malt or proposed malt blend requires additional starch-converting capacity.; Choose crushing or milling conditions appropriate to kernel condition and downstream separation.; Assign storage, inspection or retesting actions from moisture, packaging and exposure history.; Accept, hold or reject a lot against documented end-use requirements and contamination evidence..
Distinguishing features
Evidence of controlled germination distinguishes malt from raw cereal grain that has merely been dried or milled.
Production history distinguishes intentionally malted grain from grain that sprouted accidentally before harvest or during storage.
The material remains grain or mechanically reduced grain; an extracted and concentrated soluble fraction belongs to a malt-extract model.
Cereal identity must be established independently of the word malt; the model does not assume every malt is barley malt.
Low enzyme activity alone does not exclude malt: thermal treatment and production history must also be considered.
Scope
+ Cereal species, variety, origin and lot identity of malt
+ Extent and uniformity of germination-related grain modification
+ Drying, kilning, roasting and smoking attributes retained by the material
+ Whole, crushed or milled malt and their condition during storage
+ Extract potential, enzyme activity, colour and sensory suitability for an intended use
+ Lot-specific contamination, allergen information and acceptance evidence
- Unmalted cereal grain as a separate material
- Malting equipment, facilities and operational control procedures
- Malt extract, malt syrup and malt-derived powders as downstream products
- Wort, beer, whisky and other finished food or beverage products
- Complete brewing, distilling or baking recipes and production processes
Characteristics
- Cereal identity
- Species and variety; mixed cereals or unknown where applicable Separates malts with different processing behaviour, composition and allergen implications.
- Malting provenance
- Malt lot linked to producer, grain lot and germination and drying records Supports recognition as malt and investigation of inconsistent performance.
- Malt style and treatment
- Declared style plus kilned, roasted, stewed or smoked treatment history Connects commercial descriptions to colour, flavour and functional expectations.
- Physical form
- Whole kernels, crushed grist or flour; particle-size distribution where measured Affects handling, extraction, separation and storage decisions.
- Moisture content
- % by mass, with analytical method and sampling date Supports storage assessment and interpretation of composition on a common basis.
- Extract potential
- % by mass, with dry or as-is basis, grind and laboratory mash method Estimates recoverable extract under stated test conditions.
- Diastatic power
- Degrees Lintner or degrees WK, with assay method Helps judge whether the malt can contribute sufficient starch-converting enzyme activity.
- Modification profile
- Method-specific indicators such as friability %, soluble-to-total nitrogen ratio and wort beta-glucan concentration Describes grain transformation through multiple indicators rather than an unsupported single quality score.
- Laboratory wort colour
- EBC or SRM, with extraction and colour measurement method Supports colour selection while distinguishing measured wort colour from kernel appearance.
- Sensory profile
- Recorded aroma and flavour descriptors, intensity and assessment preparation Distinguishes desired malt character from taints or deterioration.
- Lot acceptance status
- Unassessed, accepted for specified use, held or rejected; linked evidence and criteria Makes suitability conditional on the intended use and available inspection or test results.
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 5 bundles · 9 layers · 16 findings · 24 questions.
Malt identity and origin Establishes which cereal material was malted and how the resulting lot is identified.
The name malt does not establish cereal species, intentional germination or continuity with a producer's lot.
Cereal and material boundary
Distinguishes malt from neighbouring cereal materials and malt-derived products.
Identify the malted cereal
Record the grain identity and evidence supporting classification as malt.
- Which cereal species and varieties make up this malt, and is it a single-cereal lot or a mixture? definition
- What evidence distinguishes this material from unmalted grain, accidentally sprouted grain or malt extract? boundary
Grain-to-malt traceability
Connects the supplied malt to grain inputs and production records.
Establish lot continuity
Preserve the relationships needed to interpret lot certificates and mixed supplies.
- Which producer, malt lot, production dates and source grain lots are associated with this material? provenance
- Has the malt been blended or repacked, and which original lots and test certificates still apply? provenance
Modification and thermal character Describes the material changes associated with germination and subsequent heat or smoke treatment.
Malt performance depends on modification and treatment history that commercial style names alone cannot establish.
Germination and modification
Captures evidence of how far and how uniformly the grain was modified.
Assess modification profile
Use cereal-appropriate indicators to characterise modification and variation within the lot.
- Which modification indicators were measured for this cereal, by which methods and on what sample? measurement
- What evidence identifies uneven modification, hard kernels or other within-lot variation relevant to processing? measurement
Kilning, roasting and smoking
Relates declared malt style to its treatment and resulting sensory character.
Resolve treatment character
Record treatments and measured outcomes without assuming a style name fixes enzyme activity or flavour.
- What drying, kilning, stewing, roasting or smoking history supports the declared malt style? provenance
- What colour, aroma and flavour results characterise this lot, and how were the assessment samples prepared? measurement
Extract and processing function Establishes the malt's contribution to extraction, starch conversion and physical processing.
Selecting malt requires evidence of useful performance under specified conditions, beyond appearance or composition alone.
Extract and enzyme capacity
Separates recoverable extract from the ability to convert starch.
Evaluate functional contribution
Interpret extract and enzyme assays in relation to an intended use or blend.
- What extract potential and diastatic power were measured, with which units, moisture basis and test methods? measurement
- For the proposed malt proportion and process, what evidence supports adequate starch conversion or a need for additional enzyme capacity? action
Grist and separation behaviour
Connects kernel and grist properties to milling, extraction and downstream separation.
Match physical form to process
Assess physical form alongside measured properties relevant to the receiving process.
- What are the supplied physical form, kernel or particle-size distribution and husk condition where applicable? measurement
- What milling or use restrictions follow from this lot's physical form and available viscosity or separation test results? action
Storage and use acceptance Assesses whether a malt lot remains suitable for a specified use after storage and handling.
A malt's original specification cannot establish its present condition or acceptance for every destination.
Moisture and deterioration
Tracks storage exposures and observations that may change malt condition.
Assess stored malt condition
Combine moisture results, physical form and storage evidence to determine inspection needs.
- What are the latest moisture results, packaging condition and recorded temperature or humidity exposures? measurement
- Do age, milling date, infestation, visible mould or abnormal odour require isolation, retesting or revised storage? action
Contaminants, allergens and release
Links lot acceptance to applicable specifications and evidence.
Determine use-specific acceptance
Record relevant contaminant and allergen evidence without treating malt as a single pure chemical.
- Which cereal-allergen declarations, cross-contact records and contaminant results, including relevant mycotoxin tests, apply to this lot? provenance
- Against which destination, intended-use and customer criteria may the lot be accepted, held or rejected? action
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- This describes malt as a processed cereal material, not a malted drink or a spirit.
- Measurement ranges are indicative for pale barley base malt, not universal specifications; analytical method and reporting basis must be checked.
- Malt is a variable biological mixture rather than a single pure chemical; chemical identifiers, melting points and boiling points should not be assigned as though it were one.
- Which of these check these first hold for the sense of malt this model covers, and on what evidence? provenance
Kinds and varieties
Recalled without web access and unsourced; every item is a lead to verify.
- Pale base malt
- Munich malt
- Crystal or caramel malt
- Roasted malt
- Wheat malt
- Rye malt
- Which of these kinds and varieties hold for the sense of malt this model covers, and on what evidence? provenance
Standards and regulation
Recalled without web access and unsourced; every item is a lead to verify.
- American Society of Brewing Chemists (ASBC): Methods of Analysis for assessing malt quality.
- European Brewery Convention (EBC): Analytica-EBC methods for malt analysis.
- Which of these standards and regulation hold for the sense of malt this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Supplying enzymes and starch-derived extract for beer production.
- Providing fermentable extract and flavour for whisky and other grain spirits.
- Producing malt extracts and malt syrups.
- Adding flavour, colour and, when enzymes remain active, enzymatic functionality to baked goods.
- Making malted cereal foods and beverages.
- Which of these real-world use hold for the sense of malt this model covers, and on what evidence? provenance
Typical measurements
Recalled without web access and unsourced; every item is a lead to verify.
- Moisture content of finished pale barley malt - Approximately 3-5 - % by mass
- Laboratory fine-grind extract of pale barley malt, dry basis - Approximately 79-83 - % by mass
- Colour of pale base malt measured in laboratory wort - Approximately 3-6 - EBC colour units
- Which of these typical measurements hold for the sense of malt this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Insufficient or uneven germination can leave poorly modified grain, reducing extract recovery and impairing processing.
- Excessive germination consumes material through respiration and growth, reducing recoverable yield.
- Excessive heat can destroy enzymes needed for starch conversion; this is intentional in some specialty malts.
- Damp storage can support mould, spoilage and mycotoxin risks; grain dust also presents inhalation and combustible-dust hazards.
- Barley, wheat and rye malts contain gluten and are unsuitable for people requiring a gluten-free diet.
- Which of these failure modes and hazards hold for the sense of malt this model covers, and on what evidence? provenance
Regional variation
Recalled without web access and unsourced; every item is a lead to verify.
- European malt specifications commonly use EBC colour units, while North American specifications often use degrees Lovibond.
- Diastatic power may be reported in degrees Windisch-Kolbach or degrees Lintner, depending on regional and industry practice.
- Which of these regional variation hold for the sense of malt this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- Unmalted cereal grain - It has not undergone the controlled germination and drying that define malt.
- Malting - Malting is the production process; malt is the resulting material.
- Malt extract - Malt extract is obtained by extracting soluble material from mashed malt and usually concentrating or drying it.
- Wort - Wort is the aqueous extract produced during mashing and separation, rather than the malt grain itself.
- Roasted barley - Roasted barley used as a brewing ingredient commonly starts from unmalted grain; roasted malt has undergone malting before roasting.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of malt this model covers, and on what evidence? provenance
What the second pass must settle
- Does the registry intend malt to include undried green malt, or should green malt remain a related intermediate outside this scope?
- Which analytical methods and modification indicators are appropriate across barley, wheat, rye and other cereal malts?
- Which commercial malt-style names have sufficiently consistent definitions to support shared categories rather than producer-specific declarations?
- What storage and retesting criteria are supported for whole malt versus crushed or milled malt under different packaging and climates?
- Which contaminant limits, allergen requirements and acceptance tests apply to each intended use and destination jurisdiction?