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Elements and Performance Criteria

  1. Maintain sanitation in acid-coagulated soft cheese making
  2. Implement procedures to prepare milk for acid-coagulated soft cheese making
  3. Inoculate the milk to promote coagulation
  4. Develop procedures to process curds
  5. Manage packaging procedures for acid-coagulated soft cheeses
  6. Monitor and adjust process control to produce cheese with consistent taste and quality
  7. Carry out sensory analysis and grading of soft cheeses
  8. Meet workplace requirements for food safety, quality and environmental management

Required Skills

Required skills include

Ability to

measure and mix acid coagulants and additives

inoculate milk and control ripening in the vat

promote syneresis to the required firmness and composition of curd

separate whey from curd and press if applicable and salt curd

monitor storage and ripening if applicable conditions for acidcoagulated soft cheese

add ripening agents lipases and surface treatments to acidcoagulated soft cheeses

maintain records for cheese making

carry out packaging of cheese

maintain hygiene and sanitation procedures in line with best manufacturing practice

use multiphase cleaning systems

develop safe work practices and personal hygiene and sanitation procedures

maintain the viability and integrity of coagulating agents

calculate cheese yields

develop packaging and labelling for acidcoagulated soft cheeses

comply with environmental requirements for a processing operation

Required knowledge includes

Knowledge of

the main cheese types and the common processes for making different types of cheeses

the main components of milk and cheese both curds and whey

types and impact of inhibitory substances in milk including bacteriophage

purpose and basic principles of cheese making

specifications of product at each stage of cheese making

milk characteristics and components important in cheese making

milk preparation for cheese making standardisation pasteurisation and homogenisation if required

types of starters and adjuncts used and their role in the fermentation process

effect of milk characteristics on cheese processing performance

moisture control in cheese making

processes of coagulation and syneresis and their role in cheese making

curd size and its impact on moisture

effects of pH and temperature on cheese processing performance and product quality

microbial contaminants of cheese lipolytic bacteria yeasts moulds bacillus listeria E Coli salmonella coliforms and staphylococci and their impact on cheese quality

sampling and testing procedures for microbes

yeasts and moulds and other microorganisms of significance in cheese making

temperature and humidity of curing

ripening agents for different cheese types

contaminationfood safety risks associated with the process and related control measures

techniques used to monitor the cheese making process such as inspecting measuring and testing as required by the process

common causes of variation and corrective action required for each cheese making process

organoleptic properties and their relationship to processes and ingredients in cheese making

sampling procedures for cheese making

contamination risk of inoculants and contaminants

food safety and quality assurance standards and procedures

cleaning and sanitation procedures in line with Australian standards for cleaning in the dairy industry

routine maintenance procedures

productbatch changeover procedures

OHS hazards and controls

procedures for recording production and performance information

environmental issues and controls relevant to the process including waste collection and handling procedures related to the process

Evidence Required

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria required skills and knowledge range statement and the Assessment Guidelines for the Training Package

Overview of assessment

A person who demonstrates competency in this unit must be able to produce a range of acidcoagulated soft cheeses to a commercial standard Assessment cannot take place on fully integrated industrial equipment

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Critical aspects of assessment must include evidence of the ability to produce acidcoagulated soft cheese to a commercial standard including

developing quality procedures for

sanitation food safety quality assurance and environmental management in acidcoagulated soft cheese production

developing work instructions for

preparing milk for cheese making

coagulating milk through inoculation

controlling ripening of soft cheeses in the vat

managing acidcoagulated soft cheese making processes

packaging and labelling acidcoagulated soft cheeses

carrying out sensory analysis of acidcoagulated soft cheeses

reviewing process control based on sensory analysis and results of testing

Context of and specific resources for assessment

Assessment of performance requirements in this unit should be undertaken within the context of cheese production Competency is demonstrated by performance of all stated criteria including the critical aspects and knowledge and skills elaborated in the Evidence Guide and within the scope as defined by the Range Statements applicable to the workplace environment

Assessment must occur in a real or simulated workplace where the assessee has access to

production process and related equipment manufacturers advice and product specifications

sampling and testing equipment and procedures

methods and related software systems as required for collecting data and calculating yields efficiencies and material variances appropriate to the type of cheese and the production environment

Method of assessment

The following assessment methods are suggested

observation of candidate making soft cheeses

written andor oral questioning to assess knowledge and understanding

workplace samples of acidcoagulated soft cheeses with a documented history of process and a completed selfevaluation

composition analysis of milk and cheese for the samples presented

thirdparty supporting statement

Guidance information for assessment

Evidence should be gathered over a period of time against a number of batches of acidcoagulated soft cheese Part of the evidence requirements for this unit requires that samples of at least three batches of acidcoagulated soft cheeses be produced to a commercial standard in a real or simulated environment Students must be assessed on their ability to control all aspects of cheese making including sanitation and materials storage and handling


Range Statement

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Legislation

Legislative requirements are typically reflected in procedures and specifications. Legislation relevant to this industry includes:

the Food Standards Code, including labelling, weights and measures legislation

legislation covering food safety, environmental management, OHS, anti-discrimination and equal opportunity.

Policies and procedures

Work is carried out according to:

company procedures

regulatory and licensing requirements

legislative requirements

industrial awards and agreements.

Cheese tests

Cheese tests may include:

testing for pH levels, moisture levels, salt levels and fat and protein levels

microbiological testing

chemical testing

physical testing of cheese throughout production

testing for organoleptic properties.

Cheese types

Cheese types include any type of acid-coagulated soft cheeses. Varieties of cheese covered by this classification include:

cottage and cream cheeses and quark

This unit does not cover acid-coagulated soft cheeses made in an industrial process.

Clarification procedures for raw milk

Clarification procedures for raw milk may include:

cloth filters

centrifugal clarifiers and separators

bactofugation

membrane (micro) filtration.

Milk standardisation requirements

Milk standardisation requirements may:

include standardisation of microflora, fat and protein, and casein/fat rations

require the addition of skim milk or skim milk solids, or the separation of cream.

Pasteurisation methods

Pasteurisation methods may be:

batch or continuous.

Added ripening agents

Added ripening agents may include:

milk enzymes

milk coagulants

lactic cultures

secondary cultures

microorganisms present in the milk and lipases

Lipases may be added by:

direct addition of enzymes

enzyme cocktails (lipases and proteases)

attenuated proteolytic cultures.

Key composition ratios of cheese

Key composition ratios of cheese include:

salt to moisture ratio (S/M)

moisture in the non fat substance (MNFS)

fat in the dry matter (FDM)

pH (acidity).

Surface treatments

Surface treatments may include

ashing

stamping.

Process control parameters to optimise yield

Process control parameters to optimise yield include:

curd cutting

heating and cooking

salting too soon after milling

high temperatures during pressing

washing.

Principles of optimising yield

Principles of optimising yield include:

obtain highest MNFS with good quality

standardise milk (P/F) to obtain maximum value for milk components

minimise fat and protein losses in the whey.

Packaging

Packaging may include:

vacuum and/or gas flush in gas and moisture proof film

plastic rigid containers

oxygen permeable wrap (e.g. greaseproof paper).

Multi-phase cleaning systems

Multi-phase cleaning systems require:

cleaning with a chlorinated alkaline detergent with a chelator, followed by water and acid rinses.

Records of cheese manufacture

Records of cheese manufacture may include:

timing of operations

temperature logging

milk and curd pH profile

curd weight

milk composition

cheese microbial counts

hooped yield

curing and grading data.

Food safety related information

Food safety related information may include:

milk counts

cheese bacterial counts

manufacture and storage details.

Cleaning standards

Cleaning standards include:

AS 4709 - 2001 Guide to cleaning and sanitising of plant and equipment in the food industry

AS 1162 - 2000 Cleaning and sanitising dairy factory equipment

AS 2541 - 1998 Guide to the cleaning-in-place of dairy factory equipment.