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 apply fermentation, concentration and drying or cooking or steaming processes and to review their effectiveness and efficiency based on an understanding of food science and technology.

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

Critical aspects of assessment must include evidence of : applying methods for fermentation or concentration and drying or cooking or steaming; determining processes and critical limits for processing a food product; documenting physical, biochemical and biological changes to food products and testing criteria; and analysing process controls for a food processing operation, based on product testing.

Context of and specific resources for assessment

Assessment of performance requirements in this unit should be undertaken within the context of food technology. Competency is demonstrated by performance of at least one of the food processes specified, 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 operating procedures

methods and related software systems as required for collecting data and calculating yields, efficiencies and material variances appropriate to production environment

tests used to report relevant product/process information and recorded results.

Method of assessment

The following assessment methods are suggested:

written and/or oral questioning to assess knowledge and understanding

observation of candidate conducting a range of processes and tests

a report on review of the production system.

Guidance information for assessment

Evidence should be gathered over a period of time in a range of actual or simulated environments.

Required skills includes:

Ability to:

Fermentation

recognise the biochemical principles of fermentation in production

establish the role of micro-organisms in the fermentation process

identify materials used in the fermentation process, including raw materials/pre-processed materials and starter cultures

recognise the equipment used in the production of fermented food products

apply appropriate quality control processes and procedures to assess fermented food products

ferment samples of food successfully

Concentration and drying

recognise the principles of concentration in production, including:

the aim of concentration in food processing

the need for concentration in food processing

heat transfer mechanism

recognise the principles of drying in food production, including:

the aim of drying in food processing

the need for drying in food processing

heat transfer mechanism

concentrate samples of food successfully

dry samples of food successfully

apply appropriate quality control processes and procedures to assess food products

Cooking or steaming

sequence ingredient addition to meet recipe specifications

start, monitor and adjust processing equipment to achieve required outcomes. Typical parameters monitored include:

time and temperature

agitation settings

weights

flow rates

flow diversion

characteristics of the mix such as colour, viscosity, density, and consistency

take corrective action in response to out-of-specification results.

Required knowledge includes:

Knowledge of:

Fermentation

biochemical principles of fermentation, including - lactic acid fermentation and alcohol fermentation.

the major micro-organism groups used in fermentation, including Lactococcus, Steptococcus, Leuconostoc, Pediococcus, Lactobacillus bacterial species, yeasts and moulds

the microbial growth phases - Lag phase, Log phase, Stationary phase and Death phase

materials used in the fermentation process, including raw materials/ pre-processed materials and starter cultures (single strain starters, multiple strain cultures, mixed strains)

quality control processes and procedures used to assess fermented food products.

Concentration and drying

the principles of heat transfer in the concentration of food

the principles of heat transfer in the drying of food

the various methods of concentration of foods, including evaporation, filtration, reverse osmosis and freeze concentration

the various methods of dehydrating foods, including cabinet, spray, drying and freeze dehydration

quality control process and procedures used to assess concentrated and dried food products.

Cooking or steaming

purpose and basic principles of heat sterilisation and effect on physical, chemical, micro-biological and organoleptic characteristics of the cooked product

basic operating principles of equipment including safe operating procedures

quality characteristics and conditioning required of ingredients used and their role in the product. Conditioning may include reconstituting dry ingredients and bringing ingredients to a required temperature

effect of ingredient quality/condition on the process. This may include variables such as temperature, viscosity/texture, microbial load and acidity quality

heat treatment requirements for low and/or high acid foods as appropriate to production requirements

stages and changes which occur during the blending and heat treatment stages

quality requirements of the cooked product.relationship between time and temperature in the cooking process.

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.

Occupational health and safety requirements

Codes of practice

Material Safety Data Sheet

Enterprise specific requirements.

Regulations

Australian and international standards including:

industry guidelines and codes of practice

industry regulations

Australia New Zealand Food Standards Code

ISO Standards

codex alimentarius

State food regulators.

Methods of fermentation

Fermentation processes in industry may include lactic acid fermentation and alcohol fermentation.

Materials and equipment for fermentation

Fermentation equipment may include water baths, cabinets, tunnels, multipurpose tanks, and fermentation tanks.

Materials used in fermentation may include raw materials/pre-processed materials to be fermented, starters such as single strain starters, and multiple strain cultures, mixed strains.

Methods of concentration and drying

Methods used to concentrate foods include evaporation, filtration, reverse osmosis and freeze concentration.

Methods used to dry foods include sun drying, cabinet, spray, drum drying and freeze dehydration.

Materials and equipment for concentration and drying

Heating and cooling systems, hygiene and sanitation equipment, drying, dehydration and systems, concentration systems and other relevant food processing equipment.

Materials and equipment for cooking or steaming

Equipment typically includes weighing and measuring equipment; sieves; blending and mixing equipment; cooking equipment or shell and tube heat exchangers/cookers (continuous processing).