Good Hygiene Practices along the coffee chain The Codex General Principles of Food Hygiene – Establishment: design and facilities Module 3.2.

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Good Hygiene Practices along the coffee chain The Codex General Principles of Food Hygiene – Establishment: design and facilities Module 3.2

Slide 2 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Objectives  To make trainees aware of the importance of good hygienic design and construction of food establishments  To relate the general code to the handling and processing of coffee  To create awareness of the roles of different stakeholders in ensuring good practices

Slide 3 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Content  Scope and objectives of Section IV of the Codex General Principles of Food Hygiene  Discussion of food hygiene principles relevant to ‘Establishment: design and facilities’ and their application to coffee handling and processing  Discussion of the roles of producers and government in ensuring good practices

Slide 4 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Establishment: design and facilities  Codex definition of establishment: ‘...Any building or area in which food is handled and the surroundings under the control of the same management.’  Objective of Section IV  Depending on the nature of the operations, and the risks associated with them, food establishments should be designed and constructed and equipped to ensure that Contamination is minimised Appropriate maintenance cleaning and disinfection is permitted

Slide 5 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Establishment: design and facilities Food hygiene considerations are important at the very first stages of planning a food establishment  Section IV of Codex GPFH covers:  Location of establishments  Premises and rooms – design, layout and internal structures  Design of equipment and its placement in the establishment  Supporting facilities and services

Slide 6 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Location of establishments  Establishments should not be located near  Polluted areas that pose a serious threat of contaminating food  Areas prone to pest infestation  Areas prone to flooding, high humidity, etc.  Areas from which waste cannot be easily removed

Slide 7 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Design and layout of establishments  Internal design and layout of establishment should  Permit good hygiene practices  Minimise possibility of cross contamination  There should be separate channels for  Raw material (fresh cherries)  Intermediate product (parchment, dry cherries)  Waste (pulp, husk)  Final product (green beans) Waste Offices End-products Warehouse Raw materials Work rooms Generalised lay-out for processsing facility showing product flow

Slide 8 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Layout of facility  To optimize proper functioning of each element of procedure  Pulpers should be located near a clean water source  Fermentation vats should be located near to pulpers  Waste outlet should be directed away from production and processing areas  Drying yards and other processing areas should be away from contamination vectors

Slide 9 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Design and construction of drying areas  Coffee drying yards should have  Adequate capacity  Smooth drying surfaces  Adequate provisions for drainage  Full exposure to sunlight

Slide 10 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Design and construction of fermentation vats  Fermentation vats should  Be located in the pulping house  Be adequate in number and capacity  Have smooth surfaces  Have a maximum depth of 1m  Slope gently towards the outlet

Slide 11 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Internal structures and fittings  Internal structures should be  Made of durable materials  Easy to clean and maintain Tiled and smooth surfaces suitable for cleaning Open beams and rafters accumulate dust

Slide 12 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities  General considerations  Walls and partitions should be easily cleaned  Floors should be constructed to allow adequate cleaning and drainage  Ceilings and overhead fixtures should be constructed to minimise build up of dirt and condensate  Working surfaces in direct contact with food should be durable and easy to clean Internal structures and fittings

Slide 13 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Facilities - air quality and ventilation  Adequate ventilation is required to  Minimise build-up of dust and husk particles from handling operations  Control temperature and prevent condensation  Dissipate odours that might taint the coffee

Slide 14 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Facilities - lighting Adequate natural or artificial lighting should be provided to enable operations to be carried out satisfactorily

Slide 15 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Facilities - storage  Adequate storage facilities should be provided for coffee to permit  Adequate maintenance and cleaning  Avoid pest access and harbourage

Slide 16 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Facilities - storage  Adequate storage facilities should be provided for coffee to  Enable food to be protected from contamination during storage Storage in a wet room with mouldy walls Thulha - Brazil

Slide 17 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Facilities  Containers for storage of dangerous materials (fuel, chemicals for cleaning, disinfestation, etc.) should be clearly marked and safely stored  Water supply - water of acceptable quality standard should be available for processing  Systems carrying unsuitable water should be separate  Electricity supply – operators should ensure alternative sources of electricity in case of cuts to the central power supply

Slide 18 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Facilities  Drainage and waste disposal  Cleaning facilities - should allow for adequate cleaning of equipment and facilities  Personal hygiene facilities - adequate toilet, handwashing and changing facilities should be provided for staff One of a series of ‘pools’ for treatment of waste water, at one wet processing facility

Slide 19 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Design of equipment Equipment should be designed and constructed to ensure that they can be adequately cleaned and maintained Sharp corners and crevices may create areas where food material can lodge, making equipment hard to clean

Slide 20 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Design of equipment Where necessary, equipment should be movable or capable of being disassembled to allow for maintenance, cleaning, monitoring, etc. Pulpers used in wet processing

Slide 21 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Design of equipment Equipment should be designed such that their operation is compatible with conditions necessary to ensure food safety and suitability. Main types of equipment in coffee processing include  Dryers  Pulpers  Hullers  Sorting equipment  Moisture monitoring equipment Several variations of basic coffee processing technology exist and different equipment may be used

Slide 22 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Design features of simple sun-drying equipment  Coffee is spread on a support (wire tray, woven mat, etc.) raised off the ground. Air can circulate freely above and below the support  Trays might be movable or fixed  When raining, trays are moved under a shelter or covered with plastic or any other material

Slide 23 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Design of simple solar dryers Parabolic solar dryers - the shape of the transparent roof is more or less cylindrical so as to concentrate heat in the drying zone and protect from rain. Heat cumulates between the coffee and the plastic and the air starts to circulate. This dryer is mounted on a pivot so it can be turned towards the sun.

Slide 24 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Design of simple solar dryers  Various solar dryer designs can give faster drying times by  Improving airflow and increasing temperature of drying air  Participatory approaches are necessary if potential advantages of ‘solar technology’ are to be matched with farmers’ needs  Capacity, capital cost, running costs, space requirement, ease of management, etc.  For additional information see Section 5 of ‘Introduction to coffee drying [.pdf]’

Slide 25 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Design of equipment – mechanical dryers Mechanical batch dryers are used in coffee drying - primarily for parchment  Horizontal dryers  Vertical dryers  Fixed-bed type dryers

Slide 26 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Design features of pulpers  Traditional designs are ‘drum’ and ‘disc’ pulpers  Main performance criteria include  Capacity; separation efficiency; physical damage to product; durability; ease of maintenance and cleaning

Slide 27 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Design features of pulpers  Important innovations are  Low water-use pulpers  Pulping systems that accept mixtures of green and ripe cherry and separate the ‘greens’ without crushing

Slide 28 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Design of hullers  Considerations in the selection of a huller include:  Capacity  Energy requirement  Efficiency of husk removal  Extent of physical damage to beans  Separation of loose husk  Durability  Ease of maintenance

Slide 29 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Equipment for control and monitoring Methods for the determination of water in coffee can be categorised as follows  Direct  Removal of water and determination of weight loss  Indirect  Some variable that is dependant on moisture is measured  Empirical subjective  This includes methods such as biting, shaking and cutting NB - These empirical methods of moisture determination in coffee have been shown to be unreliable

Slide 30 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Equipment for control and monitoring  Factors to be considered include  Cost  ‘Transportability’  Robustness  Stability  Repeatability  Sensitivity  Accuracy  Rapidity  The choice of method / equipment depends on  How the equipment is to be used  Who is to use it

Slide 31 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Equipment for monitoring moisture in the field  Restricting water availability is the main method for control of mould growth and development throughout the coffee chain  The ‘global coffee project’ has investigated methods of moisture determination so as to identify methods suitable for use in the field ‘EDABO’ distillation method of moisture determination developed in Brazil One type of low-cost moisture meter investigated under the ‘global coffee project’

Slide 32 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Location of equipment  Equipment should be located:  To permit adequate maintenance and cleaning  In accordance with requirements for proper functioning  To facilitate good hygiene practices, including monitoring

Slide 33 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Assessment of establishment  A plant assessment can help processors determine if facility design is appropriate  A checklist containing all vital areas and items to be considered should be prepared  During the inspection notes should be made in relation to all points contained in checklist  Evaluation of the design and construction of the establishment and facilities should be based on thorough knowledge of operations and potential hazards  Corrective action taken according to evaluation

Slide 34 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Assessment of establishment  Establish national standards, codes of practice, etc.  Support industry efforts to meet required regulations (information dissemination, new equipment design etc.)  Provide oversight to ensure industry compliance  Collaborate with government in developing sound and practicable guidelines and standards  Entrepreneurs must ensure that the design of their establishment is consistent with principles of food hygiene  Entrepreneurs must establish adequate hygiene and GMP programmes to ensure that equipment functions properly and that they do not lead to hazards in the coffee Government Local coffee industry

Slide 35 Module 3.2 – The Codex General Principles of Food Hygiene – Establishment: design and facilities Summary  Inappropriate site selection for coffee processing facilities can lead to quality and safety problems in the product  Plant layout should minimize the opportunity for cross contamination  Facility design and construction can affect the quality and safety of coffee  Equipment must be designed and located so as to facilitate its correct functioning, sanitation and maintenance  Government and industry must work together to improve hygiene conditions of coffee processing establishments