Chapter 31 Cleaning Compounds & Sanitizers (Abu Dhabi University - Fall 2024-25) PDF

Cleaning Compounds & Sanitizers Chapter 31 – Food Safety and Management College of Health Sciences EHS310-Food Safety and Management Fall 2024-25  Outline Part I: Understand...

Cleaning Compounds & Sanitizers Chapter 31 – Food Safety and Management College of Health Sciences EHS310-Food Safety and Management Fall 2024-25  Outline Part I: Understanding Soil & Cleaning Part II: Understanding Compounds Sanitizers Classification and characteristics of Importance and methods of soil. sanitizing. Role of cleaning media and the Efficacy and desired properties of cleaning compounds. properties of sanitizers. Selection and handling of cleaning Overview of various chemical agents. sanitizers and their applications.  Objectives To provide an in-depth understanding of cleaning compounds and sanitizers in food sanitation. To emphasize the importance of effective cleaning and sanitization in preventing foodborne illnesses.  Detailed Structure of the Lecture Part I: Understanding Soil and Cleaning Part II: Understanding Sanitizers Compounds 1. Introduction to Sanitizing in Food Safety 1. Introduction to Soil in Food Sanitation 2. Classification of Soil Types 2. Methods of Sanitizing 3. Chemical and Physical Characteristics of Soil 3. Efficacy of Sanitizers 4. Soil Attachment Characteristics 4. Desired Properties of Effective Sanitizers 5. Effects of Surface Characteristics on Soil Deposition 5. Overview of Chemical Sanitizers (Chlorine, Iodine, Quats, etc.) 6. Techniques for Soil Removal 7. Role of Cleaning Media 6. Sanitizer Resistance and Rotation 8. Characteristics of Cleaning Compounds 7. Testing Sanitizer Strength 9. Classification and Selection of Cleaning 8. Best Practices for Sanitization Compounds 10. Handling Precautions  Learning Outcomes You will be able to identify and classify different types of soil found in food environments, understanding their characteristics and implications for cleaning and sanitation ➔ Analyze soil types You will demonstrate the ability to select appropriate cleaning compounds based on soil type and surface material, considering safety and efficacy ➔ Evaluate cleaning compounds You will articulate the importance of sanitization in food safety and differentiate between various sanitizing methods and chemical agents ➔ Understand sanitization methods You will be able to apply best practices for handling and testing sanitizers, ensuring compliance with safety regulations and enhancing sanitation effectiveness ➔ Implement best practices Part I: Understanding Soil and Cleaning Compounds  1. Introduction to Soil in Food Sanitation Definition and Importance Soil in Food Sanitation: Unwanted materials that can contaminate food products, including organic and inorganic matter. Importance in Food Safety: Understanding soil types is crucial for effective cleaning and sanitation, as different soils require different approaches. ➔ Soil's role in food safety.  2. Classification of Soil Types Types of Soil: ▪ Organic: Food residues, grease, oils. ▪ Inorganic: Dust, minerals, metal filings. ➔ Common soil types found in food processing environments.  3. Chemical Characteristics of Soil Key chemical properties: pH Levels: Affects the solubility of cleaning compounds; acidic soils may require acidic cleaners. Solubility: Solubility of various soil types influences how they interact with cleaning agents. Reactivity: Soil reactivity with cleaning agents can impact effectiveness and safety. ➔ Implications for cleaning effectiveness.  3. Physical Characteristics of Soil Key physical properties: Particle Size and Shape: Larger particles may be easier to remove, while smaller ones may require more intensive cleaning methods. Density: Denser soils may cling more tenaciously to surfaces, influencing the choice of cleaning method. ➔ Effects on cleaning techniques and efficiency.  4. Soil Attachment Characteristics Mechanisms of soil adhesion to various surfaces: Weak intermolecular forces that can cause soil to cling to surfaces ➔ Van der Waals Forces. Affects how liquids (cleaning solutions) interact with soils ➔ Surface Tension. Factors Influencing Adhesion: Surface material, moisture content, and environmental conditions.  5. Effects of Surface Characteristics on Soil Deposition Role of surface texture and material on soil adherence: Surface Texture: Rough surfaces may retain more soil due to increased surface area. Material Types: Different materials (stainless steel vs. plastic) exhibit varied adhesion properties, impacting cleaning strategies. Strategies to minimize soil attachment: Use smooth, non-porous surfaces to reduce soil accumulation. ➔ Surface characteristics affect soil deposition.  5. Effects of Surface Characteristics on Soil Deposition Influence of Surface Roughness, Nanostructure, and Wetting on Bacterial Adhesion (Mu et al., 2023)  6. Techniques for Soil Removal Pre-cleaning and soil removal methods: Importance of removing bulk soil before applying cleaning compounds, such as scraping and vacuuming. Effective tools: Use of brushes, pressure washers, and steam cleaners to enhance removal effectiveness. ➔ Importance of tools and equipment in the cleaning process.  7. Role of Cleaning Media Cleaning media for food industry: Substances that facilitate the cleaning process, primarily water and detergents. Impact on Cleaning Quality of water (hardness, pH, temperature) significantly influences cleaning effectiveness and compound solubility. 8. Characteristics of Cleaning Compounds Chemical Compounds/Cleaning 8. Characteristics of Cleaning Compounds Chemical Compounds/Cleaning How many do you recognize?  8. Characteristics of Cleaning Compounds Economical Emulsifying, deflocculating, sequestering, dispersing, or suspending action Surface penetration and wetting actions Effective rinsing properties CC should be Non-toxic Non-corrosive Non-dusting Easy to measure or meter Stable during storage Easily and completely dissolved  8. Characteristics of Cleaning Compounds Factors affecting cleaning performance: Concentration: Higher concentrations can enhance cleaning but may lead to residues if not rinsed properly. Contact Time: Adequate time is required for cleaning agents to work effectively against soil. Temperature: Warmer temperatures usually improve solubility and cleaning action; however, some compounds may degrade at high temperatures.  9. Classification & Selection of Cleaning Compounds Major Cleaning Compounds Types Detergents: Surfactants that lower the surface tension of water, making it more effective for cleaning helping in removing soil. Solvents: Used to dissolve oils and greases that detergents cannot remove aiding in cleaning. Abrasives: Physical agents that remove soil through mechanical action (Used for scrubbing surfaces and removing stubborn soils). Examples: Provide specific examples for each category to illustrate their use (specific applications for each type) (~ 5 min research + 5 min discussion)  9. Classification & Selection of Cleaning Compounds Selecting cleaning compounds: Criteria for Selection (choosing the right cleaning compounds for specific applications): Soil Type: Identify the nature of the soil (grease, organic material, etc.) to choose appropriate compounds. Surface Material: Compatibility with surfaces to prevent damage. ➔ Considerations for safety, efficacy, and environmental impact. Regulatory Requirements: Adherence to food safety standards to ensure compliance.  10. Handling Precautions Safe Handling: Use personal protective equipment (PPE) such as gloves, goggles, and masks. Proper Labeling and Storage: Importance of clearly labeling containers and storing chemicals according to guidelines. Material Safety Data Sheets (MSDS): Ensuring staff are familiar with MSDS for all cleaning compounds. ➔ Best practices for safe handling and storage. FDA Food Code: Cleaning Different Surfaces Cleaning and Sanitizing - Foodservice  Summary of Part I Key takeaways on soil and cleaning compounds: Understanding soil characteristics is essential for effective cleaning. Proper selection and handling of cleaning compounds are critical for successful sanitation.