Food Production Chapter 12 – Flashcards
Unlock all answers in this set
Unlock answersquestion
Cleaning
answer
food can be contaminated if you do not clean correctly; cleaning removes food and other dirt from surfaces
question
Cleaning: type and condition of the dirt
answer
certain types of dirt require special cleaning methods; condition of the dirt affects how easily it can be removed
question
Cleaning: Water hardness
answer
cleaning is harder if the water is hard; minerals react with the detergent and decrease how effective it is; hard water can cause scale or lime deposits to build up on equipment; can require the use of lime removal cleaners
question
Cleaning: Water temperature
answer
the higher the water temperature the better a detergent will dissolve and the better it will loosen dirt
question
Cleaning: Surface
answer
different surfaces need different cleaners; some cleaners work well in one situation and not in another; the wrong cleaner may damage equipment
question
Cleaning: Agitation or pressure
answer
scouring or scrubbing a surface helps remove the outer layer of dirt; allows the cleaner to penetrate deeper
question
Cleaning: Length of treatment
answer
the longer the dirt on a surface is exposed to a cleaner the easier it is to remove
question
Cleaners
answer
remove food, dirt, rust, stains, minerals, or other deposits;; must be stable, noncorrosive, and save to use
question
How to use cleaners correctly
answer
follow manufacturer's instructions carefully (may not work and may be dangerous if used incorrectly); do not use one type of cleaner in a ace of another unless the intended use is the same
question
4 types of cleaner categories
answer
detergents, degreasers, delimers, and abrasive cleaners; some categories may overlap
question
Detergents
answer
all detergents contain surfactants (surface acting agents) that reduce surface tension between the dirt and the surface being cleaned; allows the detergent to quickly penetrate and soften the dirt; general purpose detergents are mildy alkaline that remove fresh dirt from floors, walls, ceilings, prep surfaces, and most equipment and utensils; heavy duty detergents are highly alkaline and remove wax, aged or dried dirt, and baked on grease; dishwashing detergent is very alkaline
question
Degreasers
answer
detergents that contain a grease dissolving agent; work in areas where grease has been burned on (grill, backsplash, oven doors, range hoods)
question
Delimers
answer
used on mineral deposits and other dirt that other cleaners cannot remove; used to remove scale in dishwashing machines and on steam tables
question
Abrasive cleaners
answer
contain a scouring agent that helps scrub hard to remove dirt; used to remove baked on food in pots and pans; can scratch surfaces.
question
Sanitizing
answer
reduces pathogens on a surface to safe levels; food contact surfaces must be sanitized after they have been cleaned and rinsed; can be done by using heat or chemicals
question
Heat sanitizing
answer
sanitizing can be done by soaking in hot water; water must be 171*F and the item must be soaked for at least 30 seconds; a heating device must be installed to maintain this temperature; you can also sanitize by running the items through a high temperature dishwasher
question
Chemical sanitizing
answer
tableware, utensils, and equipment can be sanitized by soaking in a chemical sanitizing solution; you can rinse, swab, or spray with a sanitizing solution; three common sanitizers include chlorine, iodine, and quaternary ammonium compounds (quats); regulated by state/federal environmental protection agencies; you can sometimes use detergent/sanitizer blends to sanitize (operations with two compartment sinks often use these); if you use a detergent/sanitizer blend use it once to clean and then again to sanitize
question
Sanitizer effectiveness: Concentration
answer
sanitizer solution is a mix of chemical sanitizer and water; the concentration of this mix (amount of sanitizer to water) is critical; too little sanitizer may make the solution weak and useless; too much sanitizer may make the solution strong and unsafe; can leave a bad taste on items or corrode metal; concentration is measured in ppm (parts per million); a test kit can be used to check the concentration of a sanitizer solution (make sure it is made for the sanitizer being used/ available from the chemical manufacturer or supplier); hard water, food bits, and leftover detergent can reduce the solutions effectiveness; change the solution when it looks dirty or its concentration is too low; check concentrations often
question
Sanitizer effectiveness: temperature
answer
the water in the sanitizing solution must be the correct temperature; follow manufacturer's recommendations
question
Sanitizer effectiveness: Contact time
answer
for a sanitizer solution to kill pathogens it must make contact with the object being sanitized for a specific amount of time (usually around 30 seconds)
question
Sanitizer effectiveness: water hardness
answer
can affect how well a sanitizer works; refers to the amount of minerals in your water; can be found out from the municipality; work with your supplier to id the correct amount of sanitizer to use for your water
question
Sanitizer effectiveness: pH
answer
can be found out from the municipality; work with supplier to find out the correct amount of sanitizer to use for yoruw ater
question
Guidelines for the effective use of Chlorine
answer
water temp (>/- 100*F or >/- 75*F); water pH (- 10 or - 8); water hardness (as per manufacturer's recommendation); sanitizer concentration (50-99 ppm); sanitizer contact time (>/- 7 sec)
question
Guidelines for the effective use of Iodine
answer
water temp (68*F); water pH (- 5 or as per manufacturer's recommendation); water hardness (as per manufacturer's recommendation); sanitizer concentration (12.5-25 ppm); sanitizer contact time (>/- 30 sec)
question
Guidelines for the effective use of Quats
answer
water temp (75*F); water pH (as per manufacturer's recommendation); water hardness (>/- 500 ppm or as per manufacturer's recommendation); sanitizer concentration (as per manufacturer's recommendation; sanitizer contact time (>/- 30 sec)
question
What needs to be cleaned and rinsed?
answer
includes walls, storage shelves, and garbage containers; any surface that touches food such as knives, stockpots, cutting boards, or prep tables must be cleaned and sanitized
question
How to clean and sanitize
answer
scrape or remove food bits from the surface (use the correct cleaning tool such as a nylon brush, pad, or a cloth towel); wash the surface (prepare the cleaning solution with an approved cleaner and wash the surface with the correct cleaning tool such as a cloth towel); rinse the surface (use clean water and rinse the surface with the correct cleaning tool such as a cloth towel); sanitize the surface (use the correct sanitizing solution, prepare the concentration per manufacturer's requirements, use the correct tool such as a cloth towel to sanitize the surface, and make sure the entire surface has come in contact with the sanitizing solution); allow the surface to air dry
question
When to clean and sanitize
answer
all food contact surfaces need to be cleaned and sanitized after they are used, before food handlers start working with a different type of food, any time food handlers are interrupted during a task and the items being used may have been contaminated, and after four hours if items are in constant contact
question
Cleaning and sanitizing stationary equipment
answer
instructions will usually be provided by equipment manufacturers; general rules: unplug the equipment; take the removable parts off the equipment; wash rinse and sanitize them by hand; run the parts through a dishwasher if allowed; scrape or remove food from the equipment surfaces; wash the equipment surfaces; use a cleaning solution prepared with an approved detergent; wash the equipment with the correct cleaning tool such as a nylon brush pad or cloth towel; rinse the equipment surface with clean water; use a cloth towel or other correct tool; sanitize the equipment surfaces; makes sure the sanitizer comes into contact with each surface (the concentration of the sanitizer must meet requirements; allow all surfaces to air dry; put unit back together
question
clean in place equipment
answer
some equipment is designed to have cleaning/sanitizing solution pumped through them; most hold TCS food so it must be cleaned and sanitized every day unless otherwise indicated; should check with regulatory requirements.
question
Machine dishwashing
answer
tableware/utensils are often cleaned/sanitized in a dishwashing machine; effectiveness of dishwashing program depends on well planned layout in the dishwashing area (including scraping and soaking area and enough space for both dirty and clean items); sufficient water supply (especially hot water); separate area for cleaning pots and pans; devices that indicate water pressure and temperature of the wash and rinse cycles; protected storage areas for clean tableware and utensils; and staff trained to operate and maintain the equipment and use the correct chemicals
question
High temperature machines
answer
use hot water to clean and sanitize; if the water is not hot enough items will not be sanitized; if the water is too hot it can bake food onto items; the temperature of the final sanitizing rinse must be at least 180*F; for stationary rack, single temperature machines it must be 165*F; the dishwasher must have a built in thermometer which checks water temperature at the manifold (where the water sprays into the tank)
question
Chemical sanitizing machines
answer
can clean and sanitize at much lower temperatures; different sanitizers require different temperatures (follow manufacturer's dishwashing guidelines); items washed/rinsed may take longer to air dry; need more room at the clean end of the machine and more tableware during peak periods.
question
Dishwashing Machine Operation
answer
operate according to manufacturer's recommendations, keep in good repair, follow guidelines
question
Guideline: Cleanliness
answer
clean machine as often as needed, check once a day, clear spray nozzle of food/foreign objects, remove mineral deposits, fill tanks with clean water, make sure detergent and sanitizer dispensers are filled
question
Guideline: Preparation
answer
scrape, rinse or soak items before washing/ presoak items with dried on food
question
Guideline: Loading
answer
use the correct dish racks; load so water spray will reach all surfaces; don't overload
question
Guideline: Air drying
answer
air dry all items, never use a towel (can recontaminate)
question
Guideline: Monitoring
answer
check water temperature, pressure, and sanitizing levels (take corrective actions if needed), ops using high temperature dishwashers must give staff easy/quick way to measure surface temperature of items being sanitized (must provide an irreversible record of the highest temperature reached during sanitizing to ensure dishwasher can reach correct sanitizing temps); can do this via maximum registering thermometers or heat sensitive tape
question
Manual dishwashing
answer
three compartment sink used to clean/sanitize large items;; clean and sanitize each sink/drain board before use, fill the first sink with detergent+water (water must be 110*F/follow manufacturer's recommendations), fill the second sink with clean water (not nec. if items will be spray rinsed and not dipped), fill third sink with water+sanitizer (hot water can be an alternative/follow manufacturer's recommendations), provide a clock w/a second hand to let food handlers know how long items have been in sanitizer
question
How to use a three compartment sink
answer
rinse scrape or soak items before washing them (if items are being soaked in the first sink change the solution when food bits start to build up or the suds are gone/do not soak wood surfaces in detergent), wash items in the first sink (use a brush, cloth towel, or nylon scrub pad to loosen dirt/change the water and detergent when the suds are gone or the water is dirty), rinse items in the second sink (spray or dip with water/remove all traces of food and detergent/change the rinse water when it becomes dirty or full of suds (if dipping)), sanitize items in the third sink (change when the temperature of the water or the sanitizer concentration falls below requirements/ never rinse items after sanitizing bc it could contaminate the surface (exception: when you are washing items in a dishwater that can safely rinse items after they have been sanitized)/ do not soak wood surfaces in sanitizer), air dry items on a clean and sanitized surface (place upside down for draining)
question
Storing tableware and equipment: storage
answer
store at least 6 inches off the floor to protect from dirt/moisture
question
Storing tableware and equipment: storage surfaces
answer
clean and sanitize drawers and shelves before storing
question
Storing tableware and equipment: Glasses and flatware
answer
store glasses and cups upside down on a clean and sanitized shelf or rack. store flatware and utensils with handles up. Staff can pick them up without touching food contact surfaces.
question
Storing tableware and equipment: Trays and carts
answer
clean and sanitize trays and carts used to carry clean tableware and utensils. check daily and clean as often as needed
question
Storing tableware and equipment: stationary equipment
answer
keep the food contact surfaces of stationary equipment covered until ready for use
question
Cleaning the premises
answer
to keep the operation clean you need the proper tools, supplies, and storage to prevent contamination. You will use hazardous chemicals so you will have to know how to use them to prevent injury, a master cleaning schedule is important so all cleaning efforts can come together, make sure staff are trained and monitor them to make sure they are following it.
question
Nonfood contact surfaces
answer
ie floors, ceilings, equipment exteriors, restrooms, and walls; must be cleaned regularly to prevent dust, dirt, and food residue from building up.
question
Cleaning up after people who get sick: Vomit and Diarrhea: Developing a Plan
answer
how you will contain liquid and airborne substances/how you will remove them from your operation, how you will clean/sanitize/and disinfect surfaces, when to throw out food that may have been contaminated, what equipment is needed to clean up these substances and how it will be cleaned/disinfected after use, when a food handler must wear personal protective equipment, how staff will be notified of the correct procedures for containing/cleaning/and disinfecting these substances, how to segregate contaminated areas from other areas, when staff must be restricted from working with/around food/excluded from working in the operation, how sick customers will be quickly removed from the operation, and how the cleaning plan will be implemented
question
Cleaning tools and supplies
answer
can contaminate surfaces if not handled correctly (can prevent this by cleaning the tools before storing them and by designating tools for tasks); color coding can be used to reinforce different uses; always use separate tools for cleaning the bathroom
question
Storing cleaning tools and supplies
answer
must be stored in an area away from food and prep areas; storage area should have good lighting so staff can see chemicals easily, have hooks for hanging mops/brooms/and other cleaning tools, utility sinks for filling buckets and washing cleaning tools, and a floor drain for dumping dirty water
question
What can you do to prevent contamination of cleaning tools and supplies?
answer
never clean mops, brushes, or other tools in sinks for handwashing, food prep, or dishwashing. Never dump mop water/other liquid waste in toilets/urinals
question
What should you consider when storing cleaning tools
answer
air dry towels overnight, hang mops/brooms/brushes on hooks to air dry, clean/rinse buckets/ let them air dry and store them with other tools
question
Wiping towels
answer
use towels for their intended uses, store wiping towels in a sanitizer solution btw uses, keep towels that came into contact with raw meat/fish/poultry separate from other cleaning towels
question
Using foodservice chemicals: storage and labeling
answer
store chemicals in their original containers away from food/prep areas, separate by spacing/partitioning, make sure the label on the container lists the common name of the chemical, make sure proper chemical is in the properly labeled bottle
question
Using foodservice chemicals: Disposal
answer
follow the instructions on the label and any requirements from your local regulatory authority.
question
MSDS (Material Safety Data Sheet)
answer
OSHA requires chemical manufacturers/suppliers to provide an MSDS for each hazardous chemical they sell; MSDS must contain the following info about the chemical: safe use/handling, physical/health/fire/reactivity hazards, precautions, appropriate personal protective equipment to wear while using the chemical, first aid info and steps to take in an emergency, manufacturer's name/address/phone number, hazardous ingredients/identity information.
question
How do operations obtain MSDS sheets
answer
sent with chemical shipment, can request from supplier/manufacturer, staff have a right to see MSDS for hazardous chemicals they work with (sheets must therefore be easily accessible)
question
Developing a cleaning program
answer
identify what the operation needs, create a master cleaning schedule, train staff to clean equipment/surfaces correctly, monitor the program to ensure its effectiveness.
question
Identifying cleaning needs
answer
review the facility to id all surfaces/tools/equipment that need cleaning, look at how the cleaning is currently done, get input from staff, ask them how/why they clean a certain way, find ways to improve current procedures, estimate time/skills needed for each task (some jobs may be done more efficiently by two or more people/others might require an outside contractor), determine cleaning frequency.
question
Creating a master cleaning schedule: what should be cleaned
answer
arrange the schedule so nothing is left out, list all cleaning jobs or one area or list jobs in order they should be performed, keep schedule flexible to adjust as needed.
question
Creating a master cleaning schedule: Who should clean it
answer
assign each task to a specific person, staff should clean their own areas, rotate other cleaning tasks to distribute them fairly
question
Creating a master cleaning schedule: when it should be cleaned
answer
clean/sanitize as needed, schedule major cleaning for when food will not be contaminated/food service interrupted (after closing), schedule work shifts to allow time to clean (rushed staff may cut corners in regards to cleaning)
question
Creating a master cleaning schedule: How it should be cleaned
answer
provide procedures for cleaning, guide staff through process, follow manufacturer's instructions when cleaning equipment, specify cleaning tools/chemicals by name, post instructions near the item to be cleaned
question
Choosing cleaning materials: correct tools and cleaners
answer
select tools/cleaners according to what is id in the master cleaning schedule, ask suppliers to suggest tools/supplies that are correct for your operation.
question
Choosing cleaning materials: Worn tools
answer
replace them because they may not clean/sanitize correctly
question
Choosing cleaning materials: Protective gear
answer
provide staff with appropriate protective gear
question
Implementing the cleaning program: kickoff meeting
answer
introduce the program to staff, explain reason behind it, stress importance of cleanliness to food safety (if they understand why they are doing something they will be more likely to do it)
question
Implementing the cleaning program: Training
answer
schedule adequate time for training, work with small groups or conduct training by area, show staff how to clean equipment/surfaces in each area.
question
Implementing the cleaning program: motivation
answer
provide motivation/reward for a job well done (ie awards) and tie performance to specific goals/measurements (achieving high marks during regulatory inspections)
question
Implementing the cleaning program: Monitoring
answer
monitor to make sure it is working- supervise daily cleaning routines, check the daily completion of all cleaning tasks against the master cleaning schedule, modify the master schedule to reflect changes in menu, procedures, or equipment, request staff input on improving the program