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unhygienic (not cleaned properly (Low efficiency of cleaning (Cup is…
unhygienic
not cleaned properly
Low efficiency of cleaning
hazard prevents thorough cleaning
Cup is difficult to clean
Blind grooves/corners/edges
Shape of the cup
Aesthetically pleasing
Structure
Psychological pressure
Detergent used is bad
Hard water
Source of water is contaminated
Water used for cleaning is bad
Not replacing the water very often
Device used for cleaning loses efficiency
Abrasive forces not applied properly
Less wear of the cup material
Service life increases
Cleaner becomes lazy
Fatigue
Number of workers
Working conditions
Motivation
Pay
Costs
Improper pest control
Material adheres to the cup surface
Low cleaning time.
Grooves
Stability
Broken
Temp.
Heavy
Density
Thickness
Less friction b/w container & tray
Repeated Impact
lack of skill in handling
Hard to grip
Brittle
Difficult to repair
Carelessness of Customer
Structure
Design causes stress concentration
Center of gravity is higher
Uneven distribution of weight of container
Carelessness of waiter
Movement of waiter
Surface of table
Weight of cup
Price of the cup
Breakage
High Temp. of Surface
Amount of Beverage
Stain
Cleaning
Time for filling& delivery
Profit
Movement of Waiter
Structure
Size of Container
Spillage
Grip
High temperature of surface
Weight of beverage in the cup
Friction
Supporting Structure (handle)
Low contact area when force applied
Structure
No Engraving
Worn over time
gloves that are a part of uniform have less gripping capability
Oily hands
Heated more than required
Cyclic Thermal Stress
Cracks
Durability
High Thermal Conductivity
Engraving increase heat transfer
Temp. of Beverage
Customer Satisfaction
Material of the cup has a high reactivity with environment
Stealing
Maintenance
Atmosphere
Sharp edges