An advantage to using an expert?
can evaluate complex product and give specific information about quality grade
what is a disadvantage of using an expert?
different mental standards, not same as consumer
what is a advantage of in/out method?
simple
what is a disadvantage of in/out method
non-directional
why use the "just right" scale?
get magnitude and direction
why use a standard for sensory analysis?
gives a target goal
When would sensory analysis without a standard be used?
When you're creating a standard
What are the criteria for a product standard?
Represents product characteristics, can be obtained, maintained, and reproduced
What is done if a real food product can't be used as a standard?
Plastic pieces, color standards, detailed written criteria
What makes an "expert"?
Unclear/not well-defined
What are some attributes that could be included in a written standard (ie what should be evaluated)?
Attributes that vary in production, attributes that drive consumer acceptance, attributes that sets the product apart from a marketing perspective
How are the specifications (ie limits) set for determining if a product passes/fails a sensory test?
Management decides, consumer evaluation (compare attributes to other samples and evaluate acceptability then analyze the relationship
USDA grades what
-fresh fruit and veggies
-grains and legumes
-processed fruits and veggies
-dairy products
-fresh meat
inspection and grading aids in
1. establish loan values
2. in plant quality control programs
3. buyer/seller determine if contracts/order have been met
4. settle claims of damage
5. guarantee constant quality
types of inspection
1 lot
2. approved plant-lot
3. continuous
4. pack certification
quality standard sources
-government (FDA, USDA AMS, DOD< USDA school lunch program
-state
-trade organization
look at what when inspecting eggs
shell appearance
internal appearance
broken-out appearnce
looking at what when inspecting beef
marbling
maturity
most common grading factors
appearance-color, size and shape
-defects by weight, count, length, appearance
practically means
-5% variation by weight or count
practically is what grade
A
reasonably means
10% variation by weight or by count
reasonably is what grade
B(choice or standard)
fairly means
20% variation by weight or by count
fairly is what grade
C( unless notes otherwise in the standard?