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Originally Posted by chefcrystal I get that. I need it for an assignment at school. My teacher is saying that if you need 8ea tomatoes for a recipe, you wouldn't use the yield % since the recipe is not giving an exact weight. In that kind of situation, when would you use the yield %? I'm guessing that it's for when an item doesn't produce the exact amount of what you expect it to have inside. Such as Orange Supremes. Do you think I'm on the right track? |
Yes your on the right track, here's an example of what I hope will help you without doing your assignment for you

For many purchases, including lets say prime meats, it's important to consider the yield that will be available from the "gross" amount purchased. This comes from raw and cooked yield tests.Your [B]AP[B]weight and
EP weight are letters I'm sure your being taught.Lets say a rib of beef weighs 20 # AP, after trimming and cooking your EP is 12 #.Fresh veggies like the tomatoes you mention, fresh pea's carrots, potatoes have a much lower yield after shucking, peeling etc. So to determine proper purchasing quantities, we need to be aware of these losses and buy accordingly.
To convert AP to EP the yield % is used. Lets say for the beef it would roll out like this 12/20 3, or 0.60.
Your a caterer, your doing a prime rib dinner for 100 covers, the EP is 9 oz, how many 3 of beef should you buy? You need to convert the portion size (9)oz to a decimal by dividing the portion size by 16 (once per #)
The formula is # of portions times the portion size (decimal)/ yield
or
quantity = 100 times 0.562/0.6 = 93.7 # so 93.7 3 should be purchased to prepare 100, 9 once portions.
I hope this makes sense