f066d97e814d7ab1edb16422034a7037.ppt
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Culinary Management Yield Factors
Introduction z. You know from experience that when a recipe calls for a certain amount of meat, vegetables or fruit, that you will need to buy more than what is required.
Introduction z. This is necessary because: Stems and/or tips must removed from Peeling is required for foods meat. Fat needs to be trimmed fromsuch as certain vegetables, and fruit. bananas, oranges, and potatoes.
Introduction z. Because of the trimming and cutting, you will always end up with less product than when you started.
Introduction z. The amount of a food product that comes from a store or supplier is called the AP Weight. z. AP is an abbreviation for “As Purchased”. z. The AP Weight describes the amount of a food in unprepared form.
Introduction z. The amount of a food product required by a recipe is called the EP Weight. z. EP is an abbreviation for “Edible Portion”. z. EP Weight describes the amount of food in prepared (ready to eat) form.
Introduction z. For a given product there is usually a predictable amount that will be trimmed away. z. For example, with carrots, usually 75% by weight remains after trimming. z. The 75% figure is called a Percentage Yield.
Introduction z. Percentage yields can help you with purchasing decisions. z. By having a recipe with the required EP Weight, you can use the percentage yield to compute the AP Weight. IMy recipe percentagelb of carrots. know the requires 3 yield for carrots How many pounds do I have lbs of is 75%, therefore I must buy 4 to buy in order to make the recipe. carrotsto have enough?
Introduction z. You can also use percentage yields to determine if the amount of a given product that you have on-hand will be enough to make a given recipe. The yield percentage for broccoli is about 70%. That means after trimming I have 5 lbs (AP) of broccoli that needs only 3. 5 lbs will be enough forappearsa to be used. Is this left. So it use in that I will have a little lbs less broccoli recipe that requires 4 bit of broccoli? than what is required.
Introduction z. In this lesson you will learn how to: Compute percentage yield. Use percentage yield to compute AP weight. Use percentage yield to compute EP weight.
Percentage Yield z. Let’s take a moment to learn how to compute the percentage yield for a given product.
Percentage Yield z. To compute percentage yield: y. Weigh the product as purchased to determine AP Weight. This is done before any trimming or peeling. AP weight = 14 oz
Percentage Yield z. To compute percentage yield: y. Then weigh the product after trimming. The amount remaining is the EP (Edible Portion). EP weight = 11 oz
Percentage Yield z. To finish, compute the percentage yield (sometimes called the EP %) using the standard percent formula. The AP weight is the base (B): 14 oz 14
Percentage Yield z. To finish, compute the percentage yield (sometimes called the EP %) using the standard percent formula. The AP weight is the base (B): 14 oz The EP weight is the part (P): 11 oz 11 14
Percentage Yield z. Use cross-multiplication to solve for R. Step 1) Multiply on the diagonal. 11 x 100 = 1100
Percentage Yield z. Use cross-multiplication to solve for R. Step 1) Multiply on the diagonal. 11 x 100 = 1100 Step 2) Divide this result by the number that is on the diagonal with the unknown. 1100 ÷ 14 = 79%
Percentage Yield z. Based upon this kitchen experiment, it appears that the percentage yield for these carrots is 79%.
Percentage Yield: REVIEW z. To compute Percentage Yield: 1. ) Weigh the food item as-purchased (AP weight) 2. ) Trim the food as necessary, then weigh it again (EP weight) 3. ) Put the EP weight and AP weight results into the percent-solving formula:
Compute Percentage Yield
Percentage Yield: Sample Problem z. What is the percentage yield for this situation? y. Eggplant x. AP Weight = 5 lbs (as purchased) x. EP Weight = 3. 8 lbs (after trimming) x. Percentage Yield = ? Use the percent-solving formula: 5
Percentage Yield: Sample Problem z. What is the percentage yield for this situation? y. Eggplant x. AP Weight = 5 lbs (as purchased) x. EP Weight = 3. 8 lbs (after trimming) x. Percentage Yield = ? Use the percent-solving formula: 3. 8 5
Percentage Yield: Sample Problem z. Eggplant x. AP Weight = 5 lbs (as purchased) x. EP Weight = 3. 8 lbs (after trimming) x. Percentage Yield = ? 1 st: Cross-multiply: 3. 8 x 100 = 380
Percentage Yield: Sample Problem z. Eggplant x. AP Weight = 5 lbs (as purchased) x. EP Weight = 3. 8 lbs (after trimming) x. Percentage Yield = ? 1 st: Cross-multiply: 3. 8 x 100 = 380 2 nd: Divide: 380 ÷ 5 = 76%
Percentage Yield: Sample Problem z. Eggplant x. AP Weight = 5 lbs (as purchased) x. EP Weight = 3. 8 lbs (after trimming) x. Percentage Yield = 76%
Compute Percentage Yield
Percentage Yield: Practice Problem z. What is the percentage yield for this situation? Solve the problem then click to see the answer. y. Beets x. AP Weight = 10 lbs (as purchased) x. EP Weight = 4. 5 lbs (after trimming) x. Percentage Yield = ? Use the percent-solving formula: 10
Percentage Yield: Practice Problem z. What is the percentage yield for this situation? Solve the problem then click to see the answer. y. Beets x. AP Weight = 10 lbs (as purchased) x. EP Weight = 4. 5 lbs (after trimming) x. Percentage Yield = ? Use the percent-solving formula: 4. 5 10
Percentage Yield: Sample Problem z. Beets x. AP Weight = 10 lbs (as purchased) x. EP Weight = 4. 5 lbs (after trimming) x. Percentage Yield = ? 1 st: Cross-multiply: 4. 5 x 100 = 450
Percentage Yield: Practice Problem z. Beets x. AP Weight = 10 lbs (as purchased) x. EP Weight = 4. 5 lbs (after trimming) x. Percentage Yield = ? 1 st: Cross-multiply: 4. 5 x 100 = 450 2 nd: Divide: 450 ÷ 10 = 45%
Percentage Yield: Practice Problem z. Beets x. AP Weight = 10 lbs (as purchased) x. EP Weight = 4. 5 lbs (after trimming) x. Percentage Yield = 45%
Percentage Yields z. It is not necessary to conduct a kitchen experiment every time you want to know a percentage yield. z. Textbooks and other sources often have several pages of percentage yields. Food Scien ce
Introduction
Calculate AP Weight z. Of what use are percent yield numbers? Percent yield predicts the amount of trimming loss to expect for a given food item. Because of this, you can make informed decisions about how much of a given product to purchase (or gather from a storage area) in order to have enough for a recipe.
Compute AP Weight
Calculate AP Weight: Sample Problem z. A recipe calls for: 5 lbs of green beans 1. 5 lbs of mushrooms. How many pounds of each must you start with in order to have enough for the recipe?
Calculate AP Weight: Sample Problem z. A recipe calls for: 5 lbs of green beans Reminder: These are EP weights. 1. 5 lbs of mushrooms. Our job is to calculate the AP weight. How many pounds of each must you start with in order to have enough for the recipe?
Calculate AP Weight: Sample Problem z. To calculate AP weight you need the percentage yields for beans and mushrooms. z. According to a reference sheet: ybeans ymushrooms 88% yield 90% yield
Calculate AP Weight: Sample Problem Beans EP Weight = 5 lbs Percent Yield = 88% AP Weight = ? 5 Use this formula to solve for the AP Weight.
Calculate AP Weight: Sample Problem Beans EP Weight = 5 lbs Percent Yield = 88% AP Weight = ? 5 88
Calculate AP Weight: Sample Problem Beans EP Weight = 5 lbs Percent Yield = 88% AP Weight = ? 1 st: Cross-multiply: 5 x 100 = 500
Calculate AP Weight: Sample Problem Beans EP Weight = 5 lbs Percent Yield = 88% AP Weight = ? 1 st: Cross-multiply: 5 x 100 = 500 2 nd: Divide: 500 ÷ 88 = 5. 7 lbs
Calculate AP Weight: Sample Problem Beans EP Weight = 5 lbs Percent Yield = 88% AP Weight = 5. 7 lbs
Calculate AP Weight: Sample Problem Beans Mushrooms EP Weight = 5 lbs Percent Yield = 88% AP Weight = 5. 7 lbs EP Weight = 1. 5 lbs Percent Yield = 90% AP Weight = ? Once again, use the percentsolving formula to calculate the AP Weight. 1. 5
Calculate AP Weight: Sample Problem Beans Mushrooms EP Weight = 5 lbs Percent Yield = 88% AP Weight = 5. 7 lbs EP Weight = 1. 5 lbs Percent Yield = 90% AP Weight = ? 1. 5 90
Calculate AP Weight: Sample Problem Beans Mushrooms EP Weight = 5 lbs Percent Yield = 88% AP Weight = 5. 7 lbs EP Weight = 1. 5 lbs Percent Yield = 90% AP Weight = ? 1 st: Cross-multiply: 1. 5 x 100 = 150
Calculate AP Weight: Sample Problem Beans Mushrooms EP Weight = 5 lbs Percent Yield = 88% AP Weight = 5. 7 lbs EP Weight = 1. 5 lbs Percent Yield = 90% AP Weight = ? 1 st: Cross-multiply: 1. 5 x 100 = 150 2 nd: Divide: 150 ÷ 90 = 1. 7 lbs
Calculate AP Weight: Sample Problem Beans Mushrooms EP Weight = 5 lbs Percent Yield = 88% AP Weight = 5. 7 lbs EP Weight = 1. 5 lbs Percent Yield = 90% AP Weight = ? lbs 1. 7
Calculate AP Weight
Calculate AP Weight Practice Problems z. Determine the AP Weight for each of the problems below. z When you have solved the problems, click to see the answers. Peas EP Weight = 3. 5 lbs Percent Yield = 40% AP Weight = ? Broccoli EP Weight = 6 lbs Percent Yield = 65% AP Weight = ?
Calculate AP Weight Practice Problems Peas EP Weight = 3. 5 lbs Percent Yield = 40% AP Weight = ? Use the percent-solving formula. 3. 5 Put the EP Weight and Percent Yield numbers in the correct positions, then solve the equation.
Calculate AP Weight Practice Problems Peas EP Weight = 3. 5 lbs Percent Yield = 40% AP Weight = ? 3. 5 40 Put the EP Weight and Percent Yield numbers in the correct positions, then solve the equation.
Calculate AP Weight Practice Problems Peas EP Weight = 3. 5 lbs Percent Yield = 40% AP Weight = ? 8. 75 lbs 3. 5 40 B = 8. 75 lbs Put the EP Weight and Percent Yield numbers in the correct positions, then solve the equation.
Calculate AP Weight Practice Problems Broccoli EP Weight = 6 lbs Percent Yield = 65% AP Weight = ? Use the percent-solving formula. 6 Put the EP Weight and Percent Yield numbers in the correct positions, then solve the equation.
Calculate AP Weight Practice Problems Broccoli EP Weight = 6 lbs Percent Yield = 65% AP Weight = ? 6 65 Put the EP Weight and Percent Yield numbers in the correct positions, then solve the equation.
Calculate AP Weight Practice Problems Broccoli EP Weight = 6 lbs Percent Yield = 65% AP Weight = ? . 2 lbs 9 6 65 B = 9. 2 lbs Put the EP Weight and Percent Yield numbers in the correct positions, then solve the equation.
Introduction
Calculate EP Weight z. You have just learned how to use percent yield numbers to compute AP Weight when a recipe weight (EP Weight) is given. z. Now let’s learn how to compute EP Weight when you know the AP Weight and the percent yield.
Calculate EP Weight z. If you know how to calculate EP Weight, you will be able to predict how much edible food will remain after trimming.
Compute EP Weight
Calculate EP Weight: Sample Problem z. You have 20 lbs of apples in your storeroom. z. After trimming, how many pounds will be left? To answer this question you need to know the percent yield for apples. According to one reference, it is about 75%.
Calculate EP Weight: Sample Problem Apples AP Weight = 20 lbs Percent Yield = 75% EP Weight = ? Use this formula to solve for the EP Weight. 20 Note that the 20 lb amount must occupy the B (base) position since it is an AP Weight.
Calculate EP Weight: Sample Problem Apples AP Weight = 20 lbs Percent Yield = 75% EP Weight = ? 75 20
Calculate EP Weight: Sample Problem Apples AP Weight = 20 lbs Percent Yield = 75% EP Weight = ? 1 st: Cross-multiply: 20 x 75 = 1500
Calculate EP Weight: Sample Problem Apples AP Weight = 20 lbs Percent Yield = 75% EP Weight = ? 1 st: Cross-multiply: 20 x 75 = 1500 2 nd: Divide: 1500 ÷ 100 = 15 lbs
Calculate EP Weight: Sample Problem Apples AP Weight = 20 lbs Percent Yield = 75% EP Weight = 15 lbs ?
Calculate EP Weight
Calculate EP Weight Practice Problems z. Determine the EP Weight for each of the problems below. y. When you have solved the problems, click to see the answers. Kiwi Fruit Bananas AP Weight = 12 lbs Percent Yield = 80% EP Weight = ? AP Weight = 4 lbs Percent Yield = 70% EP Weight = ?
Calculate EP Weight Practice Problems Kiwi Fruit AP Weight = 12 lbs Percent Yield = 80% EP Weight = ? Use the percent-solving formula. 12 Put the AP Weight and Percent Yield numbers in the correct positions, then solve the equation.
Calculate EP Weight Practice Problems Kiwi Fruit AP Weight = 12 lbs Percent Yield = 80% EP Weight = ? 80 12 Put the AP Weight and Percent Yield numbers in the correct positions, then solve the equation.
Calculate EP Weight Practice Problems Kiwi Fruit AP Weight = 12 lbs Percent Yield = 80% EP Weight = 9. 6 lbs ? 80 12 P = 9. 6 lbs Put the AP Weight and Percent Yield numbers in the correct positions, then solve the equation.
Calculate EP Weight Practice Problems Bananas AP Weight = 4 lbs Percent Yield = 70% EP Weight = ? Use the percent-solving formula. 4 Put the AP Weight and Percent Yield numbers in the correct positions, then solve the equation.
Calculate EP Weight Practice Problems Bananas AP Weight = 4 lbs Percent Yield = 70% EP Weight = ? 70 4 Put the AP Weight and Percent Yield numbers in the correct positions, then solve the equation.
Calculate EP Weight Practice Problems Bananas AP Weight = 4 lbs Percent Yield = 70% EP Weight = 2. 8 lbs ? 70 4 P = 2. 8 lbs Put the AP Weight and Percent Yield numbers in the correct positions, then solve the equation.
Putting it all together: Final Practice Problem z. Use the percent yield chart to help answer the following questions. y. Click to see the answers. Lettuce Apples 75% Bananas Carrots Lettuce Peas Potatoes Pineapple 70% 80% 75% 40% 80% 50% EP Weight = 12 lbs AP Weight = ? Pineapple AP Weight = 4 lbs EP Weight = ?
Putting it all together: Final Practice Problem Apples Bananas Carrots Lettuce Peas Potatoes Pineapple 75% 70% 80% 75% 40% 80% 50% To begin, locate the percent yield of lettuce on the chart. Lettuce EP Weight = 12 lbs Percent Yield = 75% AP Weight = ?
Putting it all together: Final Practice Problem Apples Bananas Carrots Lettuce Peas Potatoes Pineapple 75% 70% 80% 75% 40% 80% 50% Lettuce EP Weight = 12 lbs Percent Yield = 75% AP Weight = ? Next, set-up the percent-solving formula. 75
Putting it all together: Final Practice Problem Apples Bananas Carrots Lettuce Peas Potatoes Pineapple 75% 70% 80% 75% 40% 80% 50% Lettuce EP Weight = 12 lbs Percent Yield = 75% AP Weight = ? Next, set-up the percent-solving formula. 12 75
Putting it all together: Final Practice Problem Apples Bananas Carrots Lettuce Peas Potatoes Pineapple 75% 70% 80% 75% 40% 80% 50% Lettuce EP Weight = 12 lbs Percent Yield = 75% AP Weight = 16 lbs ? Solving this set-up gives an answer of: 12 75 16 lbs
Putting it all together: Final Practice Problem Apples Bananas Carrots Lettuce Peas Potatoes Pineapple 75% 70% 80% 75% 40% 80% 50% To begin, locate the percent yield of pineapple on the chart. Pineapple AP Weight = 4 lbs Percent Yield = 50% EP Weight = ?
Putting it all together: Final Practice Problem Apples Bananas Carrots Lettuce Peas Potatoes Pineapple 75% 70% 80% 75% 40% 80% 50% Pineapple AP Weight = 4 lbs Percent Yield = 50% EP Weight = ? Next, set-up the percent-solving formula. 50
Putting it all together: Final Practice Problem Apples Bananas Carrots Lettuce Peas Potatoes Pineapple 75% 70% 80% 75% 40% 80% 50% Pineapple AP Weight = 4 lbs Percent Yield = 50% EP Weight = Next, set-up the percent-solving formula. 50 4
Putting it all together: Final Practice Problem Apples Bananas Carrots Lettuce Peas Potatoes Pineapple 75% 70% 80% 75% 40% 80% 50% Pineapple AP Weight = 4 lbs Percent Yield = 50% EP Weight = 2 lbs Solving this set-up gives an answer of: 50 4 2 lbs
The End z. Congratulations! You have finished the presentation.