OBJECTIVE
Upon completion of the experiment, you will be able to:
1. Contrast the accuracy of home measuring equipment and weighing ingredients on the balance.
2. Discuss the merits of sifting dried products when it is weighed.
3. Identify the problems associated with measuring solid fats and sugar using home measuring equipment.
4. Compare the accuracy of volume measurements using a home measuring cup and a graduated cylinder.
5. Evaluate the aesthetic values of the cookies based on the subjective testing.
INTRODUCTION
Due to the chemistry involved in baking, the precise measurements for both liquid and dry ingredients are important. The correct balance of ingredients will not only ensure that food turns out tasting great, but also that ratios of ingredients produce the proper consistency and density.
The most common measurements of the ingredients at home are using cups and spoons. The ingredients like flour, rice, shortening, butter and sugar which usually used in larger quantity are measured by using cups. The measurements used are 1 cup, ½ cup and ¼ cup. The measurements of cups are carried out by lightly spooned the dry ingredients into the graduated measuring cup until very full then scrape level using straight side of a metal spatula for 1 cup, ½ cup and ¼ cup. After that, weight the ingredients on the balance to take the readings.
While the ingredients like salt and baking powder which are used in smaller quantity will be measured by using spoons which are tablespoon or teaspoon. The measurements of the spoons used are 1 tablespoon, 1 teaspoon, ½ teaspoon and ¼ teaspoon. The ingredient is taken by spooned it in the spoon then leveled it with the metal spatula then measures it in the balance and record the readin...
... middle of paper ...
...g great, but also that ratios of ingredients produce the proper consistency and density. Therefore, precise measurements for ingredients in order to produce a great taste food are important.
For the liquid measures like oils and water, the correct eye level on reading the measurements is important because the wrong eye level will cause the reading of measurement inaccurate. The measuring cup should be placed in the flat surface and take the readings with your eye at the level of the liquid. Water surface curves downward, so use the bottom of the curve for accurate measurement and not the edge that is against the measuring cup.
Since the hedonic test is used to describe the degree of consumer’s acceptance on a product. Therefore, it should be carried out to the category of targeted consumers so that the results get can best describe the needs of the consumers.
1.Mass out desired amount of baking soda. Each subsequent trial will use one gram more.
When the liquid level is above the calibration line on the pipette, remove the bulb quickly and put your thumb or index finger over the pipette. Carefully “roll” finger to the side and allow the liquid to drop until the meniscus is level with the mark. Then hold the pipette over the flask to receive the liquid and remove the finger. Allow the liquid to drain out.
The first procedure requires one 10mL volumetric pipette, one 50mL buret, two small beakers, one labeled “vinegar” and the other labeled “NaOH”, three 250mL Erlenmeyer flasks, labeled one, two and three, and one large beaker for waste collection. Collect 50mL of vinegar in the beaker labeled “vinegar” and record the brand and listed concentration of vinegar. Then collect about 60mL of NaOH in the beaker labeled “NaOH” and record its concentration.
We noticed changes in the weights of our equipment which caused our measurements to be incorrect. For instance, our filter paper went from a weight of 1.08 Grams to a weight of 1.11 Grams. This means that when we filtered our mixture, salt and/or sand was trapped in the filter paper which skewed our data by .03 grams. Also, the weight of our Dixie cup changed because as we were stirring the mixture we noticed flakes coming off the Dixie cup. Those flakes ended
To start the recipe, the following supplies will be needed; a medium bowl, knives, measuring spoons, a cutting board, and a spatula to stir the ingredients, a regular spoon can be used
We take one potato and cut from it three even potato chips. These potato chips will never be the same weight as we had to cut them ourselves and it is too inaccurate. So we decided to calculate the percentage gain/loss as this would mean that the measurements are all on the same scale. We then weighed the potato chips on a very sensitive weighing scale. These weighing scales can weigh things to a hundredth of a gram so our measurements are very accurate.
Weighing Scales Stop Watch 50cm3 Distilled Water (x25).. 2 1cm3 syringe In this experiment, a digital weighing scale has been chosen to measure the moisture content of the wheat grain seeds. This can be done by weighing the mass of the seed before it comes in contact with water, and then weighing it again after exposure to water. The mass of the seed before exposure can then be subtracted from the mass after exposure, which will then give the total moisture content of the seed.
The EatSmart Precision Pro Kitchen Scale has two buttons. One button to turn the scale on and off, and the other to select the measurement unit you want to use. They include grams, kilograms, ounces, and pounds. You can measure up to eleven pounds using this scale. One feature I really like is the Tare option.
- Each teaspoon may not have been equal. Measurements were made based on judgment and not exact measurements.
The purpose of our very first lab was to identify the density of tap water and how density can be used to recognize unknown substances. My group and I hypothesized that the unrecognized density would be 0.79g. Going into this experiment we had no clue as to which equations to use. As we read carefully through the packet, we learned to use density = mass/volume to conclude the results of the different densities. During experiments potential error may occur. While doing this project, our pipets could’ve had an extra air bubble and the scale could’ve been thrown off. All of these examples can result in a less accurate answer. Having the knowledge to find the density of liquids is very important if you are involved in the biology, medical, or chemistry field to measure liquids.
Part A of the experiment, we were measuring the density of water. In this part, we measured by difference by measuring the mass of the empty graduated cylinder which was 46.35 grams and then added 25.0 milliliters of water to it. When subtracting by difference, our mass of the water was 25.85 grams. This was close to the measurements of the water added to the graduated cylinder. The density of the water was 1.0 grams/milliliters.
Making homemade Christmas cookies is a tradition that is cherished by many people and is an popular activity during the holidays. Many kids will also set cookies and milk out for Santa. However, various cookie recipes call for butter and eggs. If you want to make vegan Christmas cookies, then a variety of recipes are available. This is a great option for a healthy snack and can be an activity to do if you when kids are off from school.
batter. Well she was in a hurry, she had beds to make and drapes to clean so,
the proper way to count a fluid on a hemacytometer. Recently our lab purchased two new