A hundredth of the base unit has the prefix centi , for example 1 centimeter cm equals to 0. One thousandth of the base unit has the prefix milli , for example 1 millimeter mm equals to 0. After that, the naming schema applies in steps of the factor 0.
Again, there is a scientific notation for small numbers such as 1E-6 for 0. From an European point of view, the U. The difficulty comes mainly from the fact, that larger units seem to be an arbitrary multiple of the next smaller unit. For example, 3 feet equal to 1 yard, 1 foot equals to 12 inches, so 1 yard equals to 36 inches. The same is true for volume, where 1 gallon equals to 4 quarts, 8 pints, 16 cups, tablespoons or teaspoons.
Interestingly, there are some areas, where U. For example, 24 premade tart shells would be called for if the final product is to be 24 filled tart shells. Volume measurement is usually used with liquids or fluids because such items are awkward to weigh. It is also used for dry ingredients in home cooking, but it is less often used for dry measurement in the industry.
Volume is often the measure used when portioning sizes of finished product. For example, portion scoops are used to dole out vegetables, potato salad, and sandwich fillings to keep serving size consistent. Ladles of an exact size are used to portion out soups and sauces. Often scoops and ladles used for portioning are sized by number.
On a scoop, such a number refers to the number of full scoops needed to fill a volume of one litre or one quart. Ladles are sized in millilitres or ounces. Weight is the most accurate way to measure ingredients or portions. When proportions of ingredients are critical, their measurements are always given in weights.
This is particularly true in baking where it is common to list all ingredients by weight, including eggs which, as mentioned earlier, in almost all other applications are called for by count. Whether measuring solids or liquids, measuring by weight is more reliable and consistent.
Weighing is a bit more time consuming and requires the use of scales, but it pays off in accuracy. Digital portion scales are most commonly used in industry and come in various sizes to measure weights up to 5 kg 11 lbs.
This is adequate for most recipes, although larger operations may require scales with a larger capacity. The reason weight is more accurate than volume is because it takes into account factors such as density, moisture, and temperature that can have an effect on the volume of ingredients.
For example, mL 1 cup of brown sugar measured by volume could change drastically depending on whether it is loosely or tightly packed in the vessel. On the other hand, grams Even flour, which one might think is very consistent, will vary from location to location, and the result will mean an adjustment in the amount of liquid needed to get the same consistency when mixed with a given volume.
Another common mistake is interchanging between volume and weight. There is no other ingredient that can be measured interchangeably because of gravity and the density of an item.
Every ingredient has a different density and different gravitational weight, which will also change according to location. This is called specific gravity. Water has a specific gravity of 1. Liquids that are lighter than water such as oils that float on water have a specific gravity of less than 1.
Your Message required. Previous Next. Here are a few things to remember that will come in handy day today: 1 mile equals 1. Here are some more handy conversions for temperature: 0 degrees Celsius is equal to 32 degrees Fahrenheit.
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