Coffee Education
To determine the amount of water to be used with fractional amounts of coffee, multiply the weight of the coffee by the following factors: 16 (0.0625 is the inverse factor) to get fluid ounces of water: 16.6945 (0.0599 is the inverse factor) for grams to get CCs of water.
For example: if you have 1.2 ounces of coffee (by weight), you would multiply 1.2 times 16.0 to get 19.2 fluid ounces of water needed. If you’re using the metric system, 92.6 grams of coffee would require 1562 CCs (1.56 liters) of water. Use the inverse factor to determine the amount of coffee to use with an unlisted amount of water. In other words, you multiply the inverse factor times the amount of water to determine the weight of the coffee to be used.
Standard Brewing Ratio
| Cups of Coffee |
COFFEE TO BE USED | WATER TO BE USED | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BY WEIGHT | BY MEASURE | ||||||||||||
| Ounces | Grams | Tea Spoons |
Table Spoons |
Cups | Fluid Ounces |
Cups | Pints | Quarts | 1/2 Gal | CCs (milliliters) |
Liters | ||
| 1 | 0.38 | 10.6 | 6 | 2 | 1/8 | 6 | 3/4 | 3/8 | 3/16 | 3/32 | 177 | 0.18 | |
| 2 | 0.75 | 21.3 | 12 | 4 | 1/4 | 12 | 1 1/2 | 3/4 | 3/8 | 3/16 | 355 | 0.35 | |
| 3 | 1.13 | 31.9 | 18 | 6 | 3/8 | 18 | 2 1/4 | 1 1/8 | 9/16 | 9/32 | 532 | 0.53 | |
| 4 | 1.50 | 42.5 | 24 | 8 | 1/2 | 24 | 3 | 1 1/2 | 3/4 | 3/8 | 710 | 0.71 | |
| 5 | 1.88 | 53.2 | 30 | 10 | 5/8 | 30 | 3 3/4 | 1 7/8 | 15/16 | 15/32 | 887 | 0.89 | |
| 6 | 2.25 | 63.8 | 36 | 12 | 3/4 | 36 | 4 1/2 | 2 1/4 | 1 1/8 | 9/16 | 1065 | 1.06 | |
| 7 | 2.63 | 74.4 | 42 | 14 | 7/8 | 42 | 5 1/4 | 2 5/8 | 1 5/16 | 21/32 | 1242 | 1.24 | |
| 8 | 3.00 | 85.1 | 48 | 16 | 1 | 48 | 6 | 3 | 1 1/2 | 3/4 | 1420 | 1.42 | |
| 9 | 3.38 | 95.7 | 54 | 18 | 1 1/8 | 54 | 6 3/4 | 3 3/8 | 1 11/16 | 27/32 | 1597 | 1.60 | |
| 10 | 3.75 | 106.3 | 60 | 20 | 1 1/4 | 60 | 7 1/2 | 3 3/4 | 1 7/8 | 15/16 | 1775 | 1.77 | |
| 11 | 4.13 | 116.9 | 66 | 22 | 1 3/8 | 66 | 8 1/4 | 4 1/8 | 2 1/16 | 1 1/32 | 1952 | 1.95 | |
| 12 | 4.50 | 127.6 | 72 | 24 | 1 1/2 | 72 | 9 | 4 1/2 | 2 1/4 | 1 1/8 | 2130 | 2.13 | |
| Factors for units of measure to get Fluid Ounces needed. | ||
| Multiply unit of measure times Fluid Ounces | ||
| Teaspoons | Tablespoons | Cups |
| 1 | 3 | 48 |
| Inverse Factors for Fluid Ounces to get measure of coffee needed. | ||
| Multiply Fluid Ounces by Inverse Factor to get measure of coffee needed. | ||
| Teaspoons | Tablespoons | Cups |
| 1 | 0.3333 | 0.0208 |
It is important to know that measuring by volume is not precise due to the fact that different coffees can have different densities. Measuring by weight is the only way to be precise.
| Volume Conversions | ||||||
|---|---|---|---|---|---|---|
| To convert Fluid Ounces to: | multiply # of FL OZ by: | Inverse factors | To convert CCs to: | multiply # of CCs by: | Inverse factors | |
| Teaspoons | 6 | 0.1667 | Teaspoons | 20.284 | 0.0493 | |
| Tablespoons | 2 | 0.5 | Tablespoons | 6.7613 | 0.1479 | |
| Fluid Ounces | 1 | 1 | Fluid Ounces | 3.3807 | 0.2958 | |
| 1/8 Cups | 1 | 1 | 1/8 Cups | 3.3807 | 0.2958 | |
| 1/4 Cups | 0.5 | 2 | 1/4 Cups | 1.6903 | 0.5916 | |
| 1/3 Cups | 0.375 | 2.6667 | 1/3 Cups | 1.2678 | 0.7888 | |
| 1/2 Cups | 0.25 | 4 | 1/2 Cups | 0.8452 | 1.1832 | |
| 2/3 Cups | 0.1875 | 5.3333 | 2/3 Cups | 0.6339 | 1.5776 | |
| 3/4 Cups | 0.1667 | 6 | 3/4 Cups | 0.5634 | 1.7748 | |
| Cups | 0.125 | 8 | Cups | 0.4226 | 2.3664 | |
| Pints | 0.0625 | 16 | Pints | 0.2113 | 4.7328 | |
| Quarts | 0.0313 | 32 | Quarts | 0.1056 | 9.4656 | |
| 1/2 Gallons | 0.0156 | 64 | 1/2 Gallons | 0.0528 | 18.9312 | |
| Gallons | 0.0078 | 128 | Gallons | 0.0264 | 37.8624 | |
| CCs (Milliliters) | 29.58 | 0.0338 | CCs (Milliliters) | 1 | 1 | |
| Liters | 0.0296 | 33.8067 | Liters | 0.001 | 1000 | |
| To use the inverse factor, multiply the number of units to convert by the inverse factor. For example, to determine how many Fluid Ounces there are in 37 CCs, multiply 37 times 0.0338 to get 1.25 Fluid Ounces. | ||||||