1.5 to 2 cups, depending on the rice
To cook for 20 people, you will need about 4 cups of uncooked rice.
To cook for 5 people, you will need about 2 cups of uncooked rice.
For optimal results, pressure cook bone broth for 2-3 hours.
That depends on how long you cook them for. If you cook macaroni to a standard al dente, then you will need 8 cups of dried macaroni noodles; if you over cook them they will swell to 3 or 4 times the dried size, therefore you would only need about 4 cups.
The nutrient broth is typically used to grow and culture bacteria, not for consumption. Since it is not intended to be ingested and is only used as a growth medium, it does not need to be cooked. Heating the broth could destroy the nutrients or alter its composition, which would impact its effectiveness in supporting bacterial growth.
You need a large pot that has heated walls to cook the rice evenly. Otherwise, you will have unevenly cooked rice.
In the usual cooking method, you would add twice as much water as rice. So 1000 ml, or a liter.
you need 7 cups
It is really going to depend on the recipe and how thick you want your broth to be. One recipe for a chicken and sausage gumbo I've seen by Paula Dean, you would need 12.5 cups of oil (after browning the chicken) an additional 6.25 cups of butter and 25 cups flour to make the roux for gumbo to serve 50 people.
Why add salt at all? There is no reason to add salt to rice.
16 cups a day for 30 days would be 480 cups.
You will need about 1.5 to 2 ounces of coffee grounds to make 4 cups of coffee.