How do you measure bulk density of corn grains?

Answer 1

Very straigtforward. Take a random sample of your rain - a few grains from each sack should do.

Next, weigh an empty jar or container with the most accurate scale you have. Record this weight and subtract it from other measurements below, or just hit the "TARE" button if it is a digital scale.

fill the container with water right to the brim. Weigh again. If it weighs 434 grams (after TARE), then the volume of the jar is 434 mL (1 mL water = 1 g)

Empty the jar and dry with towel.

Fill the jar right to the brim with the grain you have. Weigh again. If it weighs 217 grams after TARE), the bulk density is the mass dividing by the volume. In this case, it would be 217 g/ 434 mL = 0.5 g/mL.

Voila!

Answer 2

Easiest and quickest way: purchase a moisture-testing meter and follow the instructions.

Less expensive way, but takes longer: weigh a sample as accurately as possible, then heat at a temperature high enough to drive out the moisture, but not so high as to start to oxidize or burn the corn. Weigh the sample again, then put the numbers into the formula below:

Grain moisture content (in % pts.) = ((Beginning weight of sample minus ending weight) divided by beginning weight) times 100

Answer 3

Moisture in grain and grain foods is measured by weight, or by weighing before and after it is dried. Two grams of the grain sample is accurately weighed into a dry dish with a cover. The sample is dried in a forced draft oven or a vacuum oven. The sample is weighted again, and the change in weights represents the amount of moisture that was lost.

Moisture can also be measured by using an NIR instrument, which is much quicker, but not as dependable.