Good shelling, sorting and drying of maize

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Source:

https://www.accessagriculture.org/good-shelling-sorting-and-drying-maize

Duration: 

00:14:54

Year of Production: 

2018

Source/Author: 

AFAAS
“Pre-dry your maize before shelling it. Winnow the maize on a tarpaulin and sort it. Dry your maize under a hot sun on a tarpaulin, and turn it over regularly. Before storing the grain, measure the moisture level by checking the sound produced by the grain. Let the grain cool before storing.“

After harvesting the maize, you have to shell, sort and dry the maize properly until you can sort it.

When maize isn‘t stored the right way, it becomes unusable faster. If stored maize is moist, the grain sprouts and moulds can develop easily. This leads to more pests attacking the harvest.

Shell, sort and dry

After removing the husk, lay the maize ears on a tarpaulin or clean surface for pre drying it. Don‘t leave it there for too long, because otherwise the maize will break in further processes.

Continue with separating the grains from the crob. If you‘re doing this step manual it will take time, but less grains are going to break.

Now you can lay the grains on a tarpaulin to clean them from dirt and remove the broken grains. Always make sure that the tarpaulin is clean. Let it heat from the sun and keep animals away.

The drying process takes about 4 hours and should be done by clear sunny weather between 11 am and 3 pm.

It is important to turn the maize regularly to see if the grains dry evenly. To check the state you can always grab some grains and shake them in your hands. Then you hear wether they sound dry or not. Another way is to bite on a grain to proof if it is dry. If the maize is dry, you can let the grains cool down at the fresh air and afterwards start storing it.

Sequence from Sequence to Description
00:0001:28Shelling, winnowing, sorting, drying, storing and managing stored maize is important for good qualitative maize.
01:2901:50In this video the focus is on shelling, winnowing, sorting and drying.
01:512:22Maize should be pre dried, which prevents the maize from rotting during storage.
02:2302:36The maize should not be dried for two long because then it can break during shelling.
02:3702:56Separating the grain from the crop is called shelling.
02:5703:23Shelling with a “maize sheller“ machine is faster than by hand but shelling by hand causes less breaking.
03:2404:52To shell by hand you can use your thumb to push the grain from the crop, rub two corns against each other or work with tools.
04:5305:39After shelling, winnow the maize and sort it.
05:4006:23To winnow the maize you use two basins and throw the maize from one basin to another for several times.
06:2406:42Sort out any impurities and damaged grain that hasn‘t been removed yet.
06:4307:38Because moisture is the worst enemy of maize, dry the grains again.
07:3908:10You can use sunlight to dry the maize.
08:1108:40You should have a drying area or tarpaulin and it is important to clean the drying area, then wait until it is well heated and afterwards spread the maize.
08:4109:06If you don‘t have a suitable drying area, use the terrace at your house or buy a tarpaulin.
09:0709:38During drying, the maize should be turned regularly to make sure that it dries evenly.
09:3910:02Drying should be between 11 am and 3 pm and takes about 5 hours.
10:0311:06Make sure the grain layer isn‘t higher than half a finger.
11:0711:22The recommended moisture level of stored maize is 12 percent.
11:2311:55The moisture level can be checked while biting on grains or shaking grains to hear if they sound dry or make a cracking sound.
11:5612:33Before storing the maize let it cool in the air for a short period of time.
12:3412:45Keep animals away.
12:5514:54Summary

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