Growing your own grain in the garden, like wheat
or rice,
is a practice that’s gaining in popularity, and while it’s a little intensive,
it can also be very rewarding. There’s a certain amount of mystery surrounding
the harvest process, however, and some vocabulary that doesn’t often show up in
other types of gardening. A couple obvious examples are chaff and winnowing.
Keep reading to learn the meanings of these words, and what they have to do
with harvesting grain and other crops.
What is Chaff?
Chaff is the name given to the husk surrounding a seed. Sometimes, it can apply to the stem attached to the seed as well. In basic terms, chaff is all the stuff you don’t want, and that needs to be separated from the seed or grain after harvest.
What is Winnowing?
Winnowing is the name given to that process of separating
the grain from the chaff. This is the step that comes after threshing (the
process of loosening the chaff). Often, winnowing uses airflow – since the
grain is much heavier than the chaff, a light breeze is usually enough to blow
the chaff away, while leaving the grain in place. (Winnowing can actually refer
to the separating of any seed from its husk or outer shell, not just grain).
How to Winnow
There are a couple different methods for winnowing chaff and
grain on a small scale, but they follow the same basic principle of allowing
the lighter debris to blow away from the heavier seeds.
One simple solution involves two buckets and a fan. Place an
empty bucket on the ground, pointing a fan set to low just above it. Lift the
other bucket, filled with your threshed grain, and slowly pour it into the empty
bucket. The fans should blow through the grain as it falls, carrying away the
chaff. (It’s best to do this outside). You may have to repeat this process a
few times to get rid of all the chaff.
If you have a very small amount of grain, you can winnow
with nothing more than a bowl or winnowing basket. Just fill the bottom of the
bowl or basket with threshed grain and shake it. As you shake, tilt the bowl/basket
to its side and blow gently on it – this should cause the chaff to fall over
the edge while the grain stays in the bottom.
Growing your own grain in the garden, like wheat
or rice,
is a practice that’s gaining in popularity, and while it’s a little intensive,
it can also be very rewarding. There’s a certain amount of mystery surrounding
the harvest process, however, and some vocabulary that doesn’t often show up in
other types of gardening. A couple obvious examples are chaff and winnowing.
Keep reading to learn the meanings of these words, and what they have to do
with harvesting grain and other crops.
What is Chaff?
Chaff is the name given to the husk surrounding a seed. Sometimes, it can apply to the stem attached to the seed as well. In basic terms, chaff is all the stuff you don’t want, and that needs to be separated from the seed or grain after harvest.
What is Winnowing?
Winnowing is the name given to that process of separating
the grain from the chaff. This is the step that comes after threshing (the
process of loosening the chaff). Often, winnowing uses airflow – since the
grain is much heavier than the chaff, a light breeze is usually enough to blow
the chaff away, while leaving the grain in place. (Winnowing can actually refer
to the separating of any seed from its husk or outer shell, not just grain).
How to Winnow
There are a couple different methods for winnowing chaff and
grain on a small scale, but they follow the same basic principle of allowing
the lighter debris to blow away from the heavier seeds.
One simple solution involves two buckets and a fan. Place an
empty bucket on the ground, pointing a fan set to low just above it. Lift the
other bucket, filled with your threshed grain, and slowly pour it into the empty
bucket. The fans should blow through the grain as it falls, carrying away the
chaff. (It’s best to do this outside). You may have to repeat this process a
few times to get rid of all the chaff.
If you have a very small amount of grain, you can winnow
with nothing more than a bowl or winnowing basket. Just fill the bottom of the
bowl or basket with threshed grain and shake it. As you shake, tilt the bowl/basket
to its side and blow gently on it – this should cause the chaff to fall over
the edge while the grain stays in the bottom.