An organic cotton does not imply high quality.
Cotton fabrics are natural fabrics of plant origin.
They are born from the cotton plant, when it matures it is collected, its fibers become thread and from it the cotton fabric is produced.
How to classify cotton? Well, it depends on what we interpret as cotton. As we are very methodical we go in parts, as Jack said.
Classification according to the origin of the plant :
There are about 40 species of cotton, although only 4 are used commercially. Ordered from lowest to highest quality:
- Gossypium arboreum. Originally from India and Pakistan.
- Gossypium herbaceum. native to africa
- Gossypium hirsutum. Native to America.
- Gossypium barbadense. Originally from South America.
The hirsutum plant is the most widespread species worldwide. Although its origin is American, it is a species cultivated in Turkey as well as the Barbadense species.
Classification according to fiber length:
We have said that prior to spinning the cotton, the fibers are collected. These are found around the seed of the plant. They are classified by their length. We have previously said that the plants were ordered from lowest to highest quality, note that they will be directly associated with the length of the fiber they offer, and this is one of the parameters that determine the quality of cotton.
The longer the fiber, the better the cotton quality.
In the following table cottons are classified based on the length of their fiber, it is seen in the third column how each length coincides with a species. And those of higher quality give rise to commercial names and therefore a third classification.
cotton type |
fiber length |
Species |
Common name |
short fiber |
< 20mm |
Gossypium herbaceum Gossypium arboreum |
- |
medium fiber |
20 - 34mm |
Gossypium hirsutum |
Upland Cotton |
Long or extra long fiber |
34 - 42mm |
Gossypium barbadense |
Pima cotton or Tangüis, Egyptian cotton |
Classification according to the common name:
Where does organic cotton fit into all these classifications?
Organic cotton enters all the classifications, why? Because they are the same plants, with the same fibers, only grown without chemical agents. This makes it a less polluting and healthier cotton.
That is… you may be buying low-quality organic cotton if it has a short fiber.
Therefore, organic cotton does not imply high quality.
Of course, it will not have been cultivated with chemical agents. To see the impact of growing organic cotton vs cotton or recycled polyester, we recommend this post.
How can we know if the cotton we are buying is not of good quality?
You cannot know the length of the fiber without going through technical tests to verify it.
Apart from this classification, we must not forget that there are two more steps, the thread and the fabric. Here you have to consider the number of threads per inch, and the weaving process. We will tell you about the different types of cotton that exist in the next post.