Wants to know how to check the quality of coco peat?
Coco peat is an alternative to peat moss and is a growing medium gaining popularity with a decline in demand for peat moss. We are always keen to spread awareness for consumers on how they can make the best-informed decision before their next purchase.
Coco Peat has become a common product for different hydroponics, agriculture, and growing needs. These days, a number of suppliers and different brands of coco coir are available in the market as its demand is constantly increasing in popularity.
Every available brand in the market states that they sell the best quality growing medium and offer a premium brand. This is where it makes it tricky for consumers to determine which is the best value for money and who is providing the best quality product suiting their needs.
Below are a few methods mentioned which can help you determine the best quality and are industry’s best method for testing.
pH value testing
This method is similar to the EC method testing, which we will be discussing below. 1:5 dry is used when testing the pH value. RO water, which is neutral with 7.0, is commonly used as the solution for coco peat. You are required to pour an accurate amount of water equal to 5 times to soak. Then, it is stirred and left alone for the next 15 minutes. Then, using a pH meter, the solution is determined. The value which is extracted is the exact pH value of the coco peat.
EC Testing
This testing is performed by extracting water from the material. It is used to check the electrical conductivity of coco peat. There are 2 common methods which are used mainly which is wet and dry.
- The wet method: this is the stringent quality control and is also known as the 1:1:5 method. By using a sample of coco peat demineralized in water to fully expand. You are required to take a precise 3 times the water equal to the weight of the coco peat to be mixed. For example, 100 ml of the mixture is diluted with 150 ml of demineralized water. Once the mixture is properly stirred, it is left to soak. Then, the mixture goes through an EC evaluation test with the help of the meter.
- The Dry method: it is carried out after defibering the coco coir and is known as the 1:5 method. A part of Coco peat is broken into five parts with mineralized water, ie (100 to 500ml). when stirred and soaked, you measure the EC value. This dry method is volumetric and used worldwide. Do keep in mind that this dry method can be affected by the presence of Sand in the solution. The formula EC of coco peat is measured as ECs-ECw (ms/cm).
Moisture Test
This is one of the most essential tests for cocopeat, which is used as a growth amendment. Whether the coco peat is packed in loose bags or is compressed, coco peat retains around 15-25% of the moisture. The moisture level also differs depending on the method by which it is dried.
If it is dried from direct sunlight, then the moisture levels should not be less than 60%, and if the hot oven is dying, the level should now be below 75%. The hot oven drying coco peat is checked with formula (100-W) %. The matter ratio Is 1:5:7 parts of coco peat.
Expansion Volume
Another test is the expansion volume test. Take a slice from the coco peat block, which is around 1 kg mix and crush it with clean water. The ratio should be 1:3 parts of water. When it’s completely soaked and left to dry, measure the fully expanded coco peat without any strains, The number of liters of coco peat as gain expansion volume is the sample. To get an idea 1Kg of coco peat should be expanded to weight up to 9 liters.
Sand Testing
The last and final test is the Sand test. 1kg of coco peat should be soaked for 15 minutes. Coco peat will float, and sandy and husky particles will settle below. The sand content is expressed as WS x 1000 x %. The sand is dried and weighed to check the impurities.
We have rounded five common tests to check the quality of coco peat. While using these industry methods of testing, you can get an idea of the coco peat you are using for your needs.