LEARN ABOUT COIR
Plain answers on coconut coir and charcoal, written by the people who make it. No sales talk. If a question here is one your own customers ask you, send them this page.
Start here
Coir is a simple material that gets described badly. Most confusion comes from three things: an EC number quoted without saying how it was measured, the words coir and peat used as if they were the same thing, and a certificate of analysis treated as if it were a border clearance. These pages clear that up.
Every article is written from what we actually do in the factory in Blitar, not from a textbook. Where a number is a market convention rather than a fixed rule, we say so.
Growing media
| Article | What it answers |
|---|---|
| EC and testing methods | Why an EC number means nothing without the water ratio, and why we test at 1:1.5 |
| Coir vs peat | What the two words actually mean, and the numbers that matter to a grower |
| Coir substrate by crop | Why 70/30 coir-perlite is the default for high-value crops |
Charcoal
| Article | What it answers |
|---|---|
| Charcoal briquette grades | Ash, moisture and burn time, and what separates a premium cube from a cheap one |
Compliance and paperwork
| Article | What it answers |
|---|---|
| How to read a coir COA | What a factory COA proves, and why Australia also wants Salmonella and E. coli testing |
Mulch and landscaping
| Article | What it answers |
|---|---|
| Coir mulch vs wood mulch | Where wood wins, where coir wins, and how they work together |
Ask us something
If you have a question these pages do not answer, send it. Genuine technical questions are the ones we like best, and a good one usually becomes the next article.
Send a question, or message us on WhatsApp for a same day response during Indonesian business hours.