Perfect drying – based on the latest scientific findings

Drying is the last and most important step in the entire cultivation process. This is where it is decided whether a good harvest will result in an exceptional end product - or whether terpenes, active ingredients and quality will be lost. Precisely this critical section was underestimated for many years. Before Dryferm, the topic of drying was characterized by half-knowledge, forum myths and so-called “broscience” rules.

It was only through Dryferm and the subsequent scientific investigations that the topic was systematically analyzed. In cooperation with Sanlight, one of the leading manufacturers of professional grow technology, extensive series of measurements were carried out – with surprising results.

Why the classic 60/60 rule is wrong

For decades, the so-called 60/60 method from the USA was considered the standard:

60°F (approx. 16°C) and 60% relative humidity.

However, Sanlight's new investigations show that precisely this 60% humidity is problematic. At this value, fermentation processes occur that break down terpenes, cannabinoids and other valuable plant substances. The result: poorer aromas, lower potency and a significantly higher risk of quality loss.

The decisive measurement value here is the so-called aw value (water activity). It indicates how much “free” water is present in the plant material. If this value is above 0.8, mold, bacteria and enzymatic processes can spread unhindered. The aim is therefore to bring the aw value below this threshold as early as possible.

Therefore:
Dry quickly at the beginning to rapidly lower the water activity – then stabilize in a controlled and gentle manner.

What professionals already knew – now scientifically proven

What experienced growers and producers have long observed has now been clearly demonstrated for the first time:

A slightly more aggressive start to drying protects terpenes and ingredients better than an overly humid environment.

This is precisely where Dryferm comes in. The special film technology regulates the microclimate directly at the flower. Terpenes cannot escape uncontrollably, while at the same time excess moisture is specifically removed. The result is even, safe and reproducible drying – regardless of room climate and fluctuations.

The optimal drying protocol

Based on the Sanlight measurements and the aw-value analysis, the following ideal process results:

Temperature: 19–23 °C
This higher temperature is not a mistake – it is necessary to reach the correct VPD range (Vapor Pressure Deficit). Only in this way can moisture be efficiently removed from the plant material without damaging the ingredients.

Humidity over time:

• Day 1–3: 45 %

• Day 4–7: 50 %

• Day 7–12: 55 %

The fast, dry start quickly brings the aw value below the critical threshold. After that, the humidity is slowly increased to gently complete the drying without losing terpenes or structure.

Why Dryferm makes the decisive difference

Many are surprised by this seemingly aggressive drying course – but that is precisely the advantage. The Dryferm bag protects the flowers during this phase from the escape of volatile aromatic substances. Terpenes, esters and other sensitive compounds remain where they belong: in the flower.

At the same time, the controlled microclimate in the bag prevents mold formation, over-fermentation and uneven drying. The result is firmer buds, more intense aromas, higher stability of active ingredients and a visibly better end product.

Conclusion

With the new scientific findings, it is clear:

The old 60/60 rule is a thing of the past. Modern drying is based on water activity, VPD and targeted moisture control – and that is precisely what Dryferm was developed for.

Anyone who wants to dry at the highest level today can no longer ignore this system. Because perfect flowers are not created during cultivation – they are created during proper drying.