GrowLED ACADEMY

The GrowLED learning spaceIndoor growing & hydroponics

STEP 13 OF 14 · PROFESSIONAL COURSE

Drying and curing.

What research on CBD hemp says about drying, the trade-offs of decarboxylation and microbial load as a compliance issue.

◷ 6 min read6 sectionsValidation quiz
Portrait directed by Joseph, founder of GrowLEDGROWLED EXPERTISE
With Joseph

Indoor growing & hydroponics since 2007.
Working in the industry since 2009.

GROWLED ACADEMY
STEP 13.
An overview to discover this step.

The underlined words give access to the glossary.

This course is reserved for registered agricultural operators.

STEP 13 · ACADEMY PROOVERVIEW OF THE COURSE

Drying is the stage where you lose the most value in the least time. Three months of careful growing can degrade in a week, and the dominant doctrine on the subject has just been challenged by work carried out on CBD-rich hemp specifically.

What drying has to achieve

A fresh inflorescence contains roughly three quarters water. Drying has to bring that content down to a level that allows storage, without destroying what makes the product valuable. These two objectives pull in opposite directions, and the whole challenge lies in balancing them.

Two inflorescences with a vertical gauge next to each. On the left, the inflorescence is green and plump and its gauge is three quarters full. On the right it is shrunken and dull and its gauge is only one tenth full. Between the two, a wide ribbon of droplets escapes, accompanied by a thin ribbon of stars. Open the illustration full size
What to look at: the thin ribbon next to the wide one. Water leaves in bulk, and that's the point; but volatile compounds leave with it, and that's the loss. The two objectives pull in opposite directions.

Insufficient drying leaves a product that will degrade in storage, with a microbiological risk. Drying that is too aggressive sends volatile compounds you spent weeks producing out along with the water.

A badly dried batch cannot be salvaged. Unlike a deficiency or a climate problem, there is no correcting it after the fact.

TO CONTINUE READING

To read more, create your free account

Your account, then your declaration of operator honour, open the 13 complete steps, your progress, quizzes and your badges.

Create my free account

GROWLED ACADEMY PRO

14 steps to move forward.

Illustration of the course