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Trichome Inspection at Harvest

Inspect trichomes before you cut, then handle flowers so resin heads stay on the bud. Wet glands bend; dry glands snap off.

harvest trichomes
Trichome Inspection at Harvest — Marijuana Grower's Handbook, page 663
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Inspect before the cut

Harvest trichome check

Look at more than the tallest cola. Inner and lower sites often lag the tops

Quality gap

Unripe flowers are noticeably weaker than ripe ones on the same plant, so inspection beats the calendar

Canopy bias

Sites in full light finish first. Recheck shaded flowers after the first pick

Ten-day window

Hidden buds often need about ten more days after the first ripe tops come off

What the glands do

Resin heads

Trichomes hold the cannabinoids and aromatic oils that define the finished flower

Wet and pliable

On a fresh plant the heads bend instead of breaking, so they stay attached during a careful trim

Dry and brittle

Once the flower is dry, rough handling knocks glands off into the air and onto the table

Protective leaves

Small sugar leaves left on during storage can shield trichomes until you are ready to use the bud

Catch what falls

Bright work light

Overhead plus a desk lamp lets you see petioles, leaf edges, and loose resin

Smooth surface

A clean table makes fallen glands easy to gather after manicuring

Fine screen

Silk, nylon, or steel mesh around 100 strands per inch lets resin drop through while leaf stays on top

Kief value

The powder is mostly gland heads, so it is far more concentrated than the trim it came from

Gentle handling

Fresh trim first

Manicure soon after the cut while tissue is turgid and glands still flex

Standing cleanup

A light fan-leaf strip a few days before harvest can reduce later damage, but keep it brief

Less touching

Every unpack and shuffle drops more resin. Move flowers as little as you can

Collection habit

Work over a screen tray so inspection and harvest trichomes are not lost on the floor