Desiccant
Also called dry fly powder, fly desiccant, dry shake
A desiccant is a drying powder used to remove water and slime from a dry fly so it will float again.
- Group
- Tools & accessories
- Category
- Gear & tackle
- Level
- Intermediate
- Water
- Freshwater
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What Desiccant means
Think of desiccant as “dry fly powder.” It’s a water-absorbing dust that you apply to a fly after it’s gotten soaked, slimed, or chewed up. Most versions come in a small bottle with a brush or a shaker top.
Use it after catching a fish, after a bad cast, or anytime a dry starts riding low. Blot the fly first with a cloth or amadou if you carry one, then dust it and give it a few false casts to clear the excess. Desiccant is mainly for hair, hackle, and dubbed bodies; it can mat down CDC and other naturally buoyant feathers, so many anglers skip powder on those patterns.
Why it matters on the water
Dry flies stop getting eaten when they sit too low or look waterlogged. Being able to dry one quickly keeps the same pattern fishing the way it’s supposed to, instead of changing flies every few drifts.
It’s most noticeable during small-fly fishing—midges, Tricos, and tiny mayflies—where a fly that’s even slightly drowned disappears in surface glare and drags more easily. A quick dry-and-dust cycle keeps the fly visible and keeps the presentation cleaner.
Read next
- AdamsA classic mayfly imitation dry fly with a gray body and mixed brown-and-grizzly hackle. It’s a general-purpose “searching” pattern when you don’t know the exact hatch.
- FloatantA floatant is a treatment put on a dry fly or leader to keep it riding higher and shedding water. It comes as a gel, liquid, spray, or powder.
- ParachuteA parachute is a dry-fly style with the hackle wrapped horizontally around a post, so the fly rides low and stays visible.
- TricoTrico is a tiny mayfly (genus Tricorythodes) best known for dense summer morning hatches and spinner falls. On many trout rivers it brings selective fish and fine-tippet dry-fly fishing.