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Harvest & Processing

Desiccant Pack

Silica gel sachets that keep stored mushrooms cracker-dry.

Illustration of a desiccant pack
Typical specifications
MaterialSilica gel, food safe
Absorption capacityUp to 40% of own weight
IndicatorOrange to green, or blue to pink
DoseOne 10 g pack per litre of jar
RechargeOven dry at 120 °C
Replace whenIndicator colour shifts
Harvest & ProcessingSmall to large batches

Overview

A desiccant pack absorbs the residual moisture that slowly seeps into a sealed jar. Even properly dried mushrooms can reabsorb humidity and mould if they are stored without one. Colour-indicating silica gel turns pink when saturated, giving you a clear signal to recharge or replace the sachet.

Primary stage: Processing

Where it fits in the grow

Placed in storage jars after drying to maintain low moisture.

Safety & handling

Use food-safe silica gel in sealed sachets only, and keep loose beads away from children and pets — the beads are a choking and ingestion hazard.

Practical advice

Weigh a jar over the first two weeks of storage. A slow gain means moisture is still escaping from the mushrooms and the dry was not complete.

Educational only. Mycelium Works does not sell this or any other product, and we receive no payment for listing it. Specifications vary by manufacturer — always follow the maker’s instructions and local regulations.
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