Temperature and Humidity Red Lines for Agarwood Storage and Meiyu Season Countermeasures

The core temperature and humidity red lines for agarwood storage are 18-25°C and 50%-65% relative humidity. During the Meiyu season, sealing, dehumidification, and regular inspection are essential to prevent mold and cracking while preserving aroma.

1. Why 18-25°C and 50%-65% RH Are the Red Lines

Agarwood is a composite of resin and wood fibers, and its aromatic compounds (sesquiterpenes, chromones, etc.) are highly sensitive to temperature and humidity. Excessive heat accelerates the evaporation of volatile oils, weakening the scent; high humidity promotes mold growth and causes wood fibers to swell; low humidity may lead to cracking. Based on long-term practice and research data in the Agarwood Encyclopedia, the industry-recognized red lines are 18-25°C and 50%-65% RH. Within this range, agarwood maintains stable aroma and avoids physical damage.

2. Three Major Threats During Meiyu Season and Countermeasures

The Meiyu season (typically May-July) poses the greatest challenge due to high humidity. Threat 1: Mold growth. When humidity exceeds 70% for extended periods, white or green mold spots may appear, especially on new or low-resin agarwood. Countermeasure: Use an electronic dry cabinet to maintain humidity around 55%, or place silica gel desiccant in sealed containers (replace monthly). Threat 2: Aroma loss. High humidity may cause water-soluble aromatic substances to migrate and be lost. Countermeasure: Seal agarwood in aluminum foil bags, expel air, and store in a cool place. Threat 3: Wood expansion and deformation. Rapid humidity changes can cause cracking or warping, especially in carvings and beads. Countermeasure: Avoid frequent opening of containers and maintain a stable environment. For more identification and storage details, refer to the Identification Pillar Page.

3. Practical Tips and Taboos for Daily Storage

Beyond temperature and humidity control, note: 1) Keep away from light—UV accelerates oil oxidation; 2) Avoid odor sources—agarwood easily absorbs surrounding smells, so never store with perfume or camphor; 3) Inspect regularly—check monthly for mold or pests; 4) For high-value Kyara, store separately in sealed containers within a constant temperature and humidity cabinet. Taboos include: placing in refrigerator (condensation from temperature differences), long-term plastic bag storage (poor ventilation can cause sour odor), and sun-drying to remove moisture (causes cracking). Traditional Chinese incense culture emphasizes that “incense fears dampness, dryness, and odors,” which aligns with modern scientific conclusions. For more incense identification knowledge, see Chinese Incense Culture · Agarwood Identification.

4. Conclusion: Stay Within the Red Lines for Longevity

The essence of agarwood storage is maintaining a stable micro-environment. Remember the red lines (18-25°C, 50%-65% RH), and actively dehumidify, seal, and protect from light during the Meiyu season to effectively extend the life and aromatic quality of agarwood. Regular inspection and timely adjustment will help every piece of agarwood safely pass through humid seasons.

(This is industry observation and popular-science summary, not investment advice. Buy agarwood through legal channels with traceable, testable sources.)