Weed can last 6-12 months in a mason jar.

Properly stored cannabis flower in a mason jar can maintain potency and flavor for 6 to 12 months, and sometimes longer. Key factors include airtight sealing, cool temperatures, darkness, and humidity control. Using an airtight jar minimizes oxygen exposure, slowing degradation.

Factors Affecting Cannabis Storage

• Air Exposure: Oxygen degrades cannabinoids.
• Light: UV light breaks down THC.
• Heat: Accelerates degradation of cannabinoids and terpenes.
• Humidity: Too much causes mold; too little causes dryness. Ideal range is 59-63%.

Best Practices for Mason Jar Storage

1. Cure Properly: Ensure cannabis is fully cured before jarring.
2. Airtight Seal: Use a new lid with a rubber seal.
3. Dark Storage: Keep jars in a dark place, like a cabinet.
4. Temperature Control: Store in a cool, consistent temperature (around 60-70°F / 15-21°C).
5. Burp Regularly: Open the jar briefly once or twice a day for the first week to release excess moisture.

Storage Method Comparison

Signs of Degradation

• Color Change: From vibrant green to brown or yellow.
• Smell: Loss of aroma or a hay-like smell.
• Texture: Becomes dry and brittle.
• Potency: Reduced effects.