The Correct Boveda Pack Humidity for Cannabis

Written by Brandon Topp

December 11th, 2025

Use a 62% Boveda pack for most cannabis flower stored in airtight jars at 60-70°F. Choose a 58% Boveda pack if you prefer a drier texture or your storage runs warm. 

Both options maintain quality by adding or absorbing moisture to a precise target, but temperature shifts, which is right.

Keep your Mood Flower fresh with this helpful guide. 

Table of Contents

• Which Boveda RH Level for Cannabis Storage

• How Many Boveda Packs You Actually Need

• Setting Up Your Container for Accurate Humidity

• Four Rules That Prevent Wasted Packs

• Temperature Changes Everything About RH

• Storing Pre-Rolls and Flower the Right Way

• Pre-Roll Placement That Prevents Moisture Pooling

• What Boveda Packs Cannot Fix

• When to Replace Packs and Track Freshness

• Your Complete Cannabis Storage Setup

Which Boveda RH Level for Cannabis Storage

We recommend starting with 62% RH for most cannabis in airtight containers at normal room temperatures between 60-70°F. This level delivers the springy texture and preserved terpenes most users want.

Choose 58% RH if you prefer a drier feel, your storage space runs above 70°F, or you notice pre-rolls feeling too soft at 62%. Both levels preserve quality when used with proper airtight jars.

The Temperature Rule That Changes Everything

Reduce target humidity by 2-3% for every 5°F above 70°F. If your room runs at 75°F, choose 58% rather than 62%.

This adjustment explains why your pre-rolls feel perfect in winter but soggy in summer with the same pack. Relative humidity is relative to temperature, and warm air holds more moisture at the same RH percentage.

Why Not Cigar Humidity Levels

Cannabis requires 58-62% RH, not the 69-72% levels designed for cigars. Higher humidity creates conditions that threaten mold growth and create musty flavors in flower.

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How Many Boveda Packs You Actually Need

Size packs to container volume, not cannabis weight. The packs control the air inside the container, not the flower itself.

Use one 8g pack for containers up to 25g capacity. Larger jars need appropriately sized packs based on total volume.

Using Multiple Packs

Adding more packs extends lifespan and speeds stabilization. Two packs in one container won't hurt because they only regulate to their target percentage.

Overpacking isn't a problem. Extra packs simply share the workload and last longer before needing replacement.

Replacement Timing

Replace packs every 2-6 months when they feel hard or crusty instead of pliable. Lifespan depends on seal quality and how often you open the container.

Packs last longer in containers that stay sealed most of the time. Frequent opening introduces fresh air that makes packs work harder.

Setting Up Your Container for Accurate Humidity

Airtight beats pretty every time. Glass mason jars, acrylic containers, and metal tins with tight seals work well.

Boveda packs maintain accuracy in sealed containers, but can run several points low in leaky ones. Wooden boxes and thin poly bags let moisture escape.

The 24-Hour Equilibrium Check

Add your pack and a basic hygrometer to the container. Seal everything for 24 hours.

Check the reading after equilibration. If RH matches your target, you're set. If it reads high, the flower was sealed too wet. If it reads low, the container is leaking, or the pack is undersized.

Moving From Shipping Packaging

Heat-sealed shipping pouches are transit packaging, not long-term storage. Move flower to an airtight glass within 10 minutes of opening.

The moment you open our packaging, storage responsibility transfers to you. Quick transfer to proper containers maintains the quality we built during shipping.

Four Rules That Prevent Wasted Packs

Never mix different RH levels in one container. They fight each other, with one absorbing while the other releases.

Don't combine Boveda with other humidifiers. Different systems compete for control and wear out faster.

Safe Direct Contact

Packs can safely touch cannabis directly. The membrane only allows water vapor through, not salts or other contents.

You don't need to worry about packs touching your flower or pre-rolls. Direct contact won't harm the product.

Don't Recharge Packs

Recharging compromises the membrane and the precise regulation ability. Replace depleted packs rather than attempting to restore them.

Temperature Changes Everything About RH

Your setup might be dialed in, but temperature determines whether 62% or 58% is actually right for your space. Relative humidity is relative to temperature.

Warm air holds more moisture at the same RH percentage. When your storage space hits 76°F, that 62% Boveda pack suddenly oversaturates your flower.

Location Guidance

Store in cool, dark, stable spots like interior closet shelves. An interior closet away from exterior walls provides stable temperatures and complete darkness.

Avoid kitchens and bathrooms where humidity spikes from cooking or showering create constant fluctuations. Temperature swings put more stress on your flower than any single factor.

Adjusting for Your Climate

If your storage space runs at 75°F, drop to a 58% pack. At 80°F (avoid if possible), you'd want 55% or lower.

The moisture that felt perfect at 68°F now threatens mold growth at higher temperatures. This temperature-dependent adjustment prevents seasonal storage failures.

Storing Pre-Rolls and Flower the Right Way

For pre-rolls, use one 62% pack per 8-10 joints. Learn how to properly smoke pre-rolls once you've stored them correctly.

This placement prevents moisture pooling at one end while the other end stays dry. Even distribution means every pre-roll benefits equally.

The Two-Jar System for Flower

Keep three-quarters of your flower in a sealed bulk jar that you rarely open. Transfer one-quarter to a working jar for daily use.

Opening your storage five times monthly versus twenty times reduces oxygen exposure by 75%. That's a bigger preservation gain than any premium container could provide.

Each jar in this system needs its own humidity pack sized to that container's volume. The bulk jar maintains pristine conditions while your working jar handles the frequent access.

Why This Beats Expensive Containers

Fewer oxygen cycles preserve terpenes better than fancy UV glass or nitrogen-flushed systems. The two-jar approach is simple to implement and costs almost nothing.

Pre-Roll Placement That Prevents Moisture Pooling

Place humidity packs between your pre-rolls in the container. Top placement creates moisture pooling, while bottom placement prevents circulation.

Middle placement between joints ensures even moisture distribution throughout the container. This prevents some pre-rolls from being too wet while others stay too dry.

What Boveda Packs Cannot Fix

Packs stabilize good storage but can't rescue flower sealed wet, already moldy, or severely overdried. Learn more about proper cannabis storage to prevent these issues from occurring.

If the flower felt spongy or smelled musty when first sealed, the problem existed before adding the pack. Learn how to identify moldy weed to avoid health risks.

Addressing the Terpene Debate

At 58-62% RH, properly cured flower reaches equilibrium without gaining or losing moisture. Perceived terpene loss usually means starting with overdried flower.

Some users claiming "terpene stealing" are actually using cigar-level 69-72% RH packs, which are too high for cannabis. Stick to cannabis-specific 58-62% levels.

Setting Realistic Expectations

Humidity packs are insurance against gradual changes, not a rescue system for storage mistakes. Start with properly dried cannabis in an airtight container.

When to Replace Packs and Track Freshness

Most packs last 2-4 months, depending on how often you open the jar. Learn more about how long pre-rolls stay fresh with proper humidity control.

The tactile check is simple: packs feel slightly pliable when fresh. When they turn hard and crusty, they need replacement.

The Tracking Trick

Write the installation date on jars with a marker. This removes guesswork about when to swap packs.

Knowing exactly when you added the pack helps you establish replacement patterns based on your usage. Heavy users might replace every 2 months, while occasional users stretch to 6 months.

Your Complete Cannabis Storage Setup

The complete system includes an airtight jar sized to minimize headspace, the right RH pack sized to container volume, and storage in a cool dark location below 70°F. 

This protects THCa flower and other cannabis products effectively.

The decision framework is straightforward: start with 62% for most situations. Choose 58% for warm rooms above 70°F or if you prefer drier texture. 

While this guide focuses on flower and pre-rolls, proper storage principles also apply to concentrates and other cannabis products.

Important Disclaimer

This is storage guidance only, not wellness advice. We provide practical information to help you maintain product quality. If you prefer products that require minimal storage considerations, explore our THC gummies collection.

For questions about effects or personal use, consult appropriate resources. We focus on preservation science, not health recommendations.