Usage Guide for Bodee Labs Curing Bags with StePac Xtend® Technology

Product Overview and Intended Use

Bodee Labs Curing Bags utilize StePac Xtend® technology, an advanced modified atmosphere packaging (MAP) solution designed to regulate oxygen and moisture levels, ensuring optimal conditions for the long-term curing and storage of plant material (e.g., harvested flower).

Optimal Water Activity (aW) for Curing Cannabis

The single most important factor in achieving optimal bag performance and resulting quality for your flowers is the amount of water present in the flower when you seal it in the bags, known as water activity (aW).

The optimal target window for sealing into Xtend bags is aW 0.60–0.65

Read the SOP below to learn more about aW and how to achieve this target in your flowers.

Storage and Handling Guidelines

Store unopened bags according to the following specifications to maintain material integrity and performance:

Requirement Specification Notes
Temperature Room Temperature (60 - 77 °F / 15 - 25 °C) Avoid extreme heat or cold.
Location Dry, Protected Keep out of direct sunlight and away from heat sources.
Humidity Maintain 30% - 60% Relative Humidity (RH) Storage in low humidity requires mandatory re-hydration before use (see below)

CRITICAL WARNING: Preparation and Re-Hydration Requirement

Issue: Bags stored in a low-humidity environment (below 30% RH) for extended periods will become dry.

Risk: Dry bags are prone to tearing or damage when being filled with material. Furthermore, dry material reduces the bags' intended curing performance.

Action: Bags must be re-hydrated prior to use to ensure material flexibility and optimal function.

Re-Hydration Procedure

Re-hydrate the bags by exposing them to a higher-humidity environment for the required duration:

Re-Hydration Environment Target RH Suggested Duration Notes
Standard Method 30% - 60% RH 8 hours or Overnight This is the general guideline for safe re-hydration.
Curing/Drying Room 55% - 60% RH 4 - 8 hours Ideal for rapid re-hydration.
Flower Room >40% RH Varies Avoid direct light exposure during this process.
Quick Method (Sealed Environment) 4 - 6 hours Place bags in a sealed tote or container containing, but not touching, a damp towel on a dish.

Cannabis Post-Harvest Curing SOP

Optimizing the Post-Harvest Process

In the world of professional cannabis cultivation, the difference between "good" flower and a "top-shelf" harvest often comes down to the final step of the process: The Cure. By moving away from traditional "burping" and toward managed microclimates, you maximize terpene preservation and eliminate the labor-intensive variables that lead to product degradation.

This Standard Operating Procedure (SOP) guides commercial cannabis cultivators and high-end craft growers through a repeatable, data-driven post-harvest curing process using two core tools:

  • Water Activity (aW) monitoring: the most reliable scientific predictor of mold risk and terpene volatility in cured cannabis flower
  • Bodee Labs Curing Bags powered by StePac Xtend film: a precisely engineered, polyamide-based semi-permeable packaging that creates a Modified Atmosphere (MA) and Modified Humidity (MH) microclimate around your flower

Following this SOP consistently will help you preserve cannabinoid potency, protect terpene profiles, reduce mold risk, eliminate unnecessary burping labor, and achieve batch-level consistency across every harvest.

Key Principle: Xtend isn't storage - it's a microclimate. You manage the inputs. The bag manages the equilibrium.

Why Water Activity, Not Just Relative Humidity, Is Your Most Important Metric

Most growers measure Relative Humidity (RH) in the room. That tells you about the air. Water Activity (aW) measures the available moisture in the flower itself: the actual number that determines whether mold can grow and whether your terpenes are stable.

  • aW below 0.65: mold inhibited, product is microbiologically safe
  • aW above 0.70: mold risk increases rapidly
  • aW 0.60–0.65: the optimal target window for sealing into Xtend bags

Converting RH to aW is simple: divide your sealed jar humidity reading by 100. A sealed jar reading 63% RH = 0.63 aW. The method for obtaining a sealed jar humidity reading is covered in step 4 below.

This single number is the foundation of the entire SOP. Everything else flows from it: drying time, airflow, and when to bag.

Step 1: Know Your Cultivar Before You Start

No two strains dry at the same rate. Environmental parameters are only a starting point. Understanding cultivar-specific behavior is the difference between a repeatable SOP and one that only works sometimes and delivers variable results.

What to track per cultivar:

  • Dense indicas dry slowly. Internal moisture lags behind surface feel. You may want to probe aW before assuming the flower is ready.
  • Loose sativas swing fast. They can transition from over-wet to over-dry within 24 hours during the final phase of drying.
  • Rack vs. hang drying and trimmed vs. untrimmed alter airflow dynamics and moisture release rate.
  • Soil vs. hydro grow methodologies affect initial moisture content and dry-down trajectory.

Pro-Tip: Build a cultivation log with entries for drying duration, texture milestones, aW readings at key intervals, and aroma notes for each strain you run. That log is your real SOP - this document gives you the framework to build it. After a few runs of all existing strains, your log should help you finalize a process for each strain. As new strains are introduced into your operation, re-run the tests and log results as needed.

Step 2: Set Up Your Drying Room Correctly

The cure begins the moment you harvest. Drying room conditions directly determine how much terpene, potency, and structure you carry into the bag.

Target Drying Room Parameters
Parameter Target Range
Temperature 64–70 °F (18–21 °C)
Relative Humidity 55–60%
Lighting Lights off (UV and heat accelerate terpene volatilization)
Airflow Gentle and indirect, no fan blowing directly on drying flower
Ventilation Passive or mechanical, 1–2x per day
Expected Duration 10–14 days average

Important: Drying time is not a fixed schedule and varies based on many factors. Use feel, aroma, and aW data, not a timer. A bud dried to day 14 in a poorly dialed room will be lower quality than a bud dried to day 11 in a properly controlled environment.

Do not rush the dry. High humidity, dense canopy airflow, or temperature spikes during this phase create uneven moisture gradients inside the bud - problems the bag cannot fix after the fact.

Step 3: Prepare Your Xtend Bags

Xtend bags are made from polyamide (nylon), a moisture-responsive film that requires proper storage and handling to perform as intended. A stiff, dehydrated bag will not manage vapor the way a pliable bag does, and is more likely to tear during loading.

If bags have become stiff (stored in low-humidity environments below 30% RH): re-hydrate them by exposing them to a higher-humidity environment for the required duration:

Re-Hydration Environment Target RH Suggested Duration Notes
Standard Method 30% - 60% RH 8 hours or Overnight This is the general guideline for safe re-hydration.
Curing/Drying Room 55% - 60% RH 4 - 8 hours Ideal for rapid re-hydration.
Flower Room >40% RH Varies Avoid direct light exposure during this process.
Quick Method (Sealed Environment) 4 - 6 hours Place bags in a sealed tote or container containing, but not touching, a damp towel on a dish.

Once the bag is pliable and flexible, it is ready for use. Do not attempt to fill a stiff bag- it will underperform and risk tearing at the seal point.

Step 4: Spot-Check Water Activity During the Dry

Do not guess when your flower is ready to bag. aW spot-checking during the drying phase gives you objective data and prevents the two most common curing errors: bagging too wet (mold risk) or too dry (no recovery possible).

aW Spot-Check Method:

  • Select representative samples from your drying space — at least one from each different airflow zones, canopy positions, or cultivar.
  • Place trimmed buds in a clean, sealed jar, filled to approximately 70% of jar volume (adjust for bud density).
  • Insert an RH/temperature sensor with the probe inside the jar.
  • Seal the jar and wait 4–12 hours for the internal atmosphere to equilibrate (can be left overnight).
  • Read the sensor. Divide the RH% reading by 100 to get aW.

Example: Jar reads 62% RH → aW = 0.62 → Ready for bagging!

Target aW at time of bagging:
Experience Level Target aW Range
Established growers with dialed-in process 0.60–0.65
New to aW monitoring / first runs 0.58–0.60 (err on the drier side)

Golden Rule: It is always easier to remove moisture than to add it back. If uncertain, dry slightly further. Overly-wet flower sealed in a bag creates a mold risk that no film technology can fully offset.

Step 5: Load and Seal Bodee Labs Curing Bags

When your flower has reached the target aW range, it is time to bag. Proper loading technique ensures the bag's film can perform its vapor-management function correctly.

Step-by-step bagging procedure:

  • Confirm aW is within target range (0.60–0.65, or 0.58–0.60 for cautious first runs). Do not skip this confirmation.
  • Confirm flower is trimmed to your final product spec before bagging. Do not trim after the bag is sealed.
  • Fill the bag snugly, not compressed. Compressed flower restricts vapor movement within the bag and creates uneven curing microenvironments.
  • Leave approximately 25% headspace at the top of the bag. This space is part of the system — it allows gas and vapor exchange within the sealed environment.
  • Tie the bag off in a knot. Bags are sized to make this possible without additional sealing tools. A clean, secure knot is sufficient closure.
    • Quick check: If you cannot tie a proper knot, you have overfilled the bag. Remove some flower and retry.
  • Label every bag: strain name, harvest date, bag date, and aW at time of sealing.
  • Stack bags flat or in a pyramid configuration. Avoid heavy stacking that creates compression on the bags at the bottom of the pile.

    • Step 6: Understand Why You Should Not Open Closed Bags

    This is one of the most critical, and most frequently misunderstood, aspects of curing with Xtend bags. Once a bag is tied, you have established a controlled microclimate. Opening it disrupts that system.

    When you open a sealed Xtend® bag:

    • You introduce ambient air with different temperature, RH, and gas composition
    • You create a condensation risk, particularly if the external environment is significantly drier or more humid than the bag interior
    • You reset the equilibrium the bag has been building since you sealed it
    • You expose active terpenes to a brief but real volatilization event

    The solution for monitoring without disruption:

    Use Bluetooth RH/temperature data loggers placed inside the bag at time of sealing. These sensors transmit data through the bag to a paired device, giving you continuous internal visibility without unsealing the system. This is the recommended approach for any grower who wants real-time insight without sacrificing the integrity of the cure.

    If you do need to open a bag - for sample pulls, QA checks, or other operational reasons - plan your openings intentionally, work quickly in a controlled-humidity environment, and reseal promptly.

    Step 7: Monitor the Cure in Progress

    Active monitoring during the first 2–3 weeks after bagging allows you to catch problems early and build the data foundation for future batch improvements.

    Monitoring protocol, weeks 1–3 post-bagging:

    • Place a wireless hygrometer inside at least one bag per lot at the time of sealing to capture the internal cure environment continuously
    • Conduct weekly aW spot-checks using the sealed jar method (Step 4) on open monitoring samples
    • Observe bags visually for:
      • Internal fogging or condensation → flower was bagged too wet; aW was above target
      • Aroma dulling or flat scent → potential terpene volatility issue; check temperature
      • Loss of structure or flattening → over-compression during stacking or fill
      • Crisp outer edges with soft interior → uneven moisture distribution; revisit airflow in your dry room

    Use every batch as a feedback loop. Adjust dry times, target aW windows, airflow positioning, and room conditions in subsequent batches based on what the data tells you.

    Step 8: First-Time Implementation: Start with One Batch

    If this is your first time using water activity monitoring and Bodee Labs Curing Bags with Xtend®, resist the urge to convert your entire operation immediately. A controlled, comparative first run gives you the most useful data.

    Recommended first-run protocol:

    • Select one cultivar for your trial batch
    • Run your standard cure method on an equivalent second batch of the same strain, harvested at the same time
    • Follow this SOP in full for the test batch — including aW monitoring at each stage
    • At the conclusion of the cure period, evaluate both batches on:
      • Aroma and terpene presence (nose test and lab panel if available)
      • Visual structure and trichome integrity
      • Moisture / aW at end of cure
      • Lab results, cannabinoid panel (THC, CBD, terpenes) and microbial/mycotoxin panel
      • Shelf behavior over 2-4 weeks post-cure, maintaining weight during longer-term storage is key

    The data from that single comparative batch will answer every question your operation has about whether and how to scale this process.