📋 Overview
Recording dry weight is the final step in converting your harvested cannabis to dried inventory. This process captures the official dry weight after the drying period and updates your inventory from wet grams to dry grams.
When you record a dry weight, GrowerIQ:
- Creates an official dry weight record for the batch
- Generates a signature audit trail for compliance
- Advances the batch to the next processing stage
- Updates inventory from wet grams (g-wet) to dry grams (g-dry)
Regulatory Compliance
Accurate dry weights are required for Health Canada reporting. All dry weight entries require three signatures to ensure proper oversight and accountability.
✅ Prerequisites
Before recording a dry weight, ensure:
| Requirement | Details |
|---|---|
| Batch in Drying stage | The batch must have completed harvest weight recording and be in Drying stage |
| Drying complete | Cannabis has dried to your target moisture level |
| Scale calibrated | Use a calibrated scale appropriate for the weight range |
| Three users available | Different users must provide Weighed By, Checked By, and Approved By signatures |
📝 Step-by-Step Instructions
Step 1: Navigate to Your Batch
- Go to Cultivation & Processing from the main menu
- Find your batch in the batch list or use search
- Click on the batch to open the batch detail page
Step 2: Open the Record Dry Weight Dialog
- In the Actions panel, click Record Dry Weight
- This button only appears when the batch is in Drying stage
Curing Stage
The same process applies for the Curing stage. When your batch is in Curing, you'll see a Record Cured Weight button instead. The dialog and workflow are identical.
Step 3: Enter Dry Weight Details
Total Dry Weight
Enter the total dry weight in grams (g). For imperial units, the system will convert automatically.
Weight Loss is Normal
Expect 75-85% weight loss from wet to dry. If your dry weight is more than 30% of wet weight, double-check your measurements.
Timestamp
Select the actual date and time the dry weighing occurred.
Scale Selection
Select the scale used for weighing (optional but recommended for audit trails).
Weight Activity Name (Optional)
Enter a descriptive name for this weight activity if desired.
Step 4: Complete Required Signatures
Three Signatures Required
Every dry weight entry requires three separate signatures. This is a compliance requirement and cannot be bypassed or reduced.
Complete the signatures in order:
| Signature | Purpose | Who Should Sign |
|---|---|---|
| ⚖️ Weighed By | Confirms the person who physically weighed the dried cannabis | The operator who performed the weighing |
| 👁️ Checked By | Verifies the weight was recorded correctly | A second team member who witnessed/verified |
| ✅ Approved By | Final approval of the weight record | Supervisor or authorized approver |
How Signature Authentication Works
Your organization can configure whether password authentication is required:
Password Authentication OFF (Default):
- Select the signer's name from the dropdown
- Signature is recorded immediately
- Faster workflow for trusted environments
Password Authentication ON:
- Select the signer's name from the dropdown
- Enter the user's password to authenticate
- Provides additional verification
Organization Setting
Password authentication is controlled by your organization's Enable Signature setting in Admin > Organization Settings. Contact your administrator to change this configuration.
Best Practice: Use Different Signers
For maximum compliance and oversight, use three different people for each signature role. While the system may allow the same user in some workflows, regulatory best practice is to have independent verification.
Step 5: Review and Submit
- Review all entered information
- Verify the dry weight is reasonable (typically 15-25% of wet weight)
- Ensure all three signatures are complete
- Click Submit to record the dry weight
📊 Expected Weight Loss
Cannabis loses significant weight during drying as moisture evaporates:
| Starting Material | Expected Dry Weight |
|---|---|
| Freshly harvested | 15-25% of wet weight |
| Partially dried | 40-60% of starting weight |
Moisture Targets
Target moisture content is typically 10-15% for dried cannabis flower. Weights outside the expected range may indicate incomplete drying or measurement errors.
💡 Tips and Best Practices
⚖️ Weighing Accuracy
- Zero your scale before each weighing session
- Remove stems and trim before weighing if required by your SOP
- Use calibrated scales and select them in the dialog for audit compliance
✍️ Signature Management
- Use different signers - Best practice is to have three different people sign
- Plan ahead - Ensure all three required signers are available before starting
- Password security - If password authentication is enabled, never share passwords
📅 Backdating
- You can backdate dry weight records to the actual weighing time
- The timestamp must be between when the batch entered Drying stage and now
- Do not select future dates
⚠️ Troubleshooting
Common Issues
| Issue | Cause | Solution |
|---|---|---|
| Button does not appear | Batch not in Drying stage | Verify batch stage is Drying, not Harvesting or Curing |
| Cannot save weight | Missing signature | Ensure all three signatures are complete |
| Password rejected | Wrong password or user | Verify correct user selected, re-enter password |
| Weight seems too high | May have weighed wet | Ensure drying is complete before weighing |
| User not in dropdown | Lacking permissions | Contact admin to grant appropriate permissions |
Weight Not Saving
The most common cause is incomplete signatures. Ensure all three signatures (Weighed By, Checked By, Approved By) are completed before clicking Submit.
➡️ What Happens Next
After recording dry weight:
- ✅ Stage Advances - The batch moves to Curing or QA stage (based on your batch plan's end type)
- ✅ Inventory Updates - Your inventory now shows dry grams (g-dry) instead of wet grams
- ✅ Compliance Record - Weight record with signatures is stored for audits
- ✅ Next Actions - Proceed to curing, quality assurance, or packaging as needed
Stage Progression
- Batches with cured end type: Drying → Curing → QA
- Batches with dry end type: Drying → QA
📚 Related Articles
- How to Record Harvest Weight
- Understanding Batch Stages
- Recording Trim and Waste
- Health Canada Reporting Overview