TESTING RESULTS
The Performance Data Behind the Promise.
Every claim Pop-Vac makes about preservation, seal integrity, and product stability is backed by third-party testing and documented results. This is the data that sets us apart.
VAPOR LOSS FOR CONCENTRATE
Less Vapor Loss. More Product Delivered.
Vapor Loss (% per Year)
Certified Lab Testing of Market-Leading Concentrate Jars
Vapor Loss (% per Year)
Certified Lab Testing of Market-Leading Concentrate Jars
In independent USP <671> moisture vapor transmission testing, the Pop-Vac 4ml child-resistant concentrate jar lost an average of 0.45% of its water weight per year — about 3.3× less than a leading 5ml non-child-resistant glass jar (1.50%) and 3.8× less than a leading 5ml child-resistant glass jar (1.70%). A competing 4ml resealable jar lost 284.16% per year and failed the test.
| Container | Average vapor loss (% per year) | Range across 10 containers | USP <671> result |
|---|---|---|---|
| Pop-Vac 4ml child-resistant jar | 0.45 | 0.1–0.8 | Pass (“tight”) |
| 5ml glass jar, non-child-resistant | 1.50 | 1.1–1.9 | Pass (“tight”) |
| 5ml glass jar, child-resistant | 1.70 | 1.3–2.0 | Pass (“tight”) |
| 4ml resealable gasket jar | 284.16 | 167.5–402.5 | Fail — not “tight” |
| 3oz (90cc) PET bottle | 1.95 | 1.9–2.1 | Pass (“tight”) |
The chart’s vertical axis stops at 2.5% per year, the USP “tight” limit; the 4ml resealable jar’s bar is cut off at that line and labeled with its actual result.
How it was tested: Independent laboratory CS Analytical (Clifton, NJ) tested ten containers of each type to USP–NF 2024 <671> Containers – Performance Testing, moisture vapor transmission rate (MVTR) Method 8, using water as the fill. Results are the average percent of water weight lost per year. USP classifies a container as “tight” when no more than 1 of 10 containers exceeds 2.5% per year and none exceeds 5.0% per year. Testing started ; Certificate of Analysis issued . Download the concentrate Certificate of Analysis (PDF).
The Pop-Vac jar’s performance is backed by independent Moisture Vapor Transmission (MVT) testing to USP <671>, which measures how much of a sealed container’s contents escapes over time. The test uses water as a proxy for terpene-range volatiles — chosen for its centrality to the boiling point range of most terpenes and volatile compounds found in cannabis. In that test, the Pop-Vac jar lost less water than every other concentrate container tested.
In practice, a tighter seal leaves less opportunity for the volatile compounds responsible for aroma, flavor, and effect to escape during storage and distribution — so your product reaches the consumer closer to the experience it was intended to deliver.
VAPOR LOSS FOR FLOWER
Your Flower's Terpenes Deserve Better Protection.
Vapor Loss (% per Year)
Certified Lab Testing of Market-Leading Flower Jars
Vapor Loss (% per Year)
Certified Lab Testing of Market-Leading Flower Jars
In independent USP <671> moisture vapor transmission testing, the Pop-Vac 1/8oz child-resistant flower jar lost an average of 0.14% of its water weight per year — about 2.6× less than a leading 100ml non-child-resistant glass jar (0.36%), 2.9× less than a 25-dram child-resistant jar (0.40%), and 6× less than a leading 120ml child-resistant glass jar (0.85%).
| Container | Average vapor loss (% per year) | Range across 10 containers | USP <671> result |
|---|---|---|---|
| Pop-Vac 1/8oz child-resistant jar | 0.14 | 0.0–0.2 | Pass (“tight”) |
| 100ml glass jar, non-child-resistant | 0.36 | 0.3–0.5 | Pass (“tight”) |
| 25-dram child-resistant jar | 0.40 | 0.3–0.7 | Pass (“tight”) |
| 120ml glass jar, child-resistant | 0.85 | 0.8–1.0 | Pass (“tight”) |
The chart also shows a 3oz (90cc) PET bottle (1.95% per year), which was tested by the same lab and method in the December 2024 concentrate study.
How it was tested: Independent laboratory CS Analytical (Clifton, NJ) tested ten containers of each type to USP–NF 2024 <671> Containers – Performance Testing, moisture vapor transmission rate (MVTR) Method 8, using water as the fill. Results are the average percent of water weight lost per year. USP classifies a container as “tight” when no more than 1 of 10 containers exceeds 2.5% per year and none exceeds 5.0% per year. Testing started ; Certificate of Analysis issued . Download the flower Certificate of Analysis (PDF).
Flower is among the most volatile cannabis formats to package — terpene profiles, moisture balance, and cannabinoid integrity are all sensitive to oxygen exposure and environmental fluctuation during storage and distribution. In independent Moisture Vapor Transmission (MVT) testing to USP <671>, Pop-Vac flower jars lost less water than every leading alternative tested. The test uses water as a proxy for terpene-range volatiles — the compounds responsible for aroma and the intended effect of your product.
For flower producers and processors, that means better moisture retention and a tighter barrier against terpene loss between fill and first open, so your product reaches the consumer closer to the condition it left your facility. What goes in stays in.
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