I have never tried that but I have read the following:
If the marijuana is to be stored for more than a few months, you can use a vacuum sealer (designed for storing food) to seal the marijuana in an airtight environment. If stored in a dark area that is between 40-55 degrees F, the marijuana in vacuum sealed plastic will remain potent for up to 5 years.
Dry marijuana can be stored in a frost-free freezer, but some of the THC on the outer part of the buds may be damaged when frozen. A refrigerator is in the right temperature range but they tend to be humid (unless you can control the humidity).
If stored in an area of high humidity for months or years, even vacuum sealed marijuana can eventually become as humid as the surrounding air. This will necessitate drying it again before smoking. But, unless mold develops, humidity itself will not degrade the THC or make the marijuana any less potent.
Light will degrade some of the THC, so dark containers can be used for storage. If you place the marijuana in a see through container, it will have to be located in a dark area that is not exposed to light or high temperatures.
Always make sure to properly dry your marijuana prior to storage, if you grow your own or if the stuff you have is very moist.
And remember that to preserve marijuana potency at a maximum level, keep any exposure to air, heat, and light at a minimum.Hi I was wondering if anyone here has used a vacuum sealer to store their buds? If so which brand and model do you use? I'm looking at mabey a Food Saver…
Want to seal marijuana odor? Pack it in double vacuum-sealed bags, study says
A real-life arrest has inspired a study that investigated various packaging methods for concealing marijuana odor.
In 2017, a Colorado State Trooper pulled over a car to the side of Interstate 70 for a minor traffic infraction. The police officer, who works on highway narcotic smuggling, claims he immediately sensed a strong marijuana odor once he approached the car. He proceeded to conduct a probable cause search based on the strong smell and “other indicators”, which revealed two vacuum duffle bags filled with 52 pounds of marijuana, a wad of thousands of dollars in cash, and a secondary phone.
Later, in court, the defendant pleaded guilty for possession with intent to distribute. However, he challenged the motive of the search and did so in a highly unusual way for this kind of offense. His lawyer hired Dr. Avery Gilbert, a self-described “smell scientist” and “sensory psychologist”, and Dr. Joseph Diverdi, a professor of chemistry at Colorado State University, who examined the evidence and took samples of air inside the evidence bags holding the vacuum packs.
“There’s long tables just filled with bagged weed. I’d never seen anything like it,” Gilberg told Leafly. The marijuana was still in the double vacuum-sealed bags. “Coming as close as we could to sniffing those packages, I couldn’t smell a damn thing.”
In the lab, the two researchers examined the air samples with a gas chromatography machine, focusing on the concentrations of six terpenes known to give marijuana its conspicuous odor. The examination confirmed the researchers’ initial subjective assessment of the sealed marijuana — the odor molecules were in a far too low concentration to be detected by people.
Although the case was over (the man found with the marijuana in his possession received a two-year deferred sentence, a fine, and community service), the two researchers thought that marijuana odor concealment merits more scientific attention.
Back in the lab, they set up an experiment with 21 participants familiar with the smell of cannabis. The participants had to select the correct packaging that contained marijuana from ten sample pairs. Four different packaging methods were used: Ziploc bags, thin plastic produce bags, pop-top canisters, and a vacuum-sealed heavy plastic bag inside another vacuum-sealed bag. An open glass bowl was also used to act as a control.
The participants immediately recognized the package containing marijuana when it placed in an open glass bowl, the Ziploc bag, and the produce bag. The pop-top dispensary canister yielded mixed results.
However, vacuum-sealed marijuana seems to have been the least conspicuous out of all the packaging methods. According to the results, which were published in the journal Science & Justice, the “material packaged in doubly vacuum-sealed plastic was correctly identified at rates no different from chance.”
Since the experiment showed that people with experience handling marijuana had great difficulty identifying it in a double-sealed vacuum bag, what would be the odds that the officer could smell it (from outside the car while the bag was inside a suitcase)? That’s extremely unlikely.
The findings “may help address issues involving the detectability of cannabis aroma in law enforcement and other scenarios,” the researchers concluded.A real-life arrest has inspired a study that investigated various packaging methods for concealing marijuana odor. ]]>