This was recently asked so I will lock this thread and tell you that is a matter well explained in physics:
I know a little about this subject because of physics. Time is the factor here. And, of course, vacuum sealing, is the answer.
The subject boils down to space between atoms/molecules, time, volatility, dilution, kinetic energy and concentration.
Effusion, is the escape of gaseous molecules through a small (usually microscopic) hole or "space" because at the atomic level, even a vacuum sealed bag is mostly made up of "space".
Now, the rate at which a molecule, or a mole of molecules, diffuses or effuses is directly related to the speed at which it moves and molecules are always in motion, the motion being faster when there is an increase in heat. Gaseous particles are in constant random motion and have much more kinetic energy than solids.
Drugs that are going to give off smell are either going to be organic compounds, meaning they’re carbon-based, or having sulfur and ammonia. How fast the smell will propagate and escape is going to determined by the molar mass of the substance and the tendency of the inner dimensions of the vacuum seal to crate an equilibrium. To account for this, we can try to compensate by double vacuum sealing, meaning further lengthening the time before molecules start making their way out to create a thermodynamic equilibrium.
The physics of fluids in non-linear is best described non-linear partial differential equations and the propagation is much slower than dense solids.
In 2024, the problem is no longer dogs.
Now, we face electrophysiological recordings, gas chromatography calibration, gas chromatographs, photoionization technology, PIDs (photoionization detectors) where a UV light source ionizes airborne molecules and the charge produced by ions measures concentrations down to low concentrations (∼few parts per billion) at a relatively high sampling rate of hundreds of Hertz.
But, at 7-10 days, double vacuum sealed, there should be very little prorogation.
Vac seal is Sealed. As long as outside of bag is clean. Treats in the car in a couple spots will definitely make them clock out in the head, especially if it's jerky like.
If your packaging skills and a drug dog is the only thing standing between you and a jail cell, I suggest you've made many, many mistakes before that point in time.
Dogs can work for around 45 minutes, normally they stay 2-3 hours, the chance is little u take that minutes, and make ur vacuum bag in something to eat, idk watch a little bit Jamie Oliver. Or Buy you a bigger dog, take car of him and teach him to go crazy when u do something, but is real difficult, i see that only 1 time. And i dont mean biting....
The problem is shitty vendors touching the product then touching the packaging with thier drity hands. Dogs can smell the residue on the fucking envelope after it traveled accross the fucking ocean. I can't get shipments of codien pills anymore.
You need 1 room to back and seal the drugs, another room to wash and dry, move to aother room to package. Everything separate and new gloves for each step of the shipment process. Double bag. pills are easy, cannabis and coke very hard. Can be done but need to be squeeky clean and have good stealth.
Vac seal is NOT sealed, contrary to what that other commenter says
Mylar should be your outside layer AND vacuum sealed around 3 times on the sinside, smell will escape through vacuum bags eventually, the key is to have so many layers that it wont get through the vacc bags before the time you get to your destination.
Now, i am no expert, but i heard that one good technique is to have your hidden stuff high up, since a dog is close to the ground, if you hid your stuff in the roof then theres going to be less change that the dog will pick it up.
Theres many more technique to it than i know, just do your research
But mylar bags are what is used in your darkweb markets as the outside layer, then usually inside double vacucum bagged with normal vacuum bags, so make that 3 to make sure you feel better about it, then mylar on the outside
dogs smell particles, the individual particles, so its not will they smell through something its just when, you need to get your stuff to B destination before the smell particles escape through all of you're layers
Okay, so... let's assume you're smart enough to know that once the dog is involved, the stakes are a lot higher in a lot of ways. The dog is faster than you, more aggressive, more disciplined, and has keener senses than you can ever hope to have.
Take into account what has been covered.
Now, you could do something unwise, and kinda fucked up, and hurt the dog. Set up a dog whistle in your car, put something that dulls it's sense of smell or dopes it on the compartment, or worse.
The moment the dog appears distressed, that officer is going to go full headcase on you. Remember, that's their bestie. They will fucking kill you if they think you hurt the animal in ANY WAY.
That leaves you with one option I know of that works, and it's how the officer gets the animal back under control after a tackle, or they find your stash, or they dig up a body:
Tennis ball time!
They're trained that they ONLY GET THE TENNIS BALL IF THEY ARE VERY GOOD DOGS.
But like, you're a person. You can have a tennis ball ANY TIME.
Bounce it quickly off the ground to get their attention and increase the excitement, bounce it away and they'll drop everything to give chase. If you did it right, you can wind them up enough that they can't refocus for a while.
Obviously, if the officer sees you doing it, you'd better have a tennis racket or be ready to outrun them.
Someone discussed this on coke sub recently. Don't recall the chemicals but for certain drugs you could put them into another reactive chemical to turn the cocaine or other drug into something undetectable. This was in the context of driving around with drugs though, obv useless for shipping purposes.
I have also heard discussion of just keeping a cup of coffee in your car to dump powdered drugs into, though this might b bad idea because I have heard in the past that putting drug like cocaine or ketamine into liquid means that the charges will be for the entire weight of the liquid. So like, if you dump 1 gram of cocaine into 999 grams of coffee you might be charged with having a kilo of extremely impotent cocaine. Not sure on legal aspect of this but I would advise researching it before using the idea
I know a little about this subject because of physics. Time is the factor here. And, of course, vacuum sealing, is the answer.
The subject boils down to space between atoms/molecules, time, volatility, dilution, kinetic energy and concentration.
Effusion, is the escape of gaseous molecules through a small (usually microscopic) hole or "space" because at the atomic level, even a vacuum sealed bag is mostly made up of "space".
Now, the rate at which a molecule, or a mole of molecules, diffuses or effuses is directly related to the speed at which it moves and molecules are always in motion, the motion being faster when there is an increase in heat. Gaseous particles are in constant random motion and have much more kinetic energy than solids.
Drugs that are going to give off smell are either going to be organic compounds, meaning they’re carbon-based, or having sulfur and ammonia. How fast the smell will propagate and escape is going to determined by the molar mass of the substance and the tendency of the inner dimensions of the vacuum seal to crate an equilibrium. To account for this, we can try to compensate by double vacuum sealing, meaning further lengthening the time before molecules start making their way out to create a thermodynamic equilibrium.
The physics of fluids in non-linear is best described non-linear partial differential equations and the propagation is much slower than dense solids.
In 2024, the problem is no longer dogs.
Now, we face electrophysiological recordings, gas chromatography calibration, gas chromatographs, photoionization technology, PIDs (photoionization detectors) where a UV light source ionizes airborne molecules and the charge produced by ions measures concentrations down to low concentrations (∼few parts per billion) at a relatively high sampling rate of hundreds of Hertz.
But, at 7-10 days, double vacuum sealed, there should be very little prorogation.