Is there a way of making powder "invisible" to law enforcement dogs? A special wrapping paper, container, or spray maybe?

how do you know said powder can even be detected by drug dogs? You need to be ore specific.

and yes it is possible to hide drugs from drug dogs.

there are a few methods.

First, you could use vacum seald bags and wear gloves when packaging the substance and then wash and sanitize the out side of the bags very well and I mean VERY WELL because you need to have 0 residue on the outside of the bags.After you sanitize the bag of all residue you would vacum seal it one more time with a different sealer at location where residue has never been present. and then repeat on more time.

or you could use things like decoys for dogs thet may not be trained aswell.(this is no gurantee) But if there is food all over the car for example, dogs do not perform as well. but, some dogs may be better at resisting the food. it is common for the officer to remove all food items before the search to keep the dog from losing its attention.

It's commonly detected by dogs... But good call on the vacuum pack. I was just going to saran wrap the shit out of it. I thought about maybe a pepper spray or something similar but I figured that would be painful, messy, and possibly damaging to the product. Maybe wiping the final bag with rubbing alcohol?

I would say your best bet is to never even get your self in a situation where a drug dog is serach through your shit.

Yes dogs do commoly detect vacuum sealed drugs because residue is left on the outside. The is no way a dog can smell through a vacuum seal. If air cant get in then smell can not get out.

edit: O i see you mean the said powder is commonly detected by dogs.

Unless you are moving large quantities and/or long distances the amount of work involved is simply too much for you to bother. And even if you are moving large quantities and long distances that warrent such security, unless you have your own drug dog to test your success you will never know for sure until it's too late if you messed up. As said it is better to avoid a situation where a dog will be sniffing your shit altogether.

As said vacum sealing will work, however the problem is always residue.

I'm an extremely careful person when it comes to things like this. I hate even mentioning it online. I stay very inconspicuous and there should never be the slightest reason for a dog to become involved. However I would like to be covered on all angles.