I clean my MFLB after every few uses just to keep it in good condition. However, i noticed that the inside part of the box that is inaccessible has residue in it. Is this a problem? How can i clean it once it becomes decently dirty?
As you use it, yeah, there will be a build up of resin inside the box. There's nothing you can really do about it. Now it's possible to clean inside there, you just need something long and skinny. The second most important thing you need for this job is steady hands. One slip could result in a broken screen—we wouldn't want that now would we? Nevertheless, the buildup of residue is nothing to worry about. It's not going to take away from the vaping experience. I have a couple of these lying around for some reason, this is what I used to clean the inside of my box just by scraping it around in there carefully.