E-Rigs & Dab Rigs

After every session is the honest answer, and it's worth explaining why concentrate rigs need more frequent water changes than a dry herb bong. When you dab, vaporized wax passes through the water and leaves behind dissolved residue with every hit. That residue builds up quickly, and stale rig water doesn't just taste bad; it actively pulls flavour out of your vapour in a way that fresh water doesn't. If you've ever taken a hit from a rig that's been sitting for a day or two and noticed it tasting flat or slightly off, that's what you're experiencing.

The other reason to change it often is that concentrate residue in water goes rancid faster than dry herb resin does. Wax is an oil-based material, and oil sitting in water at room temperature starts to smell within 24 hours. A recycler design like the MJ Arsenal Mini Jig Mini Dab Rig or the Claude keeps water moving during a session, which helps prevent stagnation while you're actually dabbing, but it doesn't slow down what happens between sessions when the water is just sitting there.

The practical habit most people land on is: dump the water when you're done, give the rig a quick rinse, and refill fresh before the next session. It takes about 30 seconds and makes a noticeable difference in how clean each hit tastes. If you're using a mini rig like the MJ Arsenal Apollo Mini Dab Rig or the Red Eye Glass 8" Tall Concentrate Dab Rig, the water volume is small enough that this really isn't a burden. Think of it the same way you'd think about rinsing a coffee mug rather than leaving yesterday's coffee sitting in it.

The core difference is form factor and how directly the vapour travels to you. A wax pen is a handheld, self-contained device where concentrate sits on a coil or atomizer inside the pen body, and you draw directly from a mouthpiece a few centimetres away. A dab rig routes that vapour through water before it reaches you, which cools it, filters it, and changes the texture of the draw in a way that most experienced users find noticeably smoother. That water filtration step is the defining feature of any rig, whether it's a glass piece with a torch or an e-rig with a built-in heater.

Wax pens are more portable and more discreet. You can load one, slip it in a pocket, and use it anywhere without setting anything up. A glass rig like the MJ Arsenal Apollo Mini Dab Rig is compact by rig standards, but it still requires water, a flat surface, and a torch or heat source. That's a setup, not a pocket grab. The tradeoff is that pens, especially coil-based ones, tend to run hotter and less precisely than a properly heated quartz banger, which means more variation in flavour and efficiency from hit to hit.

Where a dab rig genuinely pulls ahead is in the quality of the experience per hit. The water path cools the vapour enough that you can take a longer, more comfortable draw, and because a quartz banger retains heat more evenly than a small coil, you're vaporizing concentrate more completely rather than burning the edges. If you're someone who uses concentrates regularly at home and cares about getting the most out of each session, a rig is worth the extra setup. If you're mostly on the go and convenience matters more than optimizing each hit, a wax pen makes more sense for your situation.

Most wasted concentrate comes down to two things: temperature and airflow. If your banger is too hot when you load your material, part of it combusts instead of vaporizing, and you lose both flavour and potency in that first contact. If you draw too hard without a carb cap, you're pulling air across the surface faster than the vapour can form, which means concentrate pools at the bottom of the banger and either burns off unevenly or just sits there cooling without fully vaporizing.

Temperature management is the bigger variable. The previously generated guide on this page covers how quickly quartz bangers lose heat after the torch comes off, so the short version here is: let the banger cool for 30 to 45 seconds after heating before you load your concentrate, then load and draw immediately rather than waiting. If you load too early, the material scorches. If you load too late, the surface is too cool to vaporize it efficiently and you'll see it pool and harden at the bottom. That leftover residue is reclaim, and while some people collect it, it's a sign that the dab wasn't fully consumed.

A carb cap is the other half of the equation, and it matters more than most beginners realize. Covering the banger restricts airflow and creates a low-pressure environment inside the bucket that allows concentrate to vaporize at lower temperatures. That means less material lost to overheating, and more of it converted into vapour you actually inhale. If you're using a flat-top or bucket-style banger on any of the MJ Arsenal rigs, a directional carb cap that lets you swirl the airflow around the bucket will do a noticeably better job of keeping the concentrate moving and vaporizing evenly than a basic cap that just sits on top.

They're not strictly required, but skipping one means you're leaving a real amount of your concentrate behind on every dab. Here's what actually happens without one: when you draw on an open banger, you're pulling a large volume of ambient air across the surface. That air cools the banger faster and dilutes the vapour before it even reaches the water chamber. The concentrate that doesn't vaporize in that window pools, cools, and either burns off as waste or sits as reclaim. You can still take a hit without a carb cap; it just won't be as efficient.

With a carb cap in place, you're restricting that airflow and creating a pressurized environment inside the banger that keeps the temperature up longer and allows concentrate to vaporize at lower surface temperatures. That's especially useful if you prefer lower temperature dabs, which preserve more of the terpene profile and produce smoother vapour. At a lower temp without a carb cap, you'd lose a significant portion of your concentrate to pooling. With one, that same material vaporizes fully because the reduced airflow gives it time to do so.

The style of cap matters depending on what banger you're running. A flat-top banger takes a directional or spinner cap that lets you guide airflow in a circular pattern, which keeps the concentrate moving around the bucket rather than sitting in one spot. A standard domed cap works fine on a basic bucket banger but won't give you that directional control. If you're using any of the glass rigs in this lineup with their included quartz bangers, a directional carb cap is a genuinely worthwhile addition to your setup, not an optional accessory.

A butane torch is the standard choice, and for good reason. Butane burns cleanly, reaches the temperatures needed to heat a quartz banger properly, and is widely available. The main variable isn't the fuel type; it's the size of the flame and the torch's output. A small, single-flame culinary torch (the kind used for crème brûlée) will heat a quartz banger, but it takes considerably longer and produces uneven heating because the flame is too narrow to cover the banger's surface evenly. You'll find yourself holding the flame in one spot, which can stress the quartz over time.

A dedicated concentrate torch with a wider, more concentrated flame heats the banger faster and more evenly, which is better for the glass and gives you more consistent results session to session. The goal is to heat the banger until it glows faintly, then let it cool to your preferred temperature before loading, and a torch with adequate output makes that process predictable rather than variable. Torches with adjustable flame control are worth the slight extra cost because you can dial back the output when you want a gentler heat cycle.

One thing to be aware of: propane torches run hotter than butane and can overheat a quartz banger faster than most people expect, especially on a mini rig where the banger is closer to the glass joint. Overheating quartz repeatedly causes it to devitrify, which means the surface becomes cloudy and porous and stops vaporizing concentrate as cleanly. If you're using an MJ Arsenal mini rig or the Red Eye Glass 8" Tall Concentrate Dab Rig and want to protect your banger, a quality butane torch with adjustable output is the safer and more practical tool for regular use.