The glass stems are the bit that gets filthy on a Solo. Resin builds up inside the tube, the flavour turns muddy and brown, and a stem that started clear ends up looking like cold tea. Good news is the fix is dead easy. A soak in isopropyl and the glass comes back clear, and the taste comes back with it.
This covers the original Arizer Solo and the Solo 2. They clean the same way, and the stems are the same idea on both: a glass tube with a little bowl at the end that drops into the heater. It’s one of the easier vaporisers to keep clean, honestly, because the part that gets dirty just lifts straight out.
What you’ll need
- Isopropyl alcohol, 90% or higher
- A couple of pipe cleaners and some cotton buds
- A small zip-lock bag or a glass to soak in
- Warm water for rinsing
- A spare screen or two, if yours are tired
Step by step
1. Let it cool right down. This matters more on the Solo than most units. The stem is glass, and glass hates a sudden temperature change. A hot stem dunked in cool alcohol can crack. Give it ten minutes off the heat first.
2. Tip out the old herb and have a look. Empty the bowl end of the stem. If there’s a screen sitting in there, note whether it’s loose or fixed before you go poking at it.
3. Soak the glass stems in isopropyl. Drop them in a zip-lock bag or a glass with enough alcohol to cover the tube. Twenty to thirty minutes for a normal clean, longer if the resin’s really caked on. You’ll see the gunk start lifting off the inside on its own.
4. Run a pipe cleaner through. After the soak, push a pipe cleaner down the length of the tube to clear the loosened residue. A cotton bud gets into the bowl end. The glass should go back to clear, not cloudy.
5. Rinse and dry fully. Rinse the stems under warm water to get all the alcohol off, then stand them up to air-dry completely. Any alcohol left in the tube will taste vile on your next session, so don’t rush this.
6. Brush out the heater bowl. With the unit off and cool, give the bowl a gentle brush to clear stray herb and dust. Keep it dry. No liquid goes in there.
7. Wipe the body. A barely-damp cloth on the outside is all the casing needs. Keep water away from the bowl and the charging port.
What not to do
- Don’t dunk a warm stem in cool alcohol. Thermal shock is the number one way people crack a Solo stem. Cool first, every time.
- Don’t pour alcohol into the heater bowl. The body isn’t sealed against it, and you’ll risk the electronics.
- Don’t scrape the inside of the glass with anything metal. A scratched stem is a stem that’s one knock away from snapping.
- Don’t reassemble while anything’s still damp. Wet glass plus a hot bowl makes a harsh, spitty first pull.
- Don’t leave a soaked stem to dry with alcohol pooled inside. Stand it upright so it drains.
A note on screens and stems
The Solo’s flat screen in the bowl end stops bits of herb getting pulled up the stem. It clogs over time, and a clogged screen drags at the draw and traps resin. Lift it out, give it the same soak, and swap it when it stops coming clean. Screens are wear parts, same as anything.
Stems are wear parts too, in the sense that they break. Glass is glass. Most people who use a Solo for a while end up keeping a spare stem around, because a cracked one mid-week is a sad thing without a backup. The aroma tube and the shorter stem both clean the same way, so the routine above works whichever you’re running.
Keep the glass clear and the Solo rewards you with that clean, bright flavour it’s known for. Let it go and everything tastes a bit like an ashtray.
If you want the rest of the Arizer line-up and where each one fits, our Arizer collection lays it out. For the isopropyl, pipe cleaners and spare screens that make this a five-minute job, have a look at cleaning products. And there’s broader advice on looking after any unit in vaporizer maintenance.