Quick answer: Exhibit halls are kept cool and dry, and show instruments sit on stands for eight hours a day. Plan humidity like you plan freight: stabilize every instrument at 45–55% RH for two weeks before the show, rotate display stock back into cases holding 49% overnight, and re-case everything with fresh two-way packs before load-out. The hall will not meet your instruments halfway.
Winter shows are the cruel joke of the instrument calendar: builders bring their best work of the year into the driest room they will ever occupy. Big January expos like NAMM in Anaheim happen in peak heating season, and convention-center air handling routinely parks halls well below 40% RH. Four days on a stand in that air is a real dose for a thin spruce top, and buyers notice sharp fret ends faster than they notice your booth banner.
The playbook, phase by phase
Two weeks out
Every instrument going to the show gets cased with a fresh Humidi-Cure® 49% pack and a hygrometer check, so the wood arrives at equilibrium in the middle of the safe band, not at the edge of it. Fresh matters: packs run for about 3 months, case airtightness is the biggest variable, and a show is exactly the wrong week to gamble on a spent one. Verify your meters first with our hygrometer guide.
Load-in
Keep everything cased until doors open. Note the hall's RH on arrival, because that number decides how aggressive your rotation needs to be. Crated backstock stays sealed with packs inside: a closed crate is a microclimate you have already paid for.
Show days
Rotate. The instruments on the wall at 10 am go back into their 49% cases over lunch, and the cased ones come out. Demo pieces return to the case between sessions instead of resting on a stand. Nobody on the floor can tell rotated stock from static stock, but your setups can by day three.
Overnight
Overnight is your recovery window: eight to twelve hours cased at 49% claws back most of what the day took. Every instrument goes back in its case with the packs, every case fully latched. This is the single highest-leverage habit in the playbook.
Load-out and after
Re-case with the same discipline, then leave everything cased for 48 hours at home base before judging condition. Check fret ends, action and top contour, and log anything that moved for warranty peace of mind.
| Phase | Main risk | The move |
|---|---|---|
| Two weeks out | Arriving already dry | Fresh 49% pack per case, hygrometer verified |
| Load-in | Early uncasing | Cased until doors, crates stay sealed |
| Show days | Eight dry hours on stands | Lunchtime rotation, demos re-cased between sessions |
| Overnight | Wasted recovery time | Everything cased at 49%, latched |
| Load-out | Judging condition too soon | 48 hours cased before inspection |
Booth kits for exhibitors
The math per show is small against the inventory on the table: one 4-pack of Humidi-Cure® 49% covers two large display cases for a season at $8.99. The packs hold 49% RH within about 2 points, work in both directions, and carry no liquid or gel, so there is nothing to leak into a crate of finished instruments in freight. The fill is a US-patented plant fiber, food-contact safe and compostable, which plays well with the sustainability line on your own booth.
For builders and dealers exhibiting across the circuit, from US winter expos to the Melbourne Guitar Show and the music fairs of Singapore and Seoul, our wholesale team assembles show kits sized to your crate list: packs, RH indicator cards for every case, and a one-page rotation checklist for booth staff. Write to info@atmosiscience.com with your instrument count and show schedule.
FAQ
How fast does a display guitar actually dry out?
Surface effects begin within hours and setup-level changes over days, which is why a four-day show without rotation reliably produces sharp fret ends by teardown. The case-overnight routine interrupts the cumulative dose.
Do wall hangers at the booth need their own solution?
Open-air display cannot be humidified meaningfully, in a booth or at home, as our wall hanger verdict explains. Rotation into cases is the working answer.
How many packs travel in a sealed crate?
Treat the crate like a big case: airtightness decides. A well-gasketed crate with four to six 60 g packs holds a stable band through freight; a loose crate is really open air.
Can we reuse show packs afterward?
Yes, packs continue their roughly 3-month service after the show. Check each case's RH card when you restock; a pack that has gone stiff and light is spent, and it composts.
Stock the booth: Humidi-Cure® 49% Humidity Pack, 4-pack of 60 g packs, $8.99, and the full instrument humidity collection.
Exhibitors, builders and distributors: wholesale program or info@atmosiscience.com for show kits.
Planning a show season?
Tell us your crate list and calendar and we will size a booth kit, with rotation checklist included.
