Best Salt for a Salt Gun: Table, Kosher, Sea or Rock Salt?
Last updated: October 28, 2026
The best salt for a salt gun is plain, dry, fine table salt. It is what salt gun makers recommend, it flows through the hopper without jamming and it costs almost nothing. Kosher salt divides owners: some say it hits harder, others notice no difference and it can clog. Coarse sea salt, Himalayan chunks and rock salt are too big for a pump-action salt gun.
Salt types compared
| Salt | Works in a salt gun? | Notes |
|---|---|---|
| Table salt (iodized or plain) | Yes, the default | Fine, even grains flow well |
| Kosher salt | Sometimes | Bigger grains; some owners report harder hits, others more clogs |
| Fine sea salt | Usually | Treat it like table salt if the grains are fine and dry |
| Coarse sea salt | No | Grains too big for the chamber |
| Himalayan pink salt (ground fine) | Usually | Coarse chunks will jam |
| Rock salt | No | Far too large for a pump-action salt gun |
| Sand, sugar, pepper | Never | Can jam the mechanism; sugar attracts more bugs |
Why table salt is the safe choice
A salt gun drops a small measure of salt from the hopper into the chamber each time you pump. Fine, even grains fill that space the same way every time, which gives a consistent shot. Salt gun makers specify ordinary granulated table salt for that reason, and say other substances can cause problems.
Is kosher salt better in a salt gun?
This is the most argued question among salt gun owners. On forums, some owners say switching to kosher salt made a big difference to their hit rate, and one claimed it went from roughly 30% to 90%. Others tried it and noticed no change, and some got more clogs.
Part of the reason is that “kosher salt” is not one thing. According to a Salon comparison, Diamond Crystal kosher salt forms hollow, pyramid-shaped grains, while Morton kosher salt is made by rolling crystals into thin, dense flakes. Different shapes and densities will behave differently in a small chamber.
Our advice: start with table salt. If you want to try kosher salt, test it: fire 10 shots of each at kitchen foil from 2 feet and compare the dents. Go back to table salt at the first sign of clogging.
Why salt gets damp, and why that matters
Salt pulls moisture from the air. Damp salt clumps, sticks to moving parts and is the most common cause of a clogged salt gun. Owners in humid climates say leaving the gun outside makes the salt clump.
- Keep your salt in a sealed container.
- Empty the hopper if you will not use the gun for a while.
- Store the salt gun indoors, not in a damp shed or garage.
- Refill with fresh, dry salt if shots feel weak.
What if it is already clogged?
- Empty all salt from the hopper and tap out loose grains.
- Add a few drops of warm (not boiling) water and let it sit for a couple of minutes.
- Pump and fire several times with no salt loaded until it moves freely.
- Dry it completely: a hair dryer on low, an afternoon in the sun or up to 48 hours indoors.
- Reload with fresh, dry salt.
How much salt does a salt gun use?
Each shot uses about a pinch, so a small container lasts a long time. Keep the hopper reasonably full: owners report that a nearly empty hopper can give a thin, weak shot, and a light shake after pumping helps fill the chamber.
Ready to load up?
Every Bug-A-Buster salt gun has a top-loading hopper that takes ordinary table salt, so there are no special refills to buy. New to salt guns? Start with what a salt gun is and how it works.
FAQ
What kind of salt goes in a salt gun?
Plain, dry, fine table salt. It flows through the hopper without jamming and is what salt gun makers recommend.
Can you use kosher salt in a salt gun?
Often yes, and some owners say it hits harder, but others see no difference and kosher salt can clog. Test it and switch back to table salt if it jams.
Can I use rock salt in a salt gun?
No. Rock salt grains are far too big for a pump-action salt gun and will clog it.
Can you put sugar or sand in a salt gun?
No. They can jam the mechanism, and sugar attracts more insects.
Why is my salt gun clogging?
Almost always because the salt has absorbed moisture. Keep salt sealed, empty the hopper between uses and store the gun indoors.
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