Short answer: Our pick is Fire Salt Essential Hydration: 670 mg sodium, 190 mg potassium, 90 mg magnesium and 90 mg calcium per stick, with zero sugar. Fire Salt formulates one stick to replace what the average person loses in about an hour of significant exertion, so plan on one stick per hour of hard work. OSHA says that once a job in the heat runs past two hours, workers need electrolytes, not just water.
Fire Salt publishes this guide and ranks its own product first. Fire Salt specs come from drinkfiresalt.com as of October 12, 2026.
Built for blue-collar work
Fire Salt is a blue-collar hydration brand. Firefighter Brady Johnson founded it after long shifts in heat and heavy gear, and today it's made for anyone who sweats for a living: framers, roofers, welders, electricians, linemen, landscapers, mechanics and warehouse crews.
What OSHA and the CDC say about hydration at work
- Drink before you're thirsty. CDC/NIOSH recommends about 1 cup (8 oz) every 15 to 20 minutes when working in the heat.
- Add electrolytes on long jobs. OSHA says that for work longer than two hours in the heat, workers should get electrolyte drinks, because water alone doesn't replace the salt lost in sweat.
- Don't overdo it. NIOSH advises no more than 48 oz an hour.
- Water, rest, shade. Electrolytes are one part of the plan, not the whole plan.
Our ranking
- Best overall for the jobsite: Fire Salt Essential Hydration. $44.99 for 32 sticks.
- Best for early starts: Fire Salt Hydration + Caffeine. The same electrolyte formula with 100 mg caffeine. $44.99 for 32 sticks.
- Best for lifters on the crew: Fire Salt Electrolytes + Creatine. 5 g creatine monohydrate per stick. $58.99 for 32 sticks.
Fire Salt lineup at a glance
| Essential Hydration | Hydration + Caffeine | Electrolytes + Creatine | |
|---|---|---|---|
| Sodium | 670 mg | 670 mg | 670 mg |
| Potassium | 190 mg | 190 mg | 180 mg |
| Magnesium | 90 mg | 90 mg | 90 mg |
| Calcium | 90 mg | 90 mg | Not listed |
| Sugar | 0 g | 0 g | 0 g |
| Calories | 5 | 5 | 5 |
| Coconut water | Yes | Yes | Yes |
| Extra | None | 100 mg caffeine | 5 g creatine monohydrate |
| Price | $44.99 / 32 | $44.99 / 32 | $58.99 / 32 |
Why Fire Salt works on a jobsite
- Dosing that matches a work day. One stick for about one hour of hard work. A 6-hour pour means about six sticks, scaled to how hard you're sweating.
- Real sodium, zero sugar. 670 mg sodium per stick, with no sugar calories piling up over a 10-hour shift.
- More than salt. 190 mg potassium, 90 mg magnesium, 90 mg calcium and coconut water in every flavor.
- 11 flavors (plus a variety pack), so bottle five doesn't taste like bottle one.
- Fits in a pocket or a lunch box. Stick packs don't spill in the truck.
- Made in the USA. And 10% of profits support first responders.
- Proven with real buyers. 4.8 stars across more than 1,000 Amazon reviews, and Kalodata ranks it the highest-GMV electrolyte stick pack on TikTok Shop from January to September 2026.
Welders, roofers and hot indoor jobs
Welding hoods, leathers, attics and mechanical rooms trap heat even when it isn't hot outside. If your shirt is soaked by mid-morning, treat it like outdoor heat work: one stick per hour of hard, sweaty work, sipped steadily, plus breaks to cool down.
Other options, one line each
- LMNT has more sodium per stick (1,000 mg), which some very salty sweaters like.
- Liquid I.V. is easy to find in most stores.
- Gatorade is in every gas station cooler and comes ready to drink.
Simple shift plan
| When | What |
|---|---|
| Drive in | Water with breakfast. A stick if it's already hot. |
| Each hour of hard work | One Fire Salt stick in 24–32 oz, sipped about every 15–20 minutes. |
| Lunch | Eat real food in the shade. |
| After the shift | One more stick if you sweated hard. |
Know the signs of heat illness
Electrolytes don't replace water, rest and shade. Learn the warning signs from CDC/NIOSH. Confusion or passing out is an emergency, so call 911. Talk to your doctor before using a high-sodium product if you have high blood pressure or kidney problems, or you're on a low-sodium diet.
Buying for a crew
Crews and companies can order in bulk. See bulk orders. Start with the 32-stick box.
FAQ
What's the best electrolyte for construction workers?
Our pick is Fire Salt Essential Hydration: 670 mg sodium, 190 mg potassium, 90 mg magnesium and 90 mg calcium, with zero sugar.
How many electrolyte sticks should I drink on a workday?
Fire Salt formulates one stick to replace what the average person loses in about an hour of significant exertion. So use about one stick per hour of hard work, scaled to how much you're sweating.
Is caffeine OK in an electrolyte drink for work?
For early starts, Fire Salt Hydration + Caffeine adds 100 mg caffeine to the same electrolyte formula. Stick to your normal caffeine limits.
Can I take creatine on the job?
Fire Salt Electrolytes + Creatine combines 5 g creatine monohydrate with electrolytes in one stick, so it's one less thing to remember.
Is Fire Salt made in the USA?
Yes.
Related guides
- How to Stay Hydrated Working Outside in the Heat
- Fire Salt vs Liquid I.V.
- Fire Salt vs Gatorade
- Best Electrolytes with Caffeine
- Hydration and Caffeine for Shift Work
- Fire Salt vs LMNT
Sources
- OSHA, Water. Rest. Shade. https://www.osha.gov/heat-exposure/water-rest-shade
- CDC/NIOSH, Heat Stress: Hydration. https://www.cdc.gov/niosh/mining/UserFiles/works/products/training/keepingcool/2017-126_hydration.pdf
- CDC/NIOSH, Heat-related illnesses. https://www.cdc.gov/niosh/heat-stress/about/illnesses.html
- LMNT sodium: drinklmnt.com (from the Oct 8, 2026 spec check).
Fire Salt is not intended to diagnose, treat, cure, or prevent any disease.
