Do they stay warm the full 18 hours (assuming 32 deg F ambient)? If not, how long?

I've used them for years and have always found them to work at least 12+ hours. Primary use has been in my sleeping bag when it's better 30°-40°F. Definitely a good buy in my opinion.

What is the typical expiration date? I bought this in January 2013.

The ones that I bought in April 2013 have an expiration date printed on them of Nov. of 2017. If you look at the description of the 'Hothands 40 Count' here on Amazon, it says "individually sealed in airtight packages to guarantee a shelf life of six years." I don't know personally how true that would be, because I use them all within months of getting them, but you could go to the Hothands website (Hothands.com) and see if they have any more info.. Hope this helps!

Is it 40 pairs as in 80 total or just 40?

It’s 40 individual pads. They are great!!

Body And Hand Super Warmers Long Lasting Safe Natural Odorless

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Description

🔥 Stay Warm, Stay Winning – Heat That Goes the Distance!

COMPACT POWERHOUSE - Lightweight and TSA-approved, these warmers fit effortlessly in your backpack or pocket for on-the-go heat.
READY WHEN YOU ARE - Simply open, expose to air, and in just 15-30 minutes, feel the comforting warmth activate.
ECO CONSCIOUS COMFORT - Crafted with safe, natural ingredients that are environmentally friendly and responsibly sourced.
ENDLESS WARMTH NO COMPROMISE - Experience up to 18 hours of natural, odorless heat that keeps you cozy from dawn till dusk.
TRUSTED BY PROS LOVED BY ALL - Join thousands of outdoor enthusiasts and professionals who rely on HotHands for unbeatable warmth.

HotHands Body & Hand Super Warmers deliver up to 18 hours of safe, natural heat activated by air exposure in 15-30 minutes. Made in the USA with eco-friendly ingredients, these compact, disposable warmers are perfect for outdoor professionals and enthusiasts seeking reliable warmth during cold weather activities. Each pack includes 40 individual warmers trusted worldwide for quality and performance.

Specifications

Asin	B0007ZF4Q8
Battery Description	disposable
Best Sellers Rank	#37,225 in Sporting Goods (See Top 100 in Sporting Goods) #39 in Disposable Hand Warmers
Brand Name	HotHands
Color	orenge
Customer Reviews	4.8 4.8 out of 5 stars (17,969) 4.8 out of 5 stars
Eu Spare Part Availability Duration	18 Hours
Global Trade Identification Number	00094733152433
Included Components	40 Super Warmers
Item Type Name	Hothands
Item Weight	4.7 Pounds
Lower Temperature Rating	57 Degrees Celsius
Manufacturer	HotHands
Manufacturer Part Number	HH-1
Material Type	Polyester
Model Number	HH1ED240E-AMZ
Power Source	Disposable Air-Activated
Recommended Uses For Product	Hiking, Skiing, Hunting, Fishing, Working in Cold Conditions
Reusability	Single Use
Size	40 Pack
Target Use Body Part	Hand
Unit Count	40.0 Count
Upc	094733152433
Upper Temperature Rating	160 Degrees Fahrenheit

Reviews

User

Good Size

Have now used a whole box. See the price has risen by about £10. Only last about 12 hours. Small version lasts the same. Says "open here" on side of individual packs but (unlike on the small ones) there is no nick to easily tear open and scissors are needed to (carefully) open the packs.

19.03.2023

User

Warm and long lasting

lasts a long time and performs well. tested in minus 30 deg celsius.

26.12.2025

User

Yes Get Them!

First time using these and they work great. I was really impressed with the size and how long they stay warm.

16.12.2025

User

19.04.2026

User

Great warmers

These work and last longer. Perfect size and definitely warm up the hands to even get hot.

15.03.2026

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Body & Hand Super Warmers - Long Lasting Safe Natural Odorless Air Activated - Up to 18 Hours of Heat - 40 Individual

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