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!!

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

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

Product ID: 768580

Details

Brand
HotHands
Included Components
Hot Hands Body
Recommended Uses For Product
Camping
Reusability
Single Use
Size
40 Pack

⏳15-30 min activation

🔥Up to 18 hrs heat

♻️Eco-friendly natural ingredients

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VT43742

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In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
HotHands
Included Components
Hot Hands Body
Recommended Uses For Product
Camping

Description

🔥 Stay Warm, Stay Winning — Never Miss a Moment in the Cold!

ECO CONSCIOUS COMFORT - Crafted from natural, non-toxic materials like iron powder and activated charcoal, safe for you and the planet.
COMPACT TRAVEL READY - Slim, TSA-friendly packets fit effortlessly in pockets, backpacks, or emergency kits—warmth on the go.
INSTANT HEAT ACTIVATION - Simply open and expose to air; feel the warmth build within 15-30 minutes—no batteries, no fuss.
TRUSTED BY PROS ADVENTURERS - Join thousands of outdoor enthusiasts and professionals who rely on HotHands for unbeatable cold-weather comfort.
ENDLESS WARMTH NO RECHARGE NEEDED - Enjoy up to 18 hours of consistent, soothing heat—perfect for all-day outdoor adventures or long shifts in the cold.

HotHands Body & Hand Super Warmers are single-use, air-activated heat packs delivering up to 18 hours of natural, odorless warmth. Made in the USA with eco-friendly ingredients, these compact warmers activate within 15-30 minutes and reach temperatures up to 160°F, providing safe, reliable heat for outdoor activities, work, or emergencies. Trusted globally by athletes and outdoor pros, they’re the ultimate cold-weather essential for millennial professionals who demand convenience and performance.

Specifications

ASIN	B0007ZF4Q8
Best Sellers Rank	#1,169 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #9 in Camping Hand Warmers
Brand	HotHands
Brand Name	HotHands
Customer Reviews	4.8 out of 5 stars 18,519 Reviews
EU Spare Part Availability Duration	18 Hours
Global Trade Identification Number	00094733152433
Included Components	Hot Hands Body & Hand Super Warmer 18 Hours
Item Type Name	Hothands
Item Weight	4.7 Pounds
Manufacturer	HotHands
Manufacturer Part Number	HH-1
Model Number	HH1ED240E-AMZ
Power Source	Disposable Air-Activated
Recommended Uses For Product	Camping
Reusability	Single Use
Size	40 Pack
Target Use Body Part	Hands
UPC	094733152433
Unit Count	40.0 Count
Upper Temperature Rating	160 Degrees Fahrenheit

Reviews

A**R

15.03.2026

T**R

1.02.2026

E**S

14.04.2026

H**N

12.12.2025

B**D

28.01.2026

E**O

16.03.2026

A**R

16.02.2026

L**E

17.12.2025

A**R

19.03.2023

N**G

26.12.2025

A**R

16.12.2025

A**Z

19.04.2026

M**D

27.09.2025

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