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!!

Hothands Body And Hand Warmers Long Lasting Safe Natural Odorless

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$146.90

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Description

🔥 Stay warm, stay unstoppable — your secret weapon against the cold!

PURE SAFE COMFORT - Crafted with natural, odorless ingredients that are safe and eco-friendly, so you stay warm without compromise.
ENDLESS WARMTH ON DEMAND - Experience up to 18 hours of consistent, soothing heat—perfect for all-day outdoor adventures or chilly commutes.
TRAVEL READY TSA APPROVED - Compact, disposable design cleared for air travel—never miss a moment of warmth wherever you go.
VERSATILE WARMTH FOR EVERY ACTIVITY - Ideal for tailgating, hiking, camping, or simply braving the cold on your daily walk—comfort that moves with you.
MADE IN THE USA WITH QUALITY ASSURANCE - Trusted craftsmanship combining domestic and imported materials ensures reliable performance every time.

HotHands Body & Hand Warmers deliver up to 18 hours of safe, natural, and odorless heat in a compact, TSA-approved disposable pack. Perfect for outdoor enthusiasts and professionals alike, these warmers activate with air and provide reliable warmth for hands and body during cold weather activities. Made in the USA with quality materials, each pack contains 40 individual warmers designed for single use and easy disposal.

Specifications

ASIN	B0007ZF4Q8
Best Sellers Rank	133,664 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 52 in Disposable Hand Warmers
Brand Name	HotHands
Colour	orenge
Customer Reviews	4.8 4.8 out of 5 stars (17,892)
EU Spare Part Availability Duration	18 Hours
Global Trade Identification Number	00094733152433
Included Components	40 Super Warmers
Item Type Name	Hothands
Item Weight	2.13 kg
Lower Temperature Rating	57 Degrees Celsius
Manufacturer	Kobayashi
Material Type	iron
Product Warranty	Limited warranty
Recommended Uses For Product	Camping
Reusability	Single Use
Size	40 Pack
UPC	094733152433
Unit Count	40.0 Count
Upper Temperature Rating	160 Degrees Fahrenheit

Reviews

A**R

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

N**G

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

26.12.2025

A**R

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

16.12.2025

A**R

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

15.03.2026

M**D

Bereits zum 4 Mal nachgefüllt. Sehr praktisch und in allen Situationen eingesetzt. Immer ein warmer Begleiter, wenn es irgendwo zwickt und wehtut.

27.09.2025

S**T

Good product long warming

19.05.2025

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The product exactly matches the description. Very satisfied with my purchase.

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1 month ago

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Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

$146.90

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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

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Description

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Reviews

Common Questions