This is accomplished through an extremely fast oxidation process. Ingredients include: iron powder, water, salt, activated charcoal and vermiculite. HotHands® has perfected the process so that our warmers, depending on the individual product, produce heat anywhere from 100°F to 180°F for duration of 1 to 20+ hours.
Although all HotHands® warmers are safe to handle and use, some people with sensitive skin (especially young children, Diabetics and the elderly) may have reduced sensation to heat.
Disposable warming pads using carbon, charcoal, and iron compounds, Hot Hands, Little Hotties, etc. These air-activated body-warming pads are not regulated as hazardous materials for transportation and may be carried in carry-on or checked baggage.
Our HotHands® family of air activated warmers all contain a mixture of natural ingredients that when exposed to air react together to produce heat. This is accomplished through an extremely fast oxidation process.
Our warmers have a shelf life of 3-4 years. The exact expiration date is printed on the box. Are your warmers TSA approved? Absolutely, according to our (SDS) Grabber - Safety Data Sheet and HotHands - Safety Data Sheet.
HotHands Hand Warmers are inexpensive, effective hand warmers that are small enough for in-glove use. These are the heaters you want if you need your hands outside your pockets in the cold—for skiing or yard work or the like. (Though you could certainly stash them in your pockets too.)
To use, place the handwarmers in the microwave for 30 seconds to a minute (or on top of a radiator for 30 minutes). Then place one in each of your child's coat pocket to keep their hands warm.
On the other hand, if you put the hand warmers in your shoes (even if you can stand the thickness) they may not warm enough to make a difference, because they're not getting the intended amount of oxygen...
Do not put directly on top of skin - the Hot Hands does get VERY HOT and will blister the skin. Learned the hard way. Soft pouch is about 3x2 and 1/4 in thick. Use with caution.
HotHands – Kobayashi Americas. Hothands® Hand Warmers are single use, air-activated heat packs that provide everyday warmth and are ideal for keeping your body warm when the temperature gets cold.
Most hand warmers are not designed to get wet, as moisture can interfere with the chemical reaction that generates heat. However, some hand warmers are designed to be water-resistant and can withstand a certain level of moisture.
Most hand warmers are not recyclable due to the chemicals they contain. Therefore, the best action is to dispose of them in the trash. However, avoid doing so while they are still hot. Let Them Cool: Always allow hand warmers to cool down completely.
In the US, disposable hand warmers are permitted by the TSA. To find out whether an item is permitted or prohibited, go to the TSA Prohibited Items page, then enter "hand warmers" in the box labeled "When I Fly, Can I Bring My...?"
You can reuse hand warmers throughout the 12 hour period after activating them, but can't be reactivated after opening the pack. Toe warmers last up to 7 hours and body warmers last up to 12 hours.
Rice: Regular uncooked white rice works best. You can also use flaxseed, dried cherry pits or lava sand. Thread: Use 100% cotton thread as it is a natural fiber and very durable.
To avoid the proverbial hot seat by, er, warming up your balls, don't place them in the same pocket as the hand warmer. If you make a stroke with the ball after it's been warmed, the penalty could be disqualification under Rule 4.2a. (“Could,” because whether the heating was deliberate may be debatable.)
Hand Warmers for Electronics and Water Filters
While foot warmers do the best job of keeping feet warm, since they have an adhesive that keeps them in place on your sock, hand warmers can also be used at the bottom of a sleeping bag to warm cold feet while camping.
In case of an emergency, you can keep a few hand warmers in your car and shake them whenever you need to activate them. You can buy a large pack of hand warmers for a decent price on Amazon, so you can keep a few at home, a few in your car or even a couple in a backpack or purse just in case.
Can Hand Warmers Catch Fire? One of the most crucial safety concerns is whether hand warmers can catch fire. While they are generally safe, improper use can lead to overheating or fire hazards. It's essential to follow the instructions provided by the manufacturer to ensure safe usage.
IRON POWDER
Oxygen in the air reacts with this powder to yield iron oxide—rust—and heat. These hotties can reach up to 163 degrees Fahrenheit; military-grade warmers (for heating MREs) can get to upwards of 200 degrees. Manufacturers produce iron powder by either crushing iron or spraying a molten stream with water.
Different brands might have varied guidelines on how to activate and use the warmers. Avoid Direct Skin Contact for Extended Periods: While hand warmers are designed to be safe, prolonged contact with the skin can cause burns or rashes.