Product : You recharge this electronic hand warmer via USB. You can expect to get about an hour and a half of real warmth from the package before the temperature drops too much to make a difference for your digits.īuy Now 4. The temperature of these hand warmers declined precipitously during two hours in the freezer. That isn’t quite right, at least according to our test. Verdict : Grabber claims its regular-size hand warmers last more than seven hours. At 2 by 3.5 inches, they fit perfectly in the palm of your ski gloves. Tear open the plastic package, vigorously shake the little bags, and wait less than five minutes for them to warm up. Product : Grabbers, ubiquitous at ski areas around the country, are the classic air-activated hand warmers. Grabber Hand Warmers (From $1.50 Per Pair) (Joe Jackson) Every 30 minutes for two hours, we used a meat thermometer to take the temperature of the hand warmer. We then left the gloves-stuffed with the hand warmer and a wool sock for insulation-in a 30-degree freezer. After 15 minutes, we measured the temperature inside the glove.

We activated the hand warmers, and then stuffed each into a basic leather ski glove. The first part of the test was performed indoors. That’s a pretty broad range, and we wanted to find out which of these five popular hand warmers was the warmest and most useful for playing in the mountains. The three most commons types you’ll see on the slopes are either air-activated, use a supersaturated solution, or are battery-powered.Īll three can last anywhere from one to 10 hours. Hand warmers-those small, usually disposable packets that provide on-demand heat-come in five main varieties, including some that run on charcoal and lighter fuel.

Where to buy grabber hand warmers