Hand heaters - Grzejki (10pair) - G01
- Hands heaters. 10 pairs. Stable source of heat.
GRZEJKI Hand Warmers (10 pairs)
Disposable body warmers | Iron oxidation reaction | Up to 10 hours of heat
GRZEJKI are disposable hand warmers that come in handy for any outdoor activity on a cold day - a walk, a shift working outside, a day on the slopes, or a few hours fishing. Take a sachet out of its packaging, and after a moment it starts giving off warmth that lasts for hours.
How they work
The warmers rely on an oxidation reaction in powdered iron, which kicks in once the contents meet air. Heat builds up gradually and stays fairly steady for the whole time the sachet is active, without sharp spikes. It's a long-established, low-tech approach - no batteries, no charging, nothing to set up.
Once spent, a warmer can go straight into general household waste. Its contents are non-toxic and non-flammable, so there's no need to treat it as special waste.
How to use
Take the sachet out of its foil packaging and give it a light shake to help the reaction along. The warmer activates on contact with air and starts giving off a pleasant warmth within a short while, which then holds for the next several hours.
Key features
Steady heat output over a long stretch of time.
Iron oxidation - no batteries, no charging.
Non-toxic, non-flammable, goes in general waste.
Enough for plenty of trips outdoors.
Technical data
| Parameter | Value |
|---|---|
| Product code | G01 |
| Product name | GRZEJKI hand warmers |
| Pack contents | 10 pairs |
| Active time | approx. 10 hours |
| Maximum temperature | 68°C |
| Average temperature | 55°C |
| Sachet size | 95 x 55 mm |
| Ingredients | Iron powder, vermiculite, water, activated carbon, salt |
Safety information
Use the warmers only for their intended purpose. Extended skin contact, especially combined with poor blood circulation, can lead to low-temperature burns. Stop using a warmer right away if you notice redness, itching, or a burning sensation on the skin. Take extra care when using it with children or people with limited mobility or reduced sensation, and don't use it while sleeping.
- Outdoor activities on cold days - walking, fishing, skiing
- Working outside in low temperatures
- Extra warmth in pockets, gloves, or boots
Frequently asked questions
How long do GRZEJKI hand warmers stay warm?
A single sachet gives off heat for about 10 hours, reaching an average temperature of around 55°C and a maximum of up to 68°C.
How do you activate a warmer?
Just take the sachet out of its foil packaging and shake it lightly - the reaction starts once it's exposed to air.
What should I do with a used warmer?
A spent sachet can go straight into general household waste - its contents are non-toxic and non-flammable.
Are these warmers safe for children?
They call for extra caution around children, and for children under 3 there's a choking risk from the packaging - the product is not a toy.




