SteriPEN Journey 2011

At just 124g, the SteriPEN Journey is small enough to slip into a jacket pocket when hiking or travelling. It’s an incredibly quick, easy and cost-effective means of making water safe to drink. Unlike other water purifiers that require pumping water and chemicals, the SteriPEN works by flooding the water with ultraviolet light, which in seconds disrupts the DNA function of microbes so they can’t make you ill. The small lamp in this unit can treat up to 1 litre of water in a container at a time (you can’t just dip it in a lake!). Just fit a couple of batteries, place the lamp in the container and switch it on. The unit has a timer that automatically turns off the lamp as soon as the water is safe to drink. But there’s no filter, so this is best in situations where the water looks relatively clean. The unit can only treat up to 1 litre at a time, which is probably not a problem for most users, but groups may prefer other options. The mouth of your container could remain infected as the SteriPEN only treats the water inside it.

Filter type ultra-violet light
Replacement complete unit £110
Effectiveness bacteria, parasites, viruses
Flow rate 0.5 litre per minute
Service life 9463 litres (lamp life)
Packed size 19x5cm
Running costs based on lamp replacement 1 litre = 1.16p up to 9463 litres; 1 litre = 1.16 over 9463 litres
Weight 124g
Made in USA
Number of stores in the UK 100
Stockist details – tel. (02392) 528711;

The SteriPEN Journey is a very useful piece of kit for most walkers and travellers who just need to prepare small amounts of relatively clean water for drinking.

Review by Graham Thompson
First published in Trail magazine June 2011