We have received this lovely post from Rupert Brown of Brown’s Bushcraft who tells us the story of The Brown Filter Bags:
My name is Rupert Brown founder and owner of Brown’s Bushcraft based in the South West of France. In addition to teaching bushcraft I am also the creator of The Brown filter bag. Along with many bushcrafters, I used Millbank bags for coarse water filtration and recommended these to students on my courses. The Millbank bag was used by the British military worldwide since the 1940’s. It was issued to every soldier along with chlorine tablets to provide a simple and effective means of treating dirty water. Millbank bags used to be readily available from army surplus stores. But when the army stopped using Millbank bags some years ago, they became more and more difficult to come by.