Trek’n Eat is the outdoor food brand of the Katadyn Group, known for its water filters. The meals are produced in Germany without the use of unpleasant preservatives, artificial colorings, or flavour enhancers.Trek’n Eat is the outdoor food brand of the Katadyn Group, known for its water filters. The meals are produced in Germany without the use of unpleasant preservatives, artificial colorings, or flavour enhancers.