An analysis carried out by the Institute for Applied Ecology in Freiburg, Germany, showed that the disposable HiPP jar is the more eco-friendly solution compared to reusable systems. Reusable packaging is only advantageous – for example, in the beverage industry – when standardised glass jars are used. If this is possible, the transport routes can be kept short. For the time being, it is impossible to devise an ecologically beneficial system of reusable packaging that is limited to re-using baby food jars alone. Based on the test results, HiPP has expedited the ecological optimisation of the current system of disposable jars. The glass weight, for example, has been reduced by some 15 % over the past eight years.