After seeing an entertaining short broadcast on Arte about this and similar tubes presses, I wanted to bring these practical aids for daily living in my house, but I suggest you let it alone: plastic tubes, eg for toothpaste are too rigid, simply rotate again on. Aluminum tubes, such as for tomato paste could be therefore not be empty. in the groove of the tube presses the tube fold is not permanent because it slips out immediately. We shall return to England was more expensive than this stupid product, so I'm at the end of which is richer by one experience.
