1- prepare and fill the bag as described in the manual,
2 prior to the open part of the bag in the vacuum nozzle of the machine must FOLD the lower part of the bag onto itself so as to make a crease that will go to the food !!
3- putting the folded part under the cap and run the machine. If the vacuum is wrong, again and again fold
4- smooth the welded part of the bag as possible just before welding. If you have large folds, increasing the welding power to ensure that the bag under seal.
For me, it works is every time, even with normal freezer bags.
