Storage of bulk products in an isolated environment sometimes forces us to buy special boxes or containers.
Presented a clever ideas, however, is both a way of saving this cost model for the reuse of empty plastic bottles.
It only takes ordinary household envelopes and cut-throats (with caps) of PVC
Depending on the required volume is selected, and the size of the envelope, which is passed through the inside of the neck of the bottle cut in the manner shown, and then the cap is tightened. The bag is filled prior to this operation, while it may be emptied through the spout, which will act as a dispenser.
The ideas is suitable for storage of all bulk products and even liquids (especially sauces), in which case you should be careful with the temperature, thickness and strength of plastic bags. This is a convenient method for freezing liquids.