Zip-Zag Bag Large 250 g Retail 50 Or 150 Pack
Sale priceFrom $19.95
Zip-Zag FAQ's
A supermarket zip-lock is a single layer of polyethylene, which odour passes straight through. Zip-Zag bags are a multi-layer barrier film with a press seal, so they hold odour and moisture in the way a heat-sealed barrier bag does while still opening and closing repeatedly. That combination is what the product exists for.
Clear for anything you want to see into or store short-term; black for anything being kept for weeks or months. The black film blocks light, and light is one of the main causes of degradation in stored plant material. The black range covers 28g, 250g, 500g and 1kg, all in 10 or 25 packs.
Match the bag to what is going in it rather than buying one size for everything. The clear range runs from 28g sandwich size through 250g Large to 1kg XL; the black range covers 28g, 250g, 500g and 1kg. Filling a bag properly matters — a part-full bag holds a lot of air, and air is what degrades contents.
Yes, that is the main advantage over a heat-sealed bag. The press seal opens and closes repeatedly. The practical limit is contamination and wear on the seal rather than a fixed number of uses — if the seal no longer closes cleanly along its full length, or the bag has held something you would not want transferring, retire it.
If you are storing for more than a few weeks, yes. A sealed barrier bag holds whatever moisture level went in with the contents — it does not correct it. Two-way humidity control packs absorb or release moisture to hold a set level, which is what stops material either drying out or sitting damp enough to grow mould.