🍷 Bag-in-box
A plastic bag with a tap inside a cardboard box.
Bag-in-box is wine packaging made of a flexible, collapsible bag with a valve, placed inside a rigid outer box. The bag is made of synthetic films, and a tap is attached for pouring. The most common sizes are 3 and 5 litres.
The main advantage is protection from air. The bags are filled under vacuum and topped up with nitrogen, and as wine is poured out through the valve, the bag collapses, so oxygen does not reach what is left. Modern designs with an oxygen barrier in the bag, spout and closure keep opened wine fresh for two to three weeks. The package is light and holds a larger volume, which can be used over a period of time.
Bag-in-box is one of the alternatives to the glass bottle, like the can. It is most often used for everyday table wine. Its main drawback is a shorter shelf life than in glass bottles: in the 1970s wine in early bags already tasted oxidised three months after packing.
How it connects to Wine
🍷 Bag-in-box ← packed in ← 🍷 Wine
Links
- Next step
- 🍷 Oxidation of wine
- What is packed
- 🍷 Wine
- Part of
- 🍾 Wine containers, glassware and serving
Frequently asked questions
What is bag-in-box?
A plastic bag with a tap inside a cardboard box, used to pack wine.
Why does wine keep longer in it?
The bag collapses as wine is poured, so air does not get in.
What is the main drawback of bag-in-box?
Wine keeps for a shorter time in it than in a glass bottle.
Similar
🍷 Concrete vat · 🍷 Wooden vat · 🍷 Canned wine · 🍷 Demijohn · 🍷 Wine in carton · 🍷 Stainless steel tank
Sources
- Wikidata Q799810
- University of Florida IFAS Extension. Packaging Implications for Wine and Alcoholic Beverages (FS458)