I've stored wine for a year or two in 5lt plastic bottles with no problems at all.
The study found that in the short-term, wine stored in glass and plastic tasted similar, but the wine stored in the plastic bottles started to deteriorate after about eight months and is best consumed within 12 months of bottling.
The polyethylene terephthalate (PET) bottles are permeable to air, which oxidises the wine. Wine bottlers can limit the amount of oxygen that enters the bottle with an oxygen scavenger - sachets containing material including fine iron powder covered with sea salt - but these are effective for only about 12 months.
"Oxygen permeates the wine and it becomes oxidised," Portavin managing director Ian Matthews said
Homemade wine is often bottled in a "reductive" state (the opposite of oxidised) in which case there may be short term benefit from using plastic bottles, but generally if you want to age your wine don't use plastic bottles.
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