Hello,
I’ve heard that plastic carboys can allow oxygen into the carboy during wine brewing or aging. Do you have any knowledge regarding this?
Thank you for your help.
Sonia L.
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Dear Sonia,
All the plastic carboys we have seen are perfectly fine for fermenting wine. It’s all about the plastic being used.
In the case of the 5 gallon plastic water bottles, like you see at the grocery store, they are made of food-grade plastic, similar to that used to make milk jugs. Then saran is blown-in to layer the inside as an oxygen barrier.
We sell plastic carboys in various sizes that are made of PET. This is an oxygen-barrier plastic… the same plastic used to make 2 liter soda pop bottles, only these fermenters are much thicker than a 2 liter. It is virtually impossible for oxygen to pass through them.
Happy Wine Making,
Customer Service
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Ed Kraus is a 3rd generation home brewer/winemaker and has been an owner of E. C. Kraus since 1999. He has been helping individuals make better wine and beer for over 25 years.
