Can I Use a Plastic Water Jug As A Secondary?

Here’s a very interesting question I received via my blog this week:

“Can I use the plastic 5-gallon carboys that I have water delivered in for starting the secondary fermentation? What I would like to do is start some strawberry and blueberry wine when the fruits are in season – which is when we are here in Maine.

I would like to get the secondary fermentation started here and then take the carboys home where I can finish the process and bottle it. My concern is if these water bottles will leave a taste in the wine.”

Here’s how I answered:

Great question!

As long as the water bottle is made of PET then you should be good to go.

I actually own a plastic carboy and there’s no issue with a plastic taste being transferred. I wrote an article about it on my blog called “Winemaking Designer Carboys” if you’re interested.

I’m curious what you think about using plastic vs. glass carboys and so reply to this blog post and let me know!

Winemaking Designer Carboys?

I was recently reading a monthly newsletter I get from one of the local wine making supply shops I frequent and came across a new cool “toy” I HAD to get and try out – a plastic clear carboy.

These carboys are made by “Better-Bottle” (www.Better-Bottle.com) and seem to have an OEM relationship with RJ Spagnols.

This new carboy caught my attention for a number of reasons:

1) It’s made up of the same material (PET) that is used in regular water cooler bottles so I knew my wine wouldn’t get a plastic taste to it. They are also almost “unbreakable” (mind you so was the Titanic) and can be cleaned with hot water.

PET = polyethylene terephthalate

2) At 1.5 lbs it is about 1/10th the weight of the equivalent glass carboy so wouldn’t hurt the back as much when I move a full carboy around.

3) It is clear (unlike the current opaque plastic carboys – which stain from what I hear) so you can see how well your wine is clearing.

4) Cost wise it is about the same as a glass carboy ($24.99)

5) The wider neck makes it even easier to clean the a a regular carboy.

Note: Due to the increased size of the neck you’ll have to use a size 10 bung for the airlock.

I’ve quizzed wine making shop owners about what they see as the main drawbacks to using this new plastic carboy is that it tends to scratch on the inside when using a carboy brush. Apart from that it appears to be pretty equivalent to a glass carboy.

I haven’t used it yet so would be interested in hearing from you if you have one and your experiences with it.

If you have used it before please let me know via the “comments” option below!

- Scott