I'll be damned- TCA and Saran wrap

Jun 18, 2005 10 Replies

So Wednesday night when I double-decanted my last bottle of '90 Haut-Corbin I realized it was horribly corked. I went and opened an '83 L-Barton and set it aside. But someone (Jim or Betsy?) remembered I had talked about the plastic wrap as a possible TCA absorbent method mentioned on the web (was it Jamie Goode?). So I stuck a wad of plastic wrap in the neck and set aside.



I had tried this once before to no avail, but had not given it the suggested 48 hours. This time I did, and after 49 hours just tried the '90 Haut-Corbin. I'm not getting any TCA. I'm also not getting any "plasticky" odors that another tester noted. On the downside, the nose is actually fairly neutral -just some warm (almost hot) fruit. On the palate this is a decent if unexciting and very mature wine. I went through several bottles of this QPR St. Emilion, and this is my least favorite. Fruit seems more tired. Of course, that is probably to be expected from a 15 year old wine from a lesser chateau that has been opened something like 51 hours.



More evidence is required, but I'll certainly try this method again. A younger more robust wine might handle the 48 hours a bit better. '



Just a data point.



Dale Have you seen this?

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Myron

in article snipped-for-privacy@4ax.com, Rex at snipped-for-privacy@myway.com wrote on 6/17/05 8:35 PM:

I'm pretty sure the product in that reference is the same one that started the discussion here, a while ago, that resulted in the alternative method of a ball of saran wrap or similar plastic. I think the progression had to do with the filter material in the device having properties similar to plastic wrap. Haven't tried it myself, but it appears to be promising.

I'm keeping the site reference though...... and thanks for it. Stranger things have happened, but I hope the inventor has engineered something superior, for his sake.

PVC clingfilm gives a nasty plasticy taste. I presume you used polythene.

Steve, In the US now, even Saran™ Wrap (the original clingfilm) is no longer PVC, but poly(e)th(yl)ene doped with polysiobutylene to make it clingy. AFAIK, no one now markets PVC clingwrap in the US.

Mark Lipton

Mark, that would be PVDC then?

Mike

Mike Tommasi, Six Fours, France email link

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They do in the UK. I found out by bitter (literally) experience.

I would think that these markets are fully globalized, I cannot imagine the UK making its own home grown terroir cling film... the stuff is called polyvynilydene chloride, which is not quite PVC... Mark?

Mike Tommasi, Six Fours, France email link

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You're correct, Mike. PVDC (polyvinylidene chloride) is what's used for cling wrap -- not PVC (polyvinyl chloride), but again AFAIK it's no longer used commercially in the US because of its higher cost. Of course, the US != the world, so it wouldn't surprise me to learn that it is used in many other countries.

Mark Lipton

If it says on the packet "made from Polyvinyl Chloride".

The culprit for imparting the bad taste will probably be the plasticiser. Phthalate plasticisers are not used in the UK for PVC food wrap. Don't know what are used.

Thank you Mark for saving me the trouble of pointing that out.

The cling film I used was manufactured and sold in the the UK, and claims confomrance with UK and EU regulations. I see little point in aiming for a global cling film market. I imagine it was difficult enough getting a consensus in the EU.

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