3

votes

Chlorpropham aka bud-nip on tubers - dangerous?

Answered on August 19, 2014
Created August 29, 2011 at 8:31 PM

See this cute video: http://www.youtube.com/watch?v=exBEFCiWyW0 . Then see this paper on the residue of chlorpropham after peeling or washing: http://pubs.acs.org/doi/abs/10.1021/jf000018t

Apparently tubers are treated with chlorpropham to prevent them from sprouting. This makes me always want to peel my tubers. On the other hand, http://pmep.cce.cornell.edu/profiles/extoxnet/carbaryl-dicrotophos/chlorpropham-ext.html claims that you need 1000x the concentration found in potatoes to kill 50% of exposed rats.

So what do you think? Should we peel tubers or not? Aren't the vitamins and minerals supposed to be just under the skin?

Finally, I live in the EU and my potatoes do sprout in storage - does that mean they aren't treated in this way? Is there a law against it? Is sprouting a good test of tuber safety?

A64ed062eb5e2c3407122fcf16c5de6b

(715)

on March 11, 2012
at 08:00 AM

I think you need to ask the store :-/. There are lots of shenanigans possible with "organic".

A64ed062eb5e2c3407122fcf16c5de6b

(715)

on March 11, 2012
at 07:59 AM

@Melissa Here in Belgium the tiny ones are specifically meant to be eaten whole, hopefully meaning they're not treated so perhaps they don't spray yours either?

9d43f6873107e17ca4d1a5055aa7a2ad

on March 05, 2012
at 06:46 PM

Maybe the tiny ones aren't sprayed? THat's what I buy.

9d43f6873107e17ca4d1a5055aa7a2ad

on March 05, 2012
at 06:46 PM

Really? Then why do all the potatoes I buy seem to sprout as soon as I buy them? I swear that's one of the reasons I'm pretty LC lately, because I keep having to toss them.

A64ed062eb5e2c3407122fcf16c5de6b

(715)

on January 23, 2012
at 03:13 PM

@Matt, thanks, good (and sad) to know! I always peel my potatoes before cooking nowadays except the tiny ones meant for consuming whole.

B8592e62f9804ddabae73c1103d6bcb9

(1956)

on January 15, 2012
at 06:05 PM

Potatoes are one of the few you should buy organic, even if you buy non-organic everything else.

32f5749fa6cf7adbeb0b0b031ba82b46

(41757)

on January 15, 2012
at 01:55 PM

According to Wikipedia, Chlorpropham is approved in Germany, Austria and Switzerland. I don't think you're necessarily safe in the EU.

A64ed062eb5e2c3407122fcf16c5de6b

(715)

on October 18, 2011
at 06:15 PM

yes but how reliable is that video as a source of facts... I'd be surprised if the entire fruit/veg has the same concentration of chlorpropham...

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6 Answers

1
2d4ff23c8ce7fb00708fa88ceffd4087

(408)

on August 29, 2011
at 09:52 PM

I personally peel them all the time. Chlorpropham or not, most tubers have all their natural toxins in the skin. If they aren't a staple, eating the skin once in a while won't be too much of a problem if they are organic.

0
58e705fc1d922968f5c061ab5a970718

on January 19, 2014
at 12:12 AM

If yours are sprouting, they're safe. If not, buy organic, from a grower who swears they're not treating them, and expect them to sprout within a week. Otherwise, peel them always.

0
4eacee3eac6699a3050af074bc5d90ed

on December 25, 2013
at 12:25 AM

A gardner I know told me that for potatoes it also depends on when they are harvested, if they are harvested while the plant in alive they have more toxins in the skin and they aren't as well as sprouting. Taken from a wilting plant they will probably already have eyes or will sprout very soon.

0
60673730a7b5887faa4434b15384bb7f

on March 05, 2012
at 06:04 PM

My store bought 'organic' yam will not sprout. I paid more for the organic ones only to find they may have been raised and harvested organically, then doused with Chlorpropham afterward? Doesn't that negate the label 'organic'?

A64ed062eb5e2c3407122fcf16c5de6b

(715)

on March 11, 2012
at 08:00 AM

I think you need to ask the store :-/. There are lots of shenanigans possible with "organic".

0
0d976153b99fed1f4531a8599c589bb3

on January 15, 2012
at 05:30 AM

Buying organic is the best option

B8592e62f9804ddabae73c1103d6bcb9

(1956)

on January 15, 2012
at 06:05 PM

Potatoes are one of the few you should buy organic, even if you buy non-organic everything else.

0
96b519df12fc718d2a32812545d61fcb

(0)

on October 18, 2011
at 07:09 AM

HOWEVER the video clearly stated that chlorpropham is absorbed INTO the fruit or veg so peeling will be of little value in avoiding this toxin... unfortunately.

A64ed062eb5e2c3407122fcf16c5de6b

(715)

on October 18, 2011
at 06:15 PM

yes but how reliable is that video as a source of facts... I'd be surprised if the entire fruit/veg has the same concentration of chlorpropham...

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