Are my eyes burning from eating red chillies?

  • Thread starter Thread starter Saladsamurai
  • Start date Start date
  • Tags Tags
    Eyes
Click For Summary

Discussion Overview

The discussion revolves around the experience of eye irritation after consuming red chillies, particularly in relation to contact lens use. Participants explore potential causes for the burning sensation in the eyes, including the persistence of capsaicin on the skin and possible airborne irritants. The conversation includes personal anecdotes and suggestions for mitigating the issue.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant hypothesizes that residual chile oils may remain on the hands despite thorough washing, similar to garlic.
  • Another participant notes the surprising persistence of capsaicin on the skin, sharing their own experience of burning after multiple hand washes.
  • A suggestion is made that fumes from the peppers could be irritating the eyes, akin to the effects of onion fumes.
  • Some participants propose that washing hands with hot water followed by cold water might help, while others argue that washing can prolong the problem.
  • There is a discussion about using fat-based substances like olive oil, butter, or yogurt to remove capsaicin from the skin, as it is fat-soluble.
  • One participant shares their intention to use gloves while handling chillies to prevent the issue altogether.
  • References are made to similar sensations caused by DEET-based mosquito repellents, with some participants discussing regulations around DEET in Canada.

Areas of Agreement / Disagreement

Participants express a range of experiences and suggestions, but there is no consensus on the exact cause of the eye irritation or the most effective method to prevent it. Multiple competing views and hypotheses remain unresolved.

Contextual Notes

Some participants mention the limitations of hand washing techniques and the potential for capsaicin to hide in skin pores, but these points are not fully explored or resolved.

Saladsamurai
Messages
3,009
Reaction score
7
So recently I have been cooking with red chillies for the first time in my life. I also wear contact lenses. Within a day or two of my chili binge, I have noticed that when I put my contacts in in the morning, my eyes burn like hell. I know that it is related to the chillies. The thing is, I am kind of a clean freak; so in the time interval between eating dinner and putting my contacts in in the morning, I will have scrubbed my hands at least 3 times. I am hypothesizing that one of two things (or both) is happening here:

1) No matter how much I scrub, some chile oils remain, kind like how garlic stays on the fingers after cutting, no matter how much you scrub (except I can't smell the chillies).

2) I have been eating at least one chili a day for the last week or two and hence I am "perspiring" some of the chemicals from the chillies.

What do you guys think? Any other possibilities? I am sure it has to do with the chillies.
 
Biology news on Phys.org
It is surprising how long capsaicine stick to the skin. And washing hands doesn't help much. I ate a small, hot pepper few hours ago, since then I washed my hands three or four times - and if I put my finger in my mouth it still burns.

I am not surprised by your experience at all.
 
Borek said:
It is surprising how long capsaicine stick to the skin. And washing hands doesn't help much. I ate a small, hot pepper few hours ago, since then I washed my hands three or four times - and if I put my finger in my mouth it still burns.

I am not surprised by your experience at all.

Take care when you use the toilet!:cry:
 
:smile:

:rolleyes:There's another possibility. Fumes from the peppers might be infiltrating your eyes through the air, the same way that those of an onion can.
 
Dadface said:
Take care when you use the toilet!:cry:

You don't have to warn me
 
Try washing your hands in very (tolerably) hot water followed directly by cold water.
 
Washing your hands not only doesn't help but can actually extend the problem. In essence, the oils would have gone away quicker had you not been running water over the skin.

The best thing to do is wear gloves in the first place.
 
I have to check if rubbing olive oil and washing hands after that won't help, after all, capsaicin is much better soluble in fat.
 
same experience. detergent doesn't seem to totally help, either. maybe it hides in the pores or something.
 
  • #10
Borek said:
I have to check if rubbing olive oil and washing hands after that won't help, after all, capsaicin is much better soluble in fat.

That would be an interesting experiment. But I will need to not use my eyes as the testing ground :bugeye:

I think I will invest in some vinyl gloves for use while chopping and handling the chillies.
 
  • #11
Use butter or yogurt or olive oil to get the capsacin compounds off the skin, since the compounds are fat soluble. Then wash with hand soap or detergent.

Personally, it doesn't bother me, but then I don't were contacts.
 
  • #12
Sooner or later you have to pee...

Interestingly, if you have ever used DEET based mosquito repellent, it gives similar effects (and I am not talking about eyes :wink:).
 
  • #13
Borek said:
Interestingly, if you have ever used DEET based mosquito repellent, it gives similar effects (and I am not talking about eyes :wink:).

Deet is illegal in Canada at more than 30% of a product, and can't be used on children under 12 at more than 10% concentration. I think that those were compromise numbers, because there was a large faction that wanted to ban it entirely.
 
  • #14
One that I used was 55% DEET + polypropylene glycol + isopropanol. Could be it was not DEET that produced the burning sensation. Mild sensation, but hard to miss.
 
  • #15
When I was a chemist in a pulp mill, I washed my hands before AND after using the bathroom. You don't need to get surprised more than once to learn that lesson.
 

Similar threads

Replies
2
Views
1K
  • · Replies 17 ·
Replies
17
Views
3K
  • · Replies 9 ·
Replies
9
Views
2K
Replies
8
Views
5K
  • · Replies 10 ·
Replies
10
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 2 ·
Replies
2
Views
3K
Replies
5
Views
3K
Replies
15
Views
2K