Mi Yodeya is a question and answer site for those who base their lives on Jewish law and tradition and anyone interested in learning more. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Pampers make diapers which have a wetness indicator. Initially it is a yellow stripe when dry; when wet it turns blue. I am wondering whether this would be considered tzoveha.


share|improve this question
Seems like that dying is incidental to its use, and not the purpose of the diaper... unless you plan to make pediatric urinary art. – Charles Koppelman Sep 16 '13 at 2:16
i had this question yesterday as well! – bondonk Sep 16 '13 at 19:37

The Star-K's Rabbi Frankel discusses it.

Rav Heinemann shlit”a suggests that there is further reason to be lenient in the case of the diaper with a color-changing stripe. Rav Moshe Feinstein zt”l states that, on Shabbos, one is allowed to wear photo-gray glasses which darken when exposed to sulight, even though walking outside will cause the lens to change color. ... Similarly, any color change which results from diapering a baby would not be classified as tvziah, as this is not the derech of the melacha. If so, it could be argued that even a person who desires the color change feature would be permitted to use the diaper on Shabbos.

Nevertheless, Rav Heinemann paskens that someone should preferably not use such a diaper on Shabbos if it was bought particularly because of its color changing feature. He may, however, use such a diaper if this particular feature is insignificant to him.

share|improve this answer
Interesting. In Kashrus Kurrents - Nov 2009 the Star-K says it should not be used. Did they change their mind? – Gershon Gold Sep 16 '13 at 15:14
Yes they did change their mind per Matzav.com. – Gershon Gold Sep 16 '13 at 15:19

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.