# Preventing backwash? **URL:** \ **Category:** Factual Questions\ **Created:** [October 21, 2003, 5:43pm UTC](https://boards.straightdope.com/t/preventing-backwash/208741 "2003-10-21T17:43:04Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![35340](https://avatars.discourse-cdn.com/v4/letter/3/8baadc/32.png) [@35340](https://boards.straightdope.com/u/35340)\ **Post date:** [October 21, 2003, 5:43pm UTC](https://boards.straightdope.com/t/preventing-backwash/208741/1 "2003-10-21T17:43:04Z")
Is there a way to prevent it (aside from NOT DRINKING OUT OF THE JUICE CONTAINER STRAIGHT ON)? Is there a way to prove or disprove if it happens, despite a certain person’s assurance that they _don’t_ backwash, even accidentally, into the juice/milk/soda containers? ---
**Author:** ![Church\_Key\_Kid](https://avatars.discourse-cdn.com/v4/letter/c/f9ae1b/32.png) [@Church\_Key\_Kid](https://boards.straightdope.com/u/Church_Key_Kid)\ **Post date:** [October 21, 2003, 6:15pm UTC](https://boards.straightdope.com/t/preventing-backwash/208741/2 "2003-10-21T18:15:59Z")
According to this site, “backwash” is very minimal: [http://www.panix.com/~iayork/backwash.html](http://www.panix.com/~iayork/backwash.html) ---
**Author:** ![35340](https://avatars.discourse-cdn.com/v4/letter/3/8baadc/32.png) [@35340](https://boards.straightdope.com/u/35340)\ **Post date:** [October 21, 2003, 6:24pm UTC](https://boards.straightdope.com/t/preventing-backwash/208741/3 "2003-10-21T18:24:10Z")
mnmnn… I guess this means if I want no drinking from the carton I have to refrain from my uncivilised habit of nail biting, then. Or have guests over often enough that such … liberties wouldn’t be taken by said party for fear of guests wanting to enjoy the same refreshments. I thank you. ---
**Author:** ![Rabid\_Squirrel](https://avatars.discourse-cdn.com/v4/letter/r/e0b2c6/32.png) [@Rabid\_Squirrel](https://boards.straightdope.com/u/Rabid_Squirrel)\ **Post date:** [October 21, 2003, 8:53pm UTC](https://boards.straightdope.com/t/preventing-backwash/208741/4 "2003-10-21T20:53:56Z")
My Pop has a neat trick where he drinks from a container without letting it touch his lips. Guaranteed to be back-wash free. ---
**Author:** ![Mangetout](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mangetout/32/19_2.png) [@Mangetout](https://boards.straightdope.com/u/Mangetout)\ **Post date:** [October 21, 2003, 10:42pm UTC](https://boards.straightdope.com/t/preventing-backwash/208741/5 "2003-10-21T22:42:10Z")
Here’s a link to a fairly recent discussion on a similar topic: [http://boards.straightdope.com/sdmb/showthread.php?&threadid=215673&highlight=backwash](http://boards.straightdope.com/sdmb/showthread.php?&threadid=215673&highlight=backwash) ---
**Author:** ![35340](https://avatars.discourse-cdn.com/v4/letter/3/8baadc/32.png) [@35340](https://boards.straightdope.com/u/35340)\ **Post date:** [October 23, 2003, 3:08pm UTC](https://boards.straightdope.com/t/preventing-backwash/208741/6 "2003-10-23T15:08:46Z")
> [@](#): > > \*Originally posted by Mangetout \* > \*\*Here’s a link to a fairly recent discussion on a similar topic: > [http://boards.straightdope.com/sdmb/showthread.php?&threadid=215673&highlight=backwash](http://boards.straightdope.com/sdmb/showthread.php?&threadid=215673&highlight=backwash) \*\* Thanks. I did a search but got 0 results on that keyword, hrm? ---
**Author:** ![Mangetout](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mangetout/32/19_2.png) [@Mangetout](https://boards.straightdope.com/u/Mangetout)\ **Post date:** [October 23, 2003, 3:47pm UTC](https://boards.straightdope.com/t/preventing-backwash/208741/7 "2003-10-23T15:47:19Z")
Did you set the date parameter far enough back? (the default is ‘in the last day’)