Invisalign: How to Eat when Can't Brush Right Away?

Ideally, one would brush after every meal, but not all people can.  The invisalign aligners can act as reservoirs and trap food and acids that would normally be washed away from saliva.  If one brushes and flosses well, morning and night, then things are likely going to be fine.  It takes roughly 8 hours to demineralize, so it should work out ok.

You should remove the aligners to eat and to
brush your teeth. If the aligners are not removed while eating it is suggested
that you brush your teeth and rinse the aligners immediately after eating.

Ideally, you want to brush and floss each time after you eat before you insert your aligners.  Realistically, that can't always happen.  Either rinsing your mouth with warm water or chewing sugarless gum for 20 minutes after a meal will help remove food particles and move them and the bacteria off your teeth.  If you need to reinsert your aligners after that, just brush and floss as soon as you can and make sure to clean your aligners as they probably picked up some of the particles from your last meal.

I understand that it is not always convenient - or even possible- to brush right after eating. I recommend that patients rinse thoroughly with warm water to remove any large food particles, put their aligners back in, and then brush as soon as possible. If even rinsing cannot be done, it is OK to leave the aligners out for an hour or two, on occasion, until brushing and flossing can be done conveniently.I hope this is helpful!

You are very concerned about your teeth and brushing after eating while wearing Invisalign.  Just the fact that you brush and FLOSS morning and night will keep your teeth pretty much placque free!  You have no access to running water at your job sites so i would bring along floss and a small bottle of mouth wash.  That would do the trick after eating.  Just continue your hygiene habits and your concern and care of your teeth and you and invisalign should be just fine!