Question: how long do i have to wait to eat after using crest white strips?
Answer: After removing the strips you need to wait 1/2 hour before eating or drinking staining foods and beverages because, basically, the “pores” of the enamel are open and will absorb stains much more readily. During the 1/2 hour delay, our saliva bathes our teeth and the minerals in the saliva seal off the “pores”.