Question: I tasted some chicken to see if it was too hot before feeding it to my baby. Am I now meaty?
Answer: The Tur (YD 89:1) writes that there are two different reasons for why we have to wait between eating a meat meal and a milky one. Rambam (Maachalos Asuros 9:28) writes that we are concerned that there is some pieces of meat left stuck between one’s teeth. After a few hours, such food isn’t considered to be meat. Rashi (Chullin 105a), however, writes that the taste of the meat could linger on for a few hours.
Thus, if one just bit into a piece of meat for a child but didn’t swallow it, then according to Rashi one wouldn’t have to wait, though according to Rambam one would. Likewise, if one found meat stuck between their teeth after six hours, Rambam wouldn’t require you to remove it, though Rashi would. The Tur writes, however, that we need to follow the stringencies of both positions.
Thus, the Shulchan Aruch (YD 89:1) writes that one who chewed on a piece of meat must wait six hours even if they didn’t swallow anything. The Aruch Hashulchan (YD 89:4) and R’ Akiva Eiger (YD 89:1) write, however, that in this scenario, one may brush their teeth, rinse their mouth and eat milky foods after just one hour (See Pischei Teshuva YD 89:1).
R’ Feivel Cohen (Badei Hashulchan 89:17) writes, though, that one who swallowed any meaty food must likewise wait six hours regardless of whether they chewed it or not (See Igros Moshe YD 2:26).
Neither reason for waiting applies to one who tastes meat without chewing or swallowing. Thus, the Darkei Teshuva (89:22) and Aruch Hashulchan (YD 89:14) write that one wouldn’t need to wait at all before having milk. The Kaf Hachaim (YD 89:4) adds that one must wash their mouth properly, though.
In conclusion, one who tasted some meat does not become meaty providing that they didn’t chew or swallow any of it. They should still rinse their mouth.