my son also had the same problem like ur kid. He just don't know how to swallow. I tried many times but still failed. Later, I used the picifier, that work!! Just after u put the 糊仔 into his mouth, give to him the picifier to suck, then he swallow!! after 1-2 days training, he now can finish whole bowl of 糊仔 la, and started congee for a week already