Directions say if you put the next batter right after the other it will continue to work well. But if you took a little longer just close the top and wait for it to heat up. Well I took no more than 20 seconds to put the next mix and on my fourth waffle it sin it want to work anymore. Well that was upsetting!!!! I waited for more than 10 min to heat up, when it was not heating I ended up turning it off and disconnecting it. Came back after an hour and finished the rest of the waffles ( had enough for three more ) 
I was not impressed  I was really hoping to use love this product. Have it a 3 star because the waffles it made were good