oomis- who says we are not permitted to have fresh-cooked food on shabbos? Per actual de’oraisa” if you cook eggs on a hot pavement- it is muttor- because it is not toldo de’esh- obviously miderabbonon it is ossur but you cannot just say that we are not aloowed frsh-cooked food on shabbos.
as per your assertion that we can have lights on shabbos- yes, but we cannot actually LIGHT on shabbos- so i do see an analogy bewteen timers for light and coffee makers.
Lastly- what happens if you put UNCOOKED food in the oven and adjust the timer? As a matter of fact, ‘cholent” is cooked mainly during shabbos, as long as it is fulyl covered, etc.
if my memory serves me right, this was Rabbi Heineman s hetter for new stoves.
i don’t know why a coffeem aker should be prohibited. please bring sources