Does the model with the insulated stainless carafe have a heater on the bottom?

We just received this unit. The 3400 with insulated carafe indeed has a warming plate. I have no clue why. After all the thermal carafe is supposed to keep the coffee hot so it seems odd. And given how many complaints I see in these reviews about the warming plate rusting and breaking etc on the model 3200 (glass carafes) I'm more than a little concerned. I didnt expect a warming plate. Our old Cuisinart (975TC) thermal carafe kept the coffee hot for several hours and had no warming plate. From what I can tell so far, the plate seems quite hot when the unit first turns off after brewing and I guess shuts off soon after ... ? 30 minutes after brewing the warming plate is cool. Obviously with the thermal carafe there is no need to keep the warming plate going to keep coffee warm like the 3200 glass carafe unit but again there seems to be no reason for it in the first place. Is it supposed to temper the carafe while in the brew cycle? The manual says nothing about it at all. The model 3200 manual clearly discusses the 3 temperature settings for the warming plate. On the 3400 the square "Program" button is the "Carafe Temp" button the 3200, so slightly different hardware in the control panel. I guess we will see how it goes.

I have heard problems with the thermal carafe being maybe hard to clean has anyone noticed a problem with the carafe?

When the inside of the pot gets stained put a "dishwasher tablet" in the pot with boiled very hot water. Let it sit awhile, then I rinse really well and the run a vinegar water solution thru the pot (per instructions in book that came with the pot) be sure to remove filter, then I usually run at least two 12 cups of plain water thru pot and you have a clean pot and maker. Just be sure to rinse the pot really well after cleaning you wouldn't want to get any of the cleaner in the maker. I also change the filter at the same time. We've had out pot for 10-12 yrs and still love it!

ASIN	B01N6T5QNO
Best Sellers Rank	#15,268 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #30 in Coffee Machines
Brand	Cuisinart
Coffee Input Type	ground_coffee
Coffee Maker Type	Drip Coffee Machine
Color	Silver
Customer Package Type	Standard Packaging
Customer Reviews	3.9 3.9 out of 5 stars (10,798)
Date First Available	January 20, 2017
Department	All Ages, Unisex
EU Spare Part Availability Duration	2 Years
Exterior Finish	Metallic
Global Trade Identification Number	00086279169082, 10086279245042
Human Interface Input	Buttons
Included Components	Coffeemaker Unit^12-Cup Thermal Carafe^Instruction book
Is Discontinued By Manufacturer	No
Is Dishwasher Safe	No
Item Weight	10.2 pounds
Item model number	DCC-3400NAS
Manufacturer	Cuisinart
Model Name	CUIDCC3400
Number of Items	1
Operation Mode	Fully Automatic
Power Source	Corded Electric
Product Dimensions	7.75"D x 9"W x 14.25"H
Recommended Uses For Product	Household or Office Use, Individual Cups, Large Gatherings, Events
Special Feature	Programmable
Specific Uses For Product	Filter Coffee
Style	Perfectemp
UPC	086279169082 086279245045
Unit Count	1.0 Count
Voltage	120 Volts

Cuisinart 12-Cup Coffee Maker, Programmable PerfecTemp Thermal Carafe Coffee Machine with 1-4 Cup Setting, Brew Strength Control and Brew Pause, Stainless Steel, DCC-3400NAS, Silver

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