Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: Is It stainless steel inside? Thanks
Document: Faster than a microwave, this kettle brings water to a boil so quickly, you'll be amazed. The outside is sturdy plastic and the inside appears to be high grade stainless steel. Our water supply is filtered well water and so far there has been no residue or scale build-up at all inside the kettle. I wouldn't recommend putting anything but water into the kettle to avoid accumulating undesirable residues.
The plastic one smells just plastic and the stainless steel one is easy to be dirty. I needed to use vinegar to wash them from time to time. I will not worry it about this product at all.This is one the only few products which I am quite satisfied about recently.
This kettle gets to a boil super quick and is a cinch to keep clean. I looked around at all kinds of electric, stainless steel, and porcelain kettles and I'm really glad I chose this one. Especially for the price, great value!
It's not stainless steel. It looks a little like a toy but it's the best kettle I've bought in decades. A fast boil. Easy to use. I love the retractable cord. I use this several times throughout the day. I highly recommend this product!
We were introduced to electric kettles on a recent trip to England and Denmark. I ordered this as soon as we got home and have used it many times each day since. Couldn't live without it! It heats very quickly and pours nicely. I especially appreciate that it does not have an exposed coil in the bottom. Rather it has a stainless steel bottom. Perfect!
I love this tea kettle. It boils water SO FAST. Literally it boils water within 1-2 minutes. I just wish the inside was steel and not plastic.
This guy is fashionable and of great quality. The design is distinguished from other normal electric kettles which you have seen. The colors are more adorable and cute than I thought it would be. I love it!Even though it is made of plastic, it does not smell like plastic at all. The interior bottom is made of stainless steel which is shiny like a mirror. There is nothing to complain about this guy.I use this guy to boil water for tea.
I had a stainless steel teapot for use on my stove. I decided to get an electric one and purchased this one because it was not too large and not too expensive. I really like it. It heats the water up fast. I like the on-off switch up on the handle. I also like the adjustable temperature control. It is a little noisy when heating the water, but it takes such a short time to heat it that it is really not that big of a problem.
I really like the fact that it doesn't have a &#34;minimum&#34; level marker like almost every other brand and model does. it's a pleasure to work with this thing, and it's adjustable temperature setting is an extra bonus for such a small appliance. The bottom heating surface is an elegant stainless steel, so this thing is great to look at tool. I have noticed no issues with plastic or chemical odors that others have mentioned. Highly recommended.
It's nice looking and stainless inside. THRILLED. I will update this after using it for awhile.
Answer: It is plastic inside.  Only the bottom is stainless steel.