Instruction: Generate an answer to the question by utilizing the information contained in the document.

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Question: Is the bottom (that is in contact with the stove) smooth or ridged?  I have a glass top stove and do not want to scratch it.
Document: I honestly felt like I was stealing from somebody when I clicked the "purchase" button. After researching the best equipment for Asian cooking, the experts concluded that the carbon steel flat bottom wok scored top marks with professional chefs. The idea is to season the wok (you can find out how to do this on about.com) instead of purchasing a teflon coated one. I cannot emphasise how important this step is if you want to create the perfect Singapore Noodles or Chow Mein!
Have used it five times since. You need very little oil when cooking, so food is flavorful AND healthy. To keep it nonstick and non rusty, you merely have to wash in hot water, dry well, and wipe with a bit of veggie oil and a bit of paper towel. I like the flat bottom which sits well on my gas stove and is stable. My last wok came with a ring which unfortunately caused scorch marks on my gas stove top.
Make sure you season as the directions instruct. I have a glass top range and have had no problems with even heat distribution.
We purchased a new electric range with a glass top. We needed a new wok. This one fits the bill just right.
This works great even on an electric stove top. Good quality and very heavy duty would recommend it to a friend.
Expect to pay a good bit of money (maybe a $100 or so...maybe less) for it and learn how to treat it right. You want either something stainless steel and thickly layered (my preference is All Clad) or something cast iron but not thick like a grill pan or a burner top griddle.Anyway, I hope I helped someone out there. This isn't a terrible wok. But I wouldn't pay any more for it than I already did, and I got it for free.
Excellent wok. I especially love the flat bottom to keep it steady on the stove. Perfect size to cook extra large portions.
This is a good sturdy wok and should last a lifetime. One reason I ordered it was to avoid artificial coatings, teflon, etc. However I found it difficult to season properly without the bottom looking &#34;splotchy.&#34;  Be careful about ordering the right size for your stove or kitchen. I ordered the 14 inch which turned out to be too big for my electric stove and somewhat difficult to handle.
I have an Eastman wok burner on the patio with several round bottom woks. Recent windy weather has kept me from using the burner. To purchase a wok ring for my kitchen jennair gas range top would have been $65 on ebay. I received this flat bottom wok and seasoned it &#34;my way&#34; as I have done with other woks. I have used it several times and it works fine.
In that respect, I suppose a non-stick variety, which didn't require an outside process, would be better suited.Yes, the lid is thin and easy to ding, but the wok is heavy enough that I already need two hands to move it from point A to B, I don't want a heavy lid to contend with either.
Answer: Smooth.  I do not have a glass top but an electric one with those circular eyes.  I so like woking.  I plan to buy a portable cooktop to take outside to keep heat out of the kitchen during summer months. Have fun.