Review on Stainless Steel Coffee Mug Shatterproof by James Eledge

I decided to test this new steel mug's ability to hold the insulation against one of my regular ceramic mugs. I pour equal amounts of boiling water into room temperature mugs, this stainless steel mug, and a regular sized clay mug. Total water was 10 ounces each. The room was 68 degrees. I was surprised at the first 1 minute reading, the steel cup started to work at a much higher temperature. I think this was because the regular mug took a lot of energy (heat) to cool the sides of the mug, while the steel mug didn't take as much to cool the much thinner sides. I did a general test for 15 minutes as both cups will eventually reach the same even temperature (both cups will eventually reach room temperature). I probably won't be using this mug at home as it's steel and not microwave safe, but it will work fine for my RV. At 13.5 ounces, this mug is slightly larger than a regular ceramic mug, at least compared to the ones I have. I think most of my mugs weigh around 12 ounces. Minutes -- Steel cup temperature -- Ceramic cup temperature1 ---------- -------- 1773 --------- 182 --------- - - 1675 -- --- ----177 -------------------------1607 ---------169 - - ---- -------------------1559 -----------------------165 - - ---- -------15015 --------151---------------- - ---- ----138 I really like this mug, it has a nice wide handle for more comfort than most others with narrow handles, a mirrored interior for easy cleaning, and 304 (18/8) steel. Other cups with thin handles seem uncomfortable. The mug is lightweight yet high quality. The stitching is hard to see, I think it's in the lip. I will update this review in case anything happens to the mug.