I'd say you could, but it's not overly thick metal so it will heat up quickly, and anything too hot may see it warp a bit. But over a small fire should be fine. Bear in mind that it will blacken the bottom of the mug in doing this.

The small mug is only 60 grams, Jumbo. I wouldn't put it in the hefty and sturdy category, but I would say it has a good balance between strength and weight.

These are made in China, Jumbo.

G'day Andrew,

When you select the size from the drop-down menu it will update the in-use dimensions. The smallest mug (8cm) has a 7.5cm internal diameter.

G'day Steven,

Great question! We've calculated these as if they are full to the brim. The 8cm mug can take 450ml; the 9cm mug can take 650ml and the 10cm mug can take 800ml.

Thanks for the heads up Steven. 

G'day Bill,

You can certainly pop the Campfire Stainless Steel Mug straight over a gas burner. Just make sure the flame size doesn't exceed the diameter of the mug though.