Brew time: Reviewers say less than five minutes 

I’ve written before about my love affair with my Coleman cookstove, which offers two burners and measures about 22 inches by 14 inches, making it easy to pack in a trunk. Yet, for even more portability and coffee-making quickness, I’d suggest this Bottletop single-burner stove, which can fit up to an 8-inch pan to boil water. You’ll also need to purchase a 16-ounce bottle of propane and have a brewing method or instant coffee ready, as this will only boil water for you. 

Promising review: “Bought this for one purpose only, and that is to heat water in a teapot for my morning instant coffee. It is solidly built, and very stable. I was worried about that. It boiled 2 good size mugs of water in 4 1/2 minutes on the lowest setting. While my camping buddies are waiting for their their camp percolator to make their coffee, I’ll be relaxing with a cup of Folgers instant. I’ll be watching them pick coffee grounds out of their teeth whilst I enjoy my second cup. At that point, it’s Bloody Mary time. ;)” — Bryan B.

Get it from Amazon for $29.80.