I found a free pattern at Lion Brand's website for
potholders using worsted cotton yarn, which I already have some in my stash!

But the pattern calls for the potholders to be triple stranded. I have some bulky cotton yarn in my stash...would I be able to use that too, or does the triple stranded cotton yarn offer a better protection from heat than a single strand of bulky cotton yarn might? Maybe some heat might get through some of the holes in the knitting work if i just used single stranded bulky cotton yarn?

I'm probably making this out to be harder than it is, but I'm just trying to be safe...I don't want to knit something, thinking it's going to be okay to use, then grab a hot pan with my "faulty" potholders that I spent time to make that may not really work and wind up burning my hands and fingers.