So, I understand the reasons for a copper egg bowl but there is NO WAY my husband would agree. but, I AM a jeweler and I use copper for a lot of things. here is a thought. If using a hand mixer, how about this. I take 12 ga copper wire (that is VERY heavy for those who aren't familiar) and use it to cage, in 5 or 6 swirled twists around, a single, good sized, metal mixing beater. then, you make the eggs in a stainless steel bowl using a single beater but, with the extra wires, you have the additional amount of air added to the eggs with one beater instead of two. you have copper on the moving piece rather than the stationary piece. this should, theoretically, give the same chemical effect as using a stainless whisk on a copper bowl.
What do the pros think?