Winter Cycling - Platform Pedals and cold feet

The pedals on my bike suck, so I'm looking for new ones. Think it would make a difference between steel/aluminum/magnesium/plastic when it comes to transferring cold to my feet? I'm thinking plastic ones would be the most "insulated". Am I wrong in this assumption?

I replaced (due to wear) my OEM metal platforms with plastic BMX pedals. I've noticed no difference in foot warmth. And I ride in mid-high [waterproofed] leather hiking boots. Foot warmth would have more to do with your choice in footwear.

I ride in mid-high red wing work boots with an aluminum toe. Usually my feet are fine, yesterday was the only time my toes have been cold on a ride. I started noticing yesterday that my feet would be cold when I stood on the ground, and wondering if the pedals could have a similar effect. But if you didn't notice a difference than I doubt I would either. Thanks.

If the material your platform pedals are made from makes a difference, you're not wearing the right footwear. Instead of replacing your pedals, get some well-insulated, windproof, waterproof hiking boots.

With a cage style, the area of metal-sole contact is quite small so heat transfer is not an issue.
MKS Sylvian Touring is a nice, durable, maintainable cage model , double sided, large enough for boots.

If the material your platform pedals are made from makes a difference, you're not wearing the right footwear. Instead of replacing your pedals, get some well-insulated, windproof, waterproof hiking boots.

This post should end the thread, since it is dead-on.

Ride 11 mile commute with Crank Brother Magnisum Mallets they may be acting like heat sinks I have been wondering about it.
Toes are usually cold when I arrive. Riding in the higher teens 16-20 F.
Thinking about trying
---
Insulated insole such as toasties.
Or
Thicker Neopren outer
Or
Lake winter cycling shoes of some sort.

My current shoes are tight which adds problems to just adding more socks, I am told and believe, there is importance in having some air space in the foot box..

Yes, get a pair of shoes or boots one or two sizes too big. Try insoles and extra socks. Neoprene can be good.

I ride in mid-high red wing work boots with an aluminum toe. Usually my feet are fine, yesterday was the only time my toes have been cold on a ride. I started noticing yesterday that my feet would be cold when I stood on the ground, and wondering if the pedals could have a similar effect. But if you didn't notice a difference than I doubt I would either. Thanks.

Steel toe work boots are not going to be as warm as other lighter options but if you have to wear them for work such is life. I found out many years ago that even standard non steel toe boots of the same construction were always warmer. The steel toe acts as a heat conductor at the worst possible place. This is also the place were there is the least amount of room available for insulation of the toe which compounds the problem. One option is to put those in a backpack and wear some lightweight winter hiking boots during the ride. If the ride is short there is probably no need. Just get your next pair of boots a little bigger so you can wear some extra thick wool socks. The nice thing about the 8 inch lace up kind of boots is that the boots can be pretty loose fitting for extra warmth because the upper part of the boot holds them in place so the fit can be a little sloppy on the lower. This makes room for thick socks and more insulation. But might require a thin inner sock to prevent blisters in some situations.