Has anyone tried cooling the black stuff and heating the clear stuff when mixing them?

[Thehogg]

I mean, I just got to thinking the clear stuff is able to dissolve more when it’s warm. I would also suspect that crystallization would be greater if the black stuff was cold. Obviously it’s put in the freezer as part of most techs.

I’ve frozen the black stuff and you can see yellow blobs in it

 

[redbird]

I can only assume you mean cooling the water layer and heating the solvent layer.

Heating the solvent is commonly recommended though one much act swiftly (though carefully to avoid emulsion) to mix before the water layer cools it back down.

Some teks recommend heating the water layer also but recent developments in the minimum polymer branch of technique research have shown that cooler base soup temps are one of the factors in reducing polymer formation.

That said, I've never seen cooling the water layer below room temperature recommended and I would assume it's not a good idea because it would slow down the movement of molecules from the water and the thermal capacity of water is such that it would further accelerate the cooling of the solvent, negating the benefit of heating it.

You certainly could do that experiment though. We'd love to have the data!