I understand summer milk naturally has a higher fat content BICBW. This might 'challenge' the homogenisation.
Actually...
In the UK summer milk usually has a lower bf content- Butterfat content being affected by food intake and lactation length.
High bf correlates to high fibre, so in the UK that’s historically a winter thing when the beasts eat hay. Similarly, traditionally herds calve in the spring and it’s only come autumn that the late lactation full fat comes in. Silage doesn't make much d
Over there in FORRIN, the grass is standing hay at this time of year, mebbe?
Either way it shouldn't have any effect on the homogonisation. The whole point of that is to make the fat globs small enough that they disperse throughout.