Burnt Crispy Bits. (TM Pratchett?)
I've always called the oil 'Groundnut' simply because that's how it was referred to in Chinese recipe books when I started using it waaay back in the day. Yes, it's just peanut oil, aka Huile d'Arachide in French.
Dunno why, but like in English they too seem to use different words to refer to the nuts (cacahuètes) and the plant or any products derived from them. In British English we also have the term 'monkey nut' which is used to refer to peanuts still in their outer shells.
A bit more expensive than sunflower oil, but I always find the latter to have a flavour I don't particularly like.
I don’t know of any brits who says groundnuts, everyone I know calls it peanut oil.
We always called them monkey nuts as kids.
To confuse further more, the Swiss call them "spanischi Nüssli", nuts from Spain.-
Not heard of "Spanischi-Nüssli-Oel" though. That would be Erdnussoel even here.
Interesting.. In the place near me there are separate and clearly marked barrels for different oils. Maybe eventually in the burning facility they mix them anyway...
Geneva waste collection centers have one barrel for mineral oil (motor) and another for vegetable oil (cooking).
Mineral oils can be cleaned and used to create fresh motor oil or in manufacturing. Vegetable oils need a different recycling process and/or different final reuse.
How it's used varies hugely across countries, cantons and regions, so in some places separation helps to minimise the reprocessing requirements, in others, where it's all going to be used directly as fuel anyway, there is no real need to do so.