Artist's commentary
Marisa realized a super serious thing before Valentine's Day, and she's doing her very best.
※Optional Supplemental Information:
Marisa is making chocolate directly from cacao. The process of separation is therefore necessary. (I don't actually know if they use an industrial centrifuge for this)
Still, this is normal for Marisa, since she needs to separate the chemical substances of certain mushrooms etc, so she would keep an assortment of various equipment at her disposal (and that's good)