Luxurious merchants' mansions naturally require luxurious rooms, and the kitchen is certainly one of them. In the kitchen, Malin saw beautiful blue and white porcelain bowls. These ceramics, coming from Thainan, had a lovely appearance and a price tag that the wealthy in the Western Human World were willing to splurge on.
In short, it was probably double the pleasure.
There were also knives inlaid with Cleansing Stones—this type of stone is a kind of Rune Stone, originally just a necessary decoration on the knives used by Dwarves to cut meat (Dwarves are actually quite lazy), but humans use it more because of its affordability and practicality for cleaning kitchen knives.