Don't worry about it. It's a taken of my appreciation for your business, and friendship.
没关系的。这是向你表示我们在生意及友谊上的一点心意。
On the other hand, your stomach would turn at the idea of frying potatoes in animal fat -- the normally accepted practice in many northern countries.
另一方面,你一想到动物油炸土豆就会反胃,但这在北方许多国家却是一种普通的烹任方法。