Originally, Thai cooking reflected the characteristics of a waterborne lifestyle. Aquatic animals, plant and herbs were major ingredients. Large chunks of meat were eschewed. Subsequent influences introduced the use of sizeable chunks to Thai cooking. With their Buddhist background, Thais shunned the use of large animals in big chunks. Big cuts of meat were shredded and laced with herbs and spices. Traditional Thai cooking methods were stewing and baking, or grilling. Chinese influences saw the introduction of frying, stir-frying and deep-frying. Culinary influences from the 17th century onwards included Portuguese, Dutch, French and Japanese. Chillies were introduced to Thai cooking during the late 1600s by Portuguese missionaries who had acquired a taste for them while serving in South America. Thais were very adapt at "Siameseising" foreign cooking methods, and substituting ingredients. The ghee used in Indian cooking was replaced by coconut oil, and coconut milk substituted for other dairy products.