For more than 20 years the company has been partnering with some 100 local suppliers of milk.  Its main principle is to offer healthy dairy products, including kefir, cottage cheese, cream, yogurts and soft cheese.  SIA Elpa is the only dairy processing company in Southern Kurzeme that offers tours and tastings of products.  Products can be bought, and during the tours, visitors can taste kefir, cheese and yogurt and help with the dairy processing process themselves.