1867 The company Roller Mill Wenzel Jochmann Ajdovščina (Valjčni mlin Wenzel Jochmann Ajdovščina) was established.
1926–1948 There were a few changes of the mill’s ownership during this time, which were followed by nationalisation. However, the mill continued operating.
1955 Other mills and bakeries began joining the renovated mill.
1958 The company was renamed the Trading and production company MLINOTEST (Trgovsko in proizvodno podjetje MLINOTEST). Start of pasta production at the factory in Ajdovščina in the same year.
1963 Bakeries from the Primorska region started merging under Mlinotest’s auspices. This enabled Mlinotest to include fresh bakery products and bread in its offer of products.
1966 Start of the production of filled dried pasta – tortellini.
1968 Completion of the concrete cellular silos for cereals at the current location at the Tovarniška cesta street, which remains the tallest building in Ajdovščina today.
1971 Start of production at the new bakery in Ajdovščina at Mlinotest’s current location.
1974 Movement of the pasta production facility and mill to the current location.
1999–2007 Takeover of the companies Peks Škofja Loka, Kruh Koper, Žitoproizvod Karlovac and Pecivo Nova Gorica.
1999 Mlinotest obtained the ISO 9001 quality management certificate.
2000 A new line for short pasta was purchased and dried pasta production capacities doubled. Serial production of sandwiches began in the same year.
2001 Expansion of "Tortelinka" (the tortellini production plant) – the production of filled pasta and the introduction of the HACCP system. Potato gnocchi were placed on the market.
2002 Significant completion of the production line in the mill, enabling Mlinotest to offer its consumers pre-cooked mill products for quick preparation for the first time: at first, maize polenta and wheat meal.
2003 A certificate of organic production was obtained for packaging organic flour, production of pasta, bread and bakery products in Ajdovščina and croissants in Škofja Loka, as well as for the production of bread and bakery products at the Mlinotest Kruh Koper plant.
2004 Automated production of frozen bakery wares, doughnuts and pizzas was introduced in Ajdovščina.
2008 Mlinotest begins expanding its own retail network intensively. Today it comprises 63 shops and trading and catering facilities such as Mlinček throughout Slovenia.
2009 Mlinotest obtained the certificate of the IFS International Food Standard.
2010-2011 Establishment of the subsidiary Mlinotest S in Ruma (Serbia), construction of a factory and launch of production of fresh common and filled pasta and gnocchi.
2015-2017 Investment in increasing production and logistical capacities for semi-baked frozen bakery products.
2016 Mlinotest introduced the manufacture of gluten-free products in Nova Gorica. A new plant for producing cakes and other confectionery was opened in Ajdovščina.
2018 A new factory for producing filled pasta and potato dough products in Ajdovščina.

The book entitled 150 years of Mlinotest was published.