A tradition passed down to a generation to another. In the hot summer days, in August our grandmothers used to go in the fields and start pick the most colorful, saucy and ripe tomatoes. We as kids enjoyed to help them storing the harvest in big baskets, prepare the glass jars and to pick woods for the fire pit. Tomatoes in the jar where then boiled in a big  pot over the fireplace containers until they reach the best consistency. As a reward we were allowed to grab some corn cords to be roasted. This is a colorful tasty memory printed in mind of our childhood in Tuscany. 
The activity can take place from the morning, with the farmer we start preparing the jars and the fire place. We go picking tomatoes and start preparing the sauce. A good combination is preparing home made pasta with freshly brooded eggs. The simplest and tastiest Italian lunch. 
This is a traditional process chosen to maintain the organoleptic properties of the tomato and to propose a genuine and authentic final product. The glass jars full of sauce pass through the pasteurization process - i.e. they are brought to the ideal temperature to be stored for a long time, without preservatives or dyes.
You can decide to bring home some jars and use them during the winter months, to call back in your memory the hot Italian summer days colored in red.