The butter, being an enemy of light, air and heat, can be easily stored in the refrigerator for long periods and in the freezer at 18 ° for a year.
Placed in special containers in the fridge will not have time to turn yellow or become rancid as the daily use of it. It is indispensable, however, to inspect daily all over the refrigerator to prevent spoilage.
For easier storage of butter you use salt – with 3 or 5% of salt, and even larger quantities, which reach 1’8 and 10%. The butter is softened, and then mixed with salt and put in glass jars or porcelain, with lid, in a cool place or refrigerator.