Frozen foods often can’t last long naturally and we can’t always go looking for them frequently. It is therefore necessary to freeze seasonal products to make them available later:
However, the problem is often related to the use of plastic containers, trays or bottles to hold food and drinks in the freezer or freezer; and plastics can release substances such as free radicals , which are harmful to health. Also, glass is reusable and glass containers are a preferable alternative to plastic The only difficulty with this material is that if a glass container is filled to the top with liquid, it can explode as the contents increase in size. during the freezing phase. With these precautions, you could still use glass avoiding the explosion:
2. Also leave 4 or 5 cm of space in the free container when freezing sauces, fruit pulp or liquid. A bottle is always better, especially when the contents are thick, because the glass can break if the contents expand sideways. Once thawed, it will not be possible to freeze them again.
3. Per congelare la frutta matura, sbucciate e tagliate i barattoli senza coperchio di stoccaggio. Alcuni non recuperati la loro qualità originale quando scongelati, ma può essere utile, ad esempio, salvare loro per fare il gelato in estate con ricordi di tutte le stagioni. 4. I pomodori non possono essere congelati ma se per esempio ne avete coltivati un po’ nel vostro giardino e vi hanno lasciato la produzione, è possibile disidratarli e congelarli in un barattolo con un po’ di spazio in più.
6. il pane, biscotti e torte possono essere conservati nel congelatore senza l’utilizzo di qualsiasi contenitore, oppure possono essere avvolti ad un panno con cera d’api per renderli come al forno. Qui di seguito, alcuni consigli aggiuntivi per una possibile operazione in sicurezza:
- Choose the correct type of glass jar . Ideally, you should use jars designed specifically for canning. Wide-mouthed ones are the best.
- Use the lids corresponding to the glass jar you are using. These often consist of two parts, the cap and the wire (they are also a single cap), and are specially made to expand or contract depending on the environmental conditions. They also close hermetically, protecting the food from damage that the cold can cause.
- Wash and dry the glass jar very well before filling it.
- Don’t fill them to the brim . Leave a space of 1.25 cm. for fruits and vegetables that do not contain added liquids or sugars.
For soups and other types of liquid foods, leave 1.25 cm. when you use a half liter jar and leave 2.5cm. for 1 liter jars.
It is important to leave this gap, as it allows the food to expand once frozen and prevents the jar from breaking and the food from putting pressure on the lid.
- Stir the contents of the glass jar with a spoon or spatula before sealing it. This will release air bubbles and help reduce the expansion of the food.
- Clean the mouth of the jar. Any leftover food that remains in it can prevent proper sealing.
- Place the lid on the jar and then seal it with the screw. Tilt the jar slightly to make sure it is tightly closed and the food does not spill.
Finally, we report below the link to a VIDEO that explains this simple but important concept (further tips to follow):