How To Freeze Dry Ice Cream?
How to freeze dry ice cream? How to make freeze-dried ice cream at home? There are mainly seven steps for the lyophilization of ice cream: 1. place the ice cream on the tray; 2. freeze the ice cream; 3. dry the ice cream, etc. For more details, you can continue to read the following.
How to freeze dry ice cream — step 1
Place the ice cream on the tray of your home freeze drying machine. You can use DIY ice cream, or ice cream you bought from store based on your flavor. Use a scoop to place each individual ice cream on the tray of the freeze dryer, and you can spread it a little bit to make a thinner layer for faster freezing and drying.
How to freeze dry ice cream — step 2
Chiller the ice cream. This is an optional step for the lyophilization of ice cream. It may take 1-2 hours if you put the ice cream directly in the lyophilization machine for pre-freezing, So you can put the ice cream sample in the refrigerator in advance and freeze it to the temp. Of -34°C (a tempt. needed for the freeze-drying machine). By doing this, you can save time for freezing in the freeze dryer. You can also put the ice cream directly in the freeze dryer if you do not care about time.
How to freeze dry ice cream — step 3
Set the appropriate freezing and drying time. Securely place the tray in the freeze-drying chamber. Close the chamber door, turn the machine on, and choose the appropriate freezing and drying time according to the instructions of the machine. You can either try with different time to find which suit the ice cream best. The adjustment of the freezing and drying time should be based on your freeze dryer, so it should be better to set the appropriate time according to the manual. If you are still confused about the time, set the freezing and drying time separately for 12 hours (the freezing time should be reduced to about 10-11 hours if you have pre-freeze the ice cream in the refrigerator.) Or you can even use the default time to freeze dry your ice cream.
How to freeze dry ice cream — step 4
Run the dryer machine. How to make freeze-dried ice cream at home? Step 4 is the key. There is a note that requires your attention. It may take a while for the freeze-dried ice cream to be finished, so you’d better not check whether the ice cream is ready while the machine is running. Because it is an interruption of the freeze-drying process. And it may cause unexpected bad results.
How to freeze dry ice cream — step 5
Test the dryness of the freeze-dried ice cream. Bring the tray out once the freeze-drying process has finished. Find the thickest part of the ice cream piece, break it in half or taste it to see if any moisture has left. If there is moisture, put the ice cream back in the machine chamber and set additional drying time.
How to freeze dry ice cream — step 6
Take out the tray and enjoy your freeze-dried ice cream. An airtight container is right for the storage of the delicious ice cream. The ice cream after freeze-drying can last for 20 years under room temperature.
How to freeze dry ice cream? How to make freeze-dried ice cream at home? Hope you have gotten the knowledge of the lyophilization of ice cream and DIY you freeze-dried ice cream treats.