Materials: sacks, sawdust, foam board, paper, plastic sheets, edible glue, frozen crystal bags.
Tools: scissors, ruler, tape measure, pen.
Steps:
1. Soak the sack in water to make it completely wet, then squeeze out the water and put it in a ventilated place to dry.
2. Fill the sacks with sawdust, fill every corner of the sacks with sawdust, and then wrap them with * paper.
3. Cut the foam board into appropriate size and stick it on the sawdust bag in all directions with edible glue to ensure it is completely closed.
4. Seal all interfaces with adhesive tape to prevent leakage.
5. Stick plastic plates on the top and side of the refrigerator box, and cut them with a pen according to the shape of the refrigerator to ensure that the plastic plates can completely fit the refrigerator.
6. Put the frozen crystal bag in a proper position to keep the temperature in the refrigerator.
7. Check all the details to make sure there are no loopholes.
Although self-made Michelin refrigerators are time-consuming and laborious, they are more environmentally friendly and economical than those on the market, and it is a very creative practice to make refrigerators of different sizes according to individual needs.