Insulation Cup Evaluation,Intuitive Temperature Change

Today, we want to carry out a freezing challenge: selected 8 insulation cups between the price of 6-70USD , all were stuffed into only 2 degrees Celsius refrigerator for evaluation (the picture got more than one insulation pot, not in the scope of this review). So what is the difference in function between them with the price difference? Can carry the extreme freezing challenge? The more expensive the better, cheap is no good?

These 8 insulation cups are selected from the more well-known brands in … Read the rest