On tetra pack of fruit juices , it is printed "IF THE PACKET IS PUFFED DO NOT BUY". What is the reason behind this??
Puffed pack means there is a gas inside the packet and this gas is produced due to fermentation caused by a microbe. Presence of microbe makes the drink unhealthy and bad that is why it is written on the pack " If the pack is puffed don't buy it".