A Canadian company has recently developed a plastic wrap to aid detection of stored food contamination. This packaging innovation is based on a proprietary coating technology on the plastic wrap that can detect the level of bacteria like E-coli and salmonella within 30 minutes after the coating process. Post-detection, the wrap will undergo physical changes to indicate the same. The contamination would be indicated by change in colour or by some other method. The technology is not yet 100% proven, but can help in preventing the consumption of the spoilt food kept in refrigerator or cold storage. This new type of plastic wrap would cost about 25% more than the conventional plastic wrap. The technology is required to be perfected before its commercial usage.