Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not airtight at all

I read several AMZN negative reviews of this brand for other shapes prior to ordering and I should have heeded them. Since I got it as part of the 4 for 3 promotion, I did not lose much money. The shapes themselves are fine as is the thickness and general quality of this product. We all know if a container is not airtight, food spoils quicker and that is the issue with this product. So now I plan to seal the food items with a plastic wrap first and then place in the specified container. I hope this will work better than just using the plastic wrap alone. I'll add an addendum if it doesn't.