People have been seriously preparing for the apocalypse over the past few years. The concern prompted many retailers to prepare emergency food products with long shelf life in the case that an apocalypse does strike. Costco, who's known for selling bulk items, began selling a 26-lbs tub of mac & cheese a few years ago. However, only recently did they sell out of the product.

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Costco's rolled out a few products that were specifically made in the case doomsday comes. Earlier this week, they announced that their 26-lbs tubs of mac & cheese that have a storage life of 20 years is officially sold out. It's interesting because they've had the item on their shelves for a few years at this point. The product details reveal that the cheese and pasta are sealed in separate  “Metalite pouches” with oxygen absorbers to “to protect the quality and ensure a long shelf life.”

In the past few years, the company garnered a lot of attention for selling these emergency food kits. On their website, they're selling products, ranging from $1000 to $6000, which are meant to keep a family of four fed for about a year.

A Costco rep previously told Detroit Free Press that the idea of having these kits "came about making a great starter kit for a family who wanted to prepare for any kind of disaster. This is a great value with shipping included."