Which of the following is NOT a method for removing oxygen from packaged foods?

HMR, or Home Meal Replacement, refers to pre-packaged meals designed for convenience, often found in grocery stores. While these meals can be packaged using various methods, they do not inherently involve the removal of oxygen as a primary function of their packaging process. In contrast, vacuum sealing, modified atmosphere packaging, and controlled atmosphere storage are all methods specifically designed to alter the atmosphere around the food, effectively removing or reducing oxygen to extend shelf life and ensure food safety.

Vacuum sealing eliminates air from the packaging, effectively reducing oxygen levels. Modified atmosphere packaging adjusts the composition of gases in the packaging to optimize conditions for food preservation. Controlled atmosphere storage involves managing the levels of oxygen, carbon dioxide, and other gases in a storage environment to prolong the freshness of the food. These techniques are crucial for preventing oxidation and the growth of aerobic bacteria, whereas HMR does not focus on this aspect, making it the correct answer for the question.