Why Do Individually Wrapped Cheese Slices Melt When Stored in a Sandwich with Sliced Turkey Breast?

Have you ever encountered the peculiar phenomenon where an individually wrapped cheese slice seems to melt or sag under your sliced turkey breast when you store a sandwich in a plastic bag, even if it's refrigerated? This confounding occurence raises a myriad of questions and, no doubt, a few eyebrows. Often, you might find yourself scratching your head, pondering whether this is somehow the result of your refrigerator's temperature, or is it an issue with the cheese's quality?

The Science Behind Cheese Melting

For a thorough explanation, we often need to look no further than the science behind cheese and its properties. Emulsifiers, such as sodium citrate, play a crucial role in the processing of cheese, especially in processed cheese products. Sodium citrate is added to these cheese slices during the manufacturing process to improve their melting properties.

Processed cheese slices are designed to melt easily and smoothly without separating, which makes them a popular choice for sandwiches. This characteristic is primarily attributed to the high moisture content in these slices. The USDA grading for American Processed Cheese takes into account moisture content, and the higher the moisture content, the more likely the cheese is to "melt" or slump to conform to the other ingredients in the sandwich.

When you place these cheese slices in a sandwich with turkey breast, the turkey can act as a 'quality control test.' If the cheese slices are exposed to moisture, pressure, and the compressive force of the meat, they may indeed slump and appear to 'melt.' However, this does not necessarily mean that the cheese is melting in the traditional sense; rather, it is conforming to the shape of your sandwich.

Why Not Use Higher Grade Processed Cheese?

Some might suggest trying higher quality processed cheese slices, such as those sliced on-site by deli counters in supermarkets. These slices are often processed to a lower moisture content, resulting in a firmer texture and a longer shelf life. If you prefer a firmer cheese slice that doesn't sluff as easily, this is a good option to consider.

For those who appreciate the smooth, melt-in-your-mouth quality of processed cheese but may be put off by the potential melting effect in sandwiches, consider experimenting with homemade meltable cheese slices. You can even attempt to replicate the processing method used by the manufacturers to add emulsifiers like sodium citrate to high-quality cheese at home.

Meltable Cheese at Home

If you are a cheese lover and want to create your own meltable cheese slices, there are a few steps you can follow. First, you will need to select a quality cheese (such as Cheddar or Swiss) and add sodium citrate or other emulsifiers. The process involves melting the cheese, adding the emulsifiers, and then pouring the mixture into a mold to cool and solidify. Once the mixture is solidified, you can cut the cheese into slices.

This method allows you to control the melting properties of your cheese, ensuring a smooth and consistent texture. It's a fun and rewarding project, especially for fans of gourmet cheese who enjoy experimenting with different methods and ingredients.

Finding the Best Cheese for Your Needs

In conclusion, the infamous slumping of individually wrapped cheese slices in a sandwich is not necessarily a sign of a malfunctioning refrigerator or inferior cheese, but rather a testament to the design and properties of processed cheese. Whether you prefer higher moisture content processed cheese for its smooth and creamy texture or opt for a firmer, lower moisture alternative, homemade meltable cheese can be a delightful way to cater to your specific needs.

By understanding the science behind cheese melting and the impact of moisture content, you can make informed choices about the cheese you use in your sandwiches. Whether you're a culinary enthusiast or someone who simply enjoys a well-made cheese melt, the insights provided here can help you enhance your sandwich-making experience and ensure that your favorite slices always stay in place.

How to Make Your Own Meltable Cheese Slices at Home

To make your own meltable cheese slices, follow these steps:

Select a quality cheese (such as Cheddar, Parmesan, or a blend). Melt the cheese slowly in a double boiler, stirring frequently to prevent burning. Add 1/4 to 1/3 teaspoon of sodium citrate per cup of cheese for a smoother melting effect. You can also use other emulsifiers like vegetable gum or xanthan gum. Pour the melted cheese into a mold or a food-safe container, then let it cool and solidify in the refrigerator. Once solidified, use a cheese slicer or a sharp knife to cut the cheese into thin slices. Store the slices in an airtight container in the refrigerator until ready to use.

By following these steps, you can create your own meltable cheese slices that will conform to your sandwiches without slumping or separating.