
Parmesan cheese is a hard, aged cheese with a relatively long shelf life. It has a lower moisture content than other cheeses, which affects the way it melts. When heated, it melts into a smooth and creamy texture, making it a popular choice for gratins, pasta dishes, and toppings. However, due to its low moisture content, it does not melt into a gooey mass when heated directly but instead tends to crisp up and brown. This makes it ideal as a topping or garnish, where it can gently melt when added to food that is still hot.
| Characteristics | Values |
|---|---|
| Melting | When heated, Parmesan cheese melts into a smooth and creamy texture. However, its low moisture content prevents it from melting into a gooey mass, and it tends to crisp up and brown instead. |
| Uses | Parmesan cheese is perfect for gratins, pasta dishes, and toppings. It can be melted in butter and added to dishes like carbonara and cacio e pepe. |
| Storage | Parmesan cheese has a relatively long shelf life when stored properly in the refrigerator. |
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What You'll Learn

Parmesan's lower moisture content
Parmesan cheese has a lower moisture content compared to other varieties of cheese. This is due to the lengthy ripening and maturation period, which can range from 12 to over 40 months. During this time, the cheese undergoes a drying process, shedding moisture and weight. The final moisture content of Parmesan cheese cannot be more than 32%, as established by the Food and Drug Administration in the 1950s.
The low moisture content of Parmesan cheese has several effects on its characteristics. Firstly, it prevents the cheese from melting into a gooey mass when heated directly. Instead, it tends to crisp up and brown, making it ideal as a topping or garnish. Secondly, the lower moisture content contributes to the hard and grainy texture associated with Parmesan cheese. This texture is further influenced by the use of raw semi-skimmed milk and high cooking temperatures during production.
Additionally, the maturation period and moisture content play a role in developing the mild and fragrant aroma of Parmesan cheese. The decreased moisture content during aging can lead to lower concentrations of FFAs (branched-chain and linear fatty acids), which contribute to the overall aroma and flavour of the cheese. The production process, including the ripening and maturation stages, also ensures that Parmesan cheese has a long shelf life, especially when stored properly.
The rate of cooking during the cheese-making process is crucial to managing the moisture content. If the curds are heated too quickly, excessive dehydration can occur, leading to case hardening and a higher moisture content in the final product, which is undesirable for Parmesan cheese. Therefore, the curds must be slowly heated and continuously stirred to prevent dehydration and maintain the desired moisture level.
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Grating and melting
To grate Parmesan cheese effectively, use a fine grater to create delicate, thin tendrils. This will help the cheese melt more evenly and smoothly. The key to successful melting is to avoid direct heat, as this can cause the cheese to brown. Instead, gently heat the cheese, allowing it to retain its creamy texture.
One effective method is to melt butter first and then add the grated Parmesan cheese. The fat in the butter helps incorporate the cheese, preventing it from becoming clumpy. You can also add a small amount of cream to thicken the mixture if desired. This technique is perfect for creating creamy pasta sauces or dishes like Cacio e Pepe.
When using melted Parmesan cheese in pasta dishes, it's essential to add the cheese immediately after tossing the noodles in butter. This ensures that the cheese has something to stick to and prevents it from clumping. Additionally, using starchy pasta water can help keep the Parmesan from becoming too clumpy in sauces.
In conclusion, grating Parmesan cheese finely and melting it gently, without direct heat, are crucial steps in achieving a smooth and creamy texture. By following these techniques, you can incorporate melted Parmesan into a variety of dishes, enhancing their flavour and texture.
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Using butter
Parmesan cheese has a unique relationship with melting. Its low moisture content means that when heated, it does not melt into a gooey mass, but rather tends to crisp up and brown. This makes it ideal as a topping or garnish, where it can be added to food that is still hot enough to gently melt the cheese without burning it.
One way to ensure that Parmesan cheese melts properly is to use butter. The fat in the butter helps to incorporate the cheese, resulting in a smooth and creamy texture. Here are some tips and techniques for using butter to melt Parmesan cheese:
- Ratio and Texture: It is important to get the right ratio of cheese to butter. Using equal parts cheese and butter can result in a greasy texture. A combination of two parts cheese to one part butter is recommended for a creamy texture.
- Temperature and Technique: When melting Parmesan cheese with butter, it is important to cook on low heat. Adding the cheese gradually and stirring constantly will help create a smooth sauce. Fresh, finely grated Parmesan cheese is best for melting, as pre-shredded cheese may have additives that prevent good melting.
- Applications: This method of melting Parmesan cheese in butter is ideal for creating sauces, such as an Alfredo sauce for pasta. It can also be used as a topping for dishes like Cacio e Pepe. Additionally, spreading the cheese and butter blend on bread before broiling can create a delicious, crispy texture.
- Add-Ins: For an even richer sauce, heavy cream can be added to the melted cheese and butter mixture. This will create a thicker, more indulgent sauce.
- Time and Patience: Melting Parmesan cheese properly takes time and patience. Slowly adding the cheese over the course of 30-45 minutes, while constantly stirring, will yield the best results.
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Starchy pasta water
This starchy water is the key to achieving smooth, creamy pasta sauces. Adding a splash of starchy pasta water to your sauce helps to thicken it and ensures your pasta is evenly coated. It can also emulsify buttery or oily sauces, creating a luxurious, non-greasy finish. Classic Italian dishes like cacio e pepe and carbonara rely on the binding power of pasta water to bring the dish together.
To use pasta water effectively, cook your pasta until it's almost done, then finish it off by heating it with the sauce and a little pasta water. This technique will take your pasta to the next level, creating a silky, saucy dish.
But pasta water isn't just for pasta. It can also be used in bread-making. Substitute pasta water for the water in your dough recipe, and you'll find that the starch helps your bread rise. You can even freeze pasta water in ice cube trays to add to sauces, soups, or bean broths later on.
So, the next time you boil pasta, remember to save that precious starchy water. It's a simple yet powerful ingredient that can transform your cooking.
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Topping and garnish
Parmesan cheese is a versatile ingredient that can be used in a variety of dishes as a topping or garnish. It has a unique, sharp, savoury taste and a hard, granular texture. When heated, it melts into a smooth and creamy texture, making it perfect for gratins, pasta dishes, and toppings. However, its low moisture content prevents it from melting into a gooey mass; instead, it tends to crisp up and brown. Therefore, it is ideal as a topping or garnish added to dishes that retain enough residual heat to gently melt the cheese without browning it.
For example, Parmesan can be grated over salads or roasted vegetables as a garnish, adding a savoury finish to the dish. It is also commonly used as a topping for pizza, where its melting properties and flavour can enhance the dish. In soups, grated Parmesan can be used as a garnish, adding a unique level of flavour and texture to the dish before melting into the broth.
When using Parmesan as a topping or garnish, it is important to note that it should not be cooked for too long, as heat can dull its flavour. It is best added at the end of the cooking process to maximise its flavour. Finer grating is also optimal, as it ensures the cheese melts evenly and mixes better with the food, enhancing flavour distribution.
Freshly grated Parmesan cheese melts nicely if given time. The secret to getting it to melt quickly and easily is freshness. Therefore, when purchasing Parmesan for melting, it is best to opt for fresh products, as the longer it is exposed to oxygen, the harder it becomes, making it difficult to melt.
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Frequently asked questions
Yes, parmesan cheese does melt. However, due to its low moisture content, it does not melt into a gooey mass when heated directly. Instead, it tends to crisp up and brown.
The best way to melt parmesan cheese is to grate it into delicate tendrils and add it to a dish with residual heat, allowing it to melt without browning. Alternatively, you can melt it in butter first, as the fat helps incorporate the cheese.
Melted parmesan cheese is perfect for gratins, pasta dishes, and toppings or garnishes. It is also used in the Cacio e Pepe and Carbonara recipes.
While canned parmesan cheese certainly has its place in the kitchen, it is not suitable for sauces.

























