Colby Jack Marble Cheese: A Tale of Two Colors
Cheese lovers around the world appreciate the diversity of flavors and textures that different types of cheeses offer. One intriguing cheese that often captivates the palate is CoJack Marble Cheese.  Its distinctive two-color appearance and delightful taste make it a popular choice for many cheese enthusiasts. In this blog post, we'll delve into the fascinating process of crafting this cheese and explore the reasons behind its unique dual-toned composition.

The Origin of Colby Jack Marble Cheese

CoJack Marble Cheese is a hybrid creation that combines two classic cheese varieties: Colby and Monterey Jack. The origins of Colby cheese trace back to Wisconsin in the late 19th century, where it was developed by Joseph F. Steinwand. Meanwhile, Monterey Jack cheese originated in California during the same period, with its roots tied to Franciscan friars. The marriage of these two cheeses resulted in the creation of Colby Jack Marble Cheese.

The Crafting Process

Crafting Colby Jack Marble Cheese is an intricate process that requires precision and expertise. Here's a step-by-step guide to how this delectable cheese is made:

Milk Collection and Pasteurization

The process begins with high-quality cow's milk, which is collected and pasteurized to eliminate harmful bacteria while preserving the essential components of the milk.


Starter cultures, which consist of specific bacteria strains, are added to the milk. These cultures kick-start the fermentation process, converting lactose into lactic acid and contributing to the cheese's flavor and texture.

Rennet Addition

Rennet, an enzyme, is introduced to the milk to coagulate it. This results in the formation of curds, which are then cut into smaller pieces.

Curds Formation

The curds are carefully stirred and heated to separate them from the whey. The size and moisture content of the curds play a crucial role in determining the final texture of the cheese.

Colby and Monterey Jack Integration

At this stage, the curds are divided into two portions. One portion is destined to become Colby cheese, which is dyed with annatto for its characteristic orange hue. The other portion remains white, retaining the color of traditional Monterey Jack.

Layering and Pressing

The two differently colored curds are then layered together in a mold, creating the distinctive marbled effect. The cheese is pressed to remove excess whey and to ensure the proper consolidation of the curds.


Colby Jack Marble Cheese is typically aged for several weeks to allow the flavors to develop and the texture to mature. The aging process contributes to the final taste and firmness of the cheese.

Why Two Colors?

The dual-color appearance of Colby Jack Marble Cheese is a result of the intentional combination of Colby and Monterey Jack. The orange hue from the annatto-dyed Colby curds blends harmoniously with the natural white color of Monterey Jack, creating an aesthetically pleasing marbled effect. The two colors also represent the distinct flavor profiles of each cheese, offering a delightful contrast in every bite.

Colby Jack Marble Cheese stands as a testament to the artistry and ingenuity of cheese-making. The fusion of Colby and Monterey Jack, combined with the careful crafting process, results in a cheese that not only tantalizes the taste buds but also captivates the eyes. The marriage of colors and flavors in Colby Jack Marble Cheese is a celebration of the rich traditions and innovations within the world of cheese-making. Try this delightful cheese from Simply Cheese, and you can appreciate the craftsmanship that goes into creating this unique and flavorful masterpiece.