Yes, some Armstrong Cheese products are halal as they use microbial enzymes instead of animal-derived rennet. This microbial enzyme is not derived from any animal source, making it permissible for consumption by Muslims. However, not all Armstrong Cheese products are halal; some still use animal-derived rennet, making them haram.

To ensure that the Armstrong Cheese product you are consuming is halal, always check the ingredient list on the packaging. Look for halal certification or ensure that only microbial enzymes are listed and not animal-derived rennet.

And Allah knows best.

Sources:

• IslamQA
• Halal Rule