What’s The Best Way To Store Rennet?

“Hi there! I recently started making cheese at home, and I’m learning about all the different elements like rennet and cultures. I have some rennet now, but I’m not sure what the best way to store it is. I want to make sure it stays fresh and effective for as long as possible. Can you give me some detailed advice on this? Thanks so much!” Cheers, Linda, Boston, USA.

What’s The Best Way To Store Rennet?

Hey Linda, it’s fantastic that you’re venturing into the world of cheese making! Rennet is such an essential aspect of the process, and storing it correctly is really important to ensure your cheeses turn out perfect every time. Whether you’re using liquid, tablet, or powdered rennet, here’s everything you need to know to keep it in top condition.

Understanding Rennet

Before jumping into storage tips, let’s quickly cover what rennet is. Rennet is an enzyme that helps coagulate milk, leading to the formation of curds and whey. It’s available in various forms including liquid, powdered, and tablets, each with its own storage needs. Proper storage is key to maintaining its potency and effectiveness.

Liquid Rennet

Liquid rennet is commonly used in home cheese making because it is easy to measure and use. When it comes to liquid rennet specifically, keeping it potent is paramount.

• Refrigeration: Always store liquid rennet in the refrigerator at around 35-40°F (1.7-4.4°C). A cold environment helps maintain its effectiveness over time.
• Light Exposure: Protect liquid rennet from light. Light can break down the enzymes and reduce its potency. It’s best to store it in a dark bottle or a container that blocks light.
• Seal Tightly: Ensure the bottle is sealed tightly after every use to prevent contaminants from entering and to avoid evaporation, which can alter the concentration.
• Shelf Life: Even if stored properly, liquid rennet typically has a shorter shelf life, usually around 6 to 12 months. Pay attention to the expiration date and test its effectiveness if you’re unsure.

If you’re ever unsure about the potency of your liquid rennet, you can do a quick test by adding a few drops to a small amount of milk at the appropriate temperature. If it coagulates within the expected time, your rennet is still effective.

Powdered Rennet

Powdered rennet is another popular form, praised for its longer shelf life and ease of storage.

• Dry Environment: Store powdered rennet in a cool, dry place. Humidity can cause it to clump and lose effectiveness.
• Refrigeration: While it’s not always necessary, refrigerating powdered rennet can prolong its shelf life. Just make sure it’s in an airtight container to avoid moisture.
• Shelf Life: Powdered rennet often lasts longer than liquid rennet, usually up to 24 months. But always check the packaging for specific recommendations.

Rennet Tablets

Rennet tablets are highly concentrated and easy to dose. They are favored by many for their longer storage potential.

• Storage Container: Keep rennet tablets in their original packaging or an airtight container. Exposure to air can degrade their potency.
• Refrigeration: Like powdered rennet, tablets benefit from being stored in a refrigerator to maintain their effectiveness over time.
• Shelf Life: These can last for years, often 5 years or more, if stored correctly. Always check for expiration dates or any signs of degradation.
• Moisture Control: Ensure the storage area is moisture-free. Even slight dampness can dissolve tablets or cause them to clump.

General Tips for All Types of Rennet

• Consistency Checks: Periodically check rennet for any signs of spoilage, clumping, or a change in odor. If your rennet doesn’t seem to be working as usual, it might be time to replace it.
• Labeling: Clearly label all bottles or containers with purchase and expiration dates. This will help keep track of the freshness of your rennet.
• Backup Supplies: It’s wise to have a backup supply of rennet in case you notice a decline in the potency of your primary stock.

Linda, these tips should help you maintain the potency and freshness of your rennet, ensuring that your cheese-making process goes smoothly. Always remember, proper storage is the key to consistent and delicious cheeses.

Alternative Storage Methods

If you’re short on refrigerator space or need alternative methods, consider these options:

• Freezing: Some cheesemakers freeze liquid rennet to extend its shelf life. Be sure to divide it into smaller, usable portions before freezing to avoid thawing and refreezing, which can degrade the enzyme.
• Vacuum Sealing: This method can be particularly useful for powdered or tablet rennet, helping to keep moisture and air out.
• Desiccant Packs: For powdered forms, including a desiccant pack in the storage container can help control humidity.

Each of these methods has its own pros and cons, so choose the one that best fits your needs and space constraints. Mixing a few techniques can also provide a more comprehensive storage solution.

Common Mistakes to Avoid

Even experienced cheesemakers sometimes make storage mistakes. Here are a few common ones to watch out for:

• Leaving Rennet Out: Forgetting to return rennet to the fridge can quickly reduce its effectiveness, especially if left out overnight.
• Improper Sealing: Not sealing rennet containers properly can expose the enzyme to contaminants and air, leading to faster degradation.
• Overlooking Expiry Dates: Using rennet past its expiration date can lead to inconsistent results. Always check and respect the printed date, especially on liquid rennet.

Avoiding these common pitfalls will ensure that your rennet remains effective and that your cheeses are consistent in texture and flavor.

Testing Rennet’s Potency

It’s always a good idea to periodically test your rennet, especially if it’s been sitting for a while or if you notice any changes in your cheese’s coagulation time.

1. Heat a small amount of milk to around 90°F (32°C).
2. Add a few drops of liquid rennet or a small piece of a rennet tablet.
3. Stir gently and observe. If the milk doesn’t form a firm curd within 30-45 minutes, your rennet might not be as effective anymore.

Regular testing can save you from the disappointment of a failed cheese due to ineffective rennet.

Alright Linda, I hope this detailed rundown on storing rennet helps you keep your cheese-making supplies in peak condition. Feel free to reach out if you have any more questions or run into any other cheese-making challenges!

Final Thoughts…

Linda, thanks again for reaching out with your question. Properly storing rennet, whether liquid, powdered, or tablet, ensures that your cheese-making endeavors are successful and rewarding. Keep tabs on storage conditions and always check for potency before diving into a cheese-making project. Best of luck with your cheese adventures, and may all your cheeses turn out delightful!