As an expert sommelier and brewer, I can confidently say that yeast can still be good if it freezes. Freezing is actually a great way to store yeast for an extended period of time, whether it is opened or unopened. However, there are a few important things to keep in mind when freezing yeast.
First, it is crucial to store dry yeast in an airtight container before placing it in the freezer. This will prevent any moisture or air from getting into the container and potentially damaging the yeast. Moisture and air can lead to the growth of harmful bacteria or mold, which can ruin the yeast.
When it comes to storing dry yeast in the freezer, it is recommended to use a freezer-safe container or a ziplock bag. This will provide an extra layer of protection against moisture and air. It is also a good idea to label the container with the date of freezing, as this will help you keep track of the yeast's freshness.
In terms of storage duration, dry yeast can be kept in the freezer for up to six months. Beyond that, the yeast may start to lose its potency and effectiveness. Therefore, it is advisable to use the frozen yeast within this timeframe for optimal results.
On the other hand, it is important to note that fresh yeast should not be frozen. Fresh yeast, also known as cake yeast or compressed yeast, contains a higher water content compared to dry yeast. Freezing fresh yeast can cause the water in the yeast cells to expand and burst, resulting in a loss of viability. Therefore, if you have fresh yeast, it is best to use it immediately or store it in the refrigerator for a few weeks.
In my personal experience, I have successfully stored dry yeast in the freezer for several months without any issues. I always make sure to transfer the yeast into an airtight container before freezing and label it with the date. This allows me to easily keep track of the yeast's freshness and use it in a timely manner.
Yes, yeast can still be good if it freezes. Dry yeast can be stored in the freezer for up to six months, as long as it is placed in an airtight container to protect it from moisture and air. Fresh yeast, however, should not be frozen as it contains a higher water content that can lead to a loss of viability. By following these guidelines, you can confidently freeze yeast and have it ready for your baking or brewing needs.