Pudding powder typically has a long shelf life and can be stored for up to 1-2 years in a cool, dry place. It is important to check the expiration date on the packaging and follow any specific storage instructions provided by the manufacturer. Once prepared, pudding made from the powder should be consumed within a few days if stored in the refrigerator. **

Cocoa powder can last for up to 2-3 years if stored in a cool, dry place and in an airtight container. It is important to keep it away from moisture and heat, as these can cause the cocoa powder to spoil more quickly. Over time, the flavor and quality of the cocoa powder may diminish, so it is best to use it within the recommended time frame for the best results. **

Litmus powder is durable for a long time if stored properly. When kept in a cool, dry place and away from direct sunlight, litmus powder can remain effective for several years. However, over time it may lose its potency and accuracy, so it is best to check the expiration date on the packaging and replace it if necessary. **

Dried spirulina powder can last for up to 2 years if stored in a cool, dry place away from direct sunlight. It is important to keep the powder tightly sealed in an airtight container to prevent moisture from getting in, which can cause the powder to clump and spoil. Checking the expiration date on the packaging can also provide guidance on the shelf life of the dried spirulina powder. **

Pudding powder is typically shelf-stable for an extended period of time, usually around 1-2 years. This is because the powder is dehydrated and does not contain any perishable ingredients that would spoil quickly. It is important to check the expiration date on the packaging and store the pudding powder in a cool, dry place to ensure its quality and freshness for as long as possible. **

Protein powder typically lasts for about 6-12 months after opening, depending on the type of protein and how it is stored. It is important to keep the protein powder in a cool, dry place and tightly sealed to maintain its freshness and effectiveness. Checking the expiration date on the packaging can also give you an idea of how long the protein powder will last after opening. **

No, long-expired semolina pudding powder is not safe to eat. Consuming expired food products can lead to food poisoning, as the ingredients may have degraded and harmful bacteria may have grown. It is important to always check the expiration date on food products and discard them if they are past their expiration date. **

The shelf life of baking powder is typically around 6 months to 1 year if stored in a cool, dry place. Over time, baking powder can lose its effectiveness and potency, so it's important to check the expiration date before using it in recipes. To test if baking powder is still active, you can mix a small amount with hot water - if it bubbles and fizzes, it's still good to use. **