Expired Brewer’s Yeast: Reuse It as Fertilizer for Plants

Don’t throw away expired brewer’s yeast — you’d be making a big mistake. You can use it for your plants instead.

Brewer’s yeast is an essential ingredient for making sweets and savory doughs, but it has a short shelf life. When brewer’s yeast goes bad, its color changes from a pleasant beige to a pale gray, or mold-like spots may appear on the surface. If you notice these changes, the yeast is no longer suitable for cooking. However, it may not show any visible changes. In that case, you can test it by dissolving it in a glass of lukewarm water (not hot, as that would kill it) with a teaspoon of sugar.

If the brewer’s yeast is expired, you can’t use it in the kitchen, but it shouldn’t be thrown away. Even when expired, it retains a series of excellent nutrients for plants: you can turn it into a fertilizer.

Brewer’s Yeast Fertilizer for Plants

Here are all the steps to prepare this excellent fertilizer.

Ingredients

• Expired brewer’s yeast
• 1 tablespoon sugar
• 2 liters water
• Container

Procedure

1. Cut a piece of yeast and crumble it, then place it in a large container.
2. Add the water.
3. Finally, add the sugar and mix well.
4. Let it rest for at least 2 hours.
5. Then add another liter of water.

Use this nutrient-rich liquid to water your plants. It provides natural nitrogen, vitamins, and minerals that promote healthy growth and lush foliage.