How To Use Alum To Make Pickles Crisp: A Guide For Beginners

How To Quick Pickle Any Summer Vegetable Recipe Quick pickle


Pickles are a popular food item in many cultures, and they come in a variety of forms. From sweet to sour, pickles can be made using different ingredients and methods. However, one of the biggest challenges when making pickles is getting them to stay crisp. This is where alum comes in! Alum is a natural ingredient that can help keep pickles crisp and crunchy. In this article, we will discuss how to use alum to make pickles crisp.

What is Alum?

Alum, also known as potassium aluminum sulfate, is a natural ingredient that has been used in cooking for centuries. It is a white, crystalline powder that is commonly found in spice blends and pickling recipes. Alum is known for its ability to firm up vegetables and fruits, making them crisp and crunchy.

Why Use Alum in Pickling?

When making pickles, it is important to keep them crisp and crunchy. Over time, pickles can become soft and mushy, which is not very appetizing. Alum helps to keep pickles firm and crisp by preventing the cell walls of the vegetables from breaking down. This allows the pickles to retain their texture and crunchiness for a longer period of time.

How to Use Alum in Pickling

Using alum in pickling is easy. Simply add a small amount of alum to your pickling solution. The amount of alum you need will depend on the size of your recipe. As a general rule, use about 1/8 teaspoon of alum for every pint of pickles. You can add the alum directly to the pickling solution, or you can dissolve it in water first and then add it to the solution.

Precautions when Using Alum

While alum is generally safe to use in pickling, there are some precautions you should take. First, be sure to use food-grade alum, which is safe for consumption. Do not use industrial-grade alum, which is not safe for consumption. Second, do not use too much alum, as it can make the pickles taste bitter. Follow the recommended amount for your recipe. Finally, be sure to rinse the pickles well after pickling to remove any excess alum.

Other Tips for Crisp Pickles

In addition to using alum, there are other tips you can follow to ensure your pickles stay crisp. First, use fresh, firm vegetables. Soft or overripe vegetables will not stay crisp, no matter how much alum you use. Second, soak the vegetables in ice water before pickling. This helps to firm up the vegetables and keep them crisp. Finally, be sure to store the pickles in a cool, dark place. Heat and light can cause the pickles to soften and lose their crunchiness.


Alum is a natural ingredient that can help keep pickles crisp and crunchy. By adding a small amount of alum to your pickling solution, you can ensure that your pickles stay firm and retain their texture for a longer period of time. Be sure to follow the precautions when using alum, and use other tips to ensure your pickles stay crisp. Happy pickling!