How long does walnut soak in vinegar? Is it in a glass jar or a plastic jar? Can I only soak in plastic cans?

Walnuts soaked in vinegar usually need to be soaked for 1-2 months, so that vinegar can fully penetrate into walnuts and extract their taste and nutrients. As for the choice of containers, it is generally recommended to use glass jars, because glass jars will not react chemically with vinegar, and they can ensure purity and no odor during brewing. If you only have a plastic can, it can be guaranteed to be food-grade and will not produce harmful substances because of the acidity of vinegar. However, it should be noted that plastic cans may have an odor that affects the final taste.

In addition, walnuts should be completely soaked in vinegar when brewing, and the jar mouth should be sealed to prevent air from entering and causing mildew. In the brewing process, you can shake the jar every once in a while (for example, once a week) to help vinegar penetrate into walnuts better.

Finally, walnuts soaked in vinegar should be stored in a cool, ventilated and dry place to avoid direct sunlight and high temperature.