One of the key steps for any facility seeking kosher certification is kasherization. This process ensures that equipment and installations are properly prepared according to kosher standards, removing any trace of previously used non-kosher ingredients.
Why Is It Necessary?
When food is cooked, its flavor and essence are absorbed into the walls of the cooking vessel. This means that a pot used to cook non-kosher meat, even if cleaned, retains microscopic traces. If kosher meat is later cooked in that same pot without prior kasherization, the food becomes non-kosher due to contamination.
Which Materials Can Be Kasherized?
Certain materials can be kasherized — that is, cleaned and purified through specific processes involving heat or immersion — including:
- Wood
- Metal
- Stone
However, some materials cannot be kasherized due to their porosity or structure, such as:
- Clay
- Porcelain
Glass is more complex. Some authorities consider it a non-absorbent material, meaning it does not require kasherization. Others treat it like metal — which must be kasherized — or like clay — which cannot be kasherized at all.
A Critical Step Toward Certification
For any company looking to certify with Aleph Kosher, kasherization is a crucial phase that must be conducted under professional supervision. It ensures that production processes meet the highest standards of purity and kosher compliance, building trust in both local and international markets.
