What is Glatt Kosher?
Also spelled / known as: Glatt, Chalak, Smooth lung, Strictly kosher
In brief
Glatt kosher (Yiddish for 'smooth') refers to meat from animals whose lungs were found to be free of adhesions upon inspection — a stricter standard than baseline kosher meat.
Glatt Kosher explained
Glatt kosher originally referred specifically to meat from animals whose lungs were smooth and free of any adhesions (sirchos) when inspected after shechita (kosher slaughter). In Sephardic tradition, this standard is called 'chalak' (Hebrew for 'smooth'). In practice, the term 'glatt kosher' has become a general indicator of high-quality, strictly kosher food beyond just meat. Today, many restaurants advertise themselves as 'glatt kosher' to signal adherence to the highest standards.
Real-world examples
A butcher shop labeled 'Glatt Kosher Meats Only'
Restaurant storefronts proclaiming 'Glatt Kosher Under XYZ Supervision'
Sephardic communities use the term 'chalak' or 'chalak Beit Yosef' instead
Many kosher caterers specify glatt kosher on wedding menus
Context & nuance
Technically, glatt kosher is a standard for meat only — it refers to the smoothness of the animal's lungs. Because lung adhesions required rabbinic inspection and case-by-case rulings, some communities chose to only accept meat that was clearly smooth ('glatt'), avoiding any uncertainty. Over time, 'glatt kosher' became shorthand in colloquial usage for 'extra-strict kosher,' even applying to non-meat contexts where the term is technically inaccurate.
Frequently asked questions
- What does glatt kosher mean?
- Glatt kosher (Yiddish for 'smooth') refers to meat from animals whose lungs were found to be free of adhesions when inspected after kosher slaughter. It's a stricter standard than baseline kosher meat.
- Is all kosher meat glatt?
- No. Baseline kosher meat can include animals whose lungs had minor adhesions that a rabbi deemed permissible. Glatt kosher meat specifically comes from animals with completely smooth lungs, eliminating any need for case-by-case rulings.
- Does glatt kosher apply to chicken or fish?
- Technically, no — the term refers specifically to the lung inspection process for large animals (beef, lamb, etc.). Chicken and fish don't have the same lung adhesion concerns. However, 'glatt kosher' is sometimes used colloquially to mean 'strictly kosher' in general.
- What's the Sephardic term for glatt kosher?
- In Sephardic tradition, this standard is called 'chalak' (Hebrew for 'smooth'), often specified as 'chalak Beit Yosef' — following the stricter standards of the Shulchan Aruch compiled by Rabbi Yosef Karo.
Cities where Glatt Kosher matters most
Find verified kosher listings in these communities where glatt kosher is especially relevant.
Where Glatt Kosher shows up
These business categories are where you'll encounter glatt kosher most often.
Related terms
Shechita
Shechita is the Jewish method of ritual slaughter that renders an animal kosher — requiring a trained shochet to sever the trachea and esophagus with a single, swift cut using a perfectly smooth blade.
Kashrut
Kashrut is the body of Jewish dietary law derived from the Torah, defining which foods are permitted (kosher) and forbidden (treif), how animals must be slaughtered, and how meat and dairy must be kept separate.
Hechsher
A hechsher is the symbol printed on a kosher product or displayed by a kosher establishment indicating which rabbinic agency has certified it as meeting kosher standards.
Fleishig
Fleishig (Yiddish for 'meaty') refers to kosher foods containing meat or poultry — these cannot be eaten with dairy and require a waiting period before consuming dairy afterward.
Looking for glatt kosher listings?
Browse verified kosher businesses on Kosher Connect and filter by certification, cholov yisroel, and other halachic standards.