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Siman 100 — A Beriah (Whole Creature) Is Never Nullified

בְּרִיָּה אֲפִלּוּ בְּאֶלֶף לֹא בְּטֵלָה

A beriah — a whole creature/unit (an ant, an impure bird, the גיד הנשה, an אבר מן החי, an egg containing a chick) is never nullified, even in a thousand (אפילו באלף) ; the three conditions of a beriah, the גיד that does not forbid by taste but whose fat does, and the worms (תולעים) in vegetables
Structured review, conditions grid, fast memorization


Source: Shulchan Aroukh, Yoreh De'ah ק׳ — 4 seifim
Nossei kelim: ש״ך (Shach) · ט״ז (Taz) · פר״מ (Pri Megadim) · פתחי תשובה (Pithei Teshuva)
Compiled by: הרב יוסף חיים סממה · DAAT
For students who have mastered Levels 1 and 2
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📑 Outline of the synthesis

  1. The axiom: a beriah is never nullified — even in a thousand
  2. The 3 reflex questions: did it have life · forbidden from its formation · is it whole
  3. The grid of the 3 conditions — and their counter-examples
  4. The 5 golden rules
  5. Mnemonic — the "BERIAH" memory aid
  6. The 4 classic pitfalls
  7. Recap of the 4 seifim — one line each
  8. Final flashcard

1. The axiom: a beriah is never nullified — even in a thousand

The starting point:

Siman 100 states a principle of חשיבות (importance): a beriah — a creature or a whole unit — is never nullified, "אֲפִלּוּ בְּאֶלֶף לֹא בְּטֵלָה": even in a thousand times its volume it remains forbidden. Examples (seif 1): an ant (נמלה), an impure bird (עוף טמא), the גיד הנשה, an אבר מן החי, an egg containing a chick (ביצה שיש בה אפרוח). But this exceptional status is rabbinic (דרבנן) (Taz s.k. 1): מן התורה, a beriah is nullified like any prohibition — it is the Sages who were stringent on the mixture.
Levelמן התורהRabbinic (our rule)
Nullification of the beriahNullified like any prohibition (בטלה)Never nullified — אפילו באלף
Reason for the status"לא תאכל אותם" without a measureחשיבות: a complete, important entity
In case of doubt (ספק בריה)ספק דרבנן לקולא → nullified
💡 The marker: this siman does not speak of a measure (60) but of חשיבות. A whole, important entity escapes nullification. But since it is rabbinic, doubt favors leniency: if one does not know whether something truly has beriah status → ספק דרבנן → nullified (with a nafka mina even for the דבר חשוב / ראוי להתכבד of siman 101).

2. The 3 reflex questions

■ DID IT HAVE LIFE? (חיות) — did the thing have life? Only a creature that had חיות can be a beriah — excluding a grain (חטה) of the forbidden substance, which never had life and is nullified normally (seif 1).
↓ we look at the origin of the prohibition
■ FORBIDDEN FROM ITS FORMATION? (אסור מתחילת ברייתו) — was it forbidden from the start of its formation? Excluding a kosher bird that became נבילה and a שור הנסקל: they were not forbidden originally, so no beriah status (seif 1).
↓ we look at integrity
■ IS IT WHOLE? (שלם) — is it whole, such that "אם יחלק אין שמו עליו" (if divided, its name no longer applies)? Excluding חֵלֶב, which stays "חֵלֶב" even when divided. And it must be actually intact; crushed (נתרסקה) → see siman 101:6 (seif 1).

⚖ The 3 cumulative conditions (seif 1)

A thing has beriah status (and thus "is not nullified") only if all three are met: (1) חיות — it had life; (2) אסור מתחילת ברייתו — forbidden from its formation; (3) שלם — whole (its name falls if divided) and actually intact. If even one is missing, it is nullified like any prohibition. Rama: for the גיד הנשה, the essential is only the portion on the כף (the upper joint of the thigh), about four finger-breadths wide; if it is whole, it is called a beriah.

3. The grid of the 3 conditions — and their counter-examples

An absolute must to memorize. Basis: Mehaber seif 1, read with the Taz (s.k. 1-2), the Shach (s.k. 1) and the Pithei Teshuva (s.k. 1).

ConditionCriterionCounter-example (nullified)
1. חיות Had life 🔴 A grain (חטה) of the forbidden substance — never had life
2. אסור מתחילת ברייתו Forbidden from its formation 🔴 Kosher bird that became נבילה · שור הנסקל — not forbidden originally
3. שלם Whole (אם יחלק אין שמו עליו) 🔴 The חֵלֶב — stays "חֵלֶב" even divided
The 5 model examples (seif 1) Meet all 3 conditions 🟢 נמלה · עוף טמא · גיד הנשה · אבר מן החי · ביצה שיש בה אפרוח
A crushed beriah (נתרסקה) No longer whole → see siman 101:6 🟡 Loses beriah status → nullified
A melted beriah (נמוח) Loses its חשיבות, but 60 is required 🟡 60 required; in doubt, leniency (Taz s.k. 5)
Doubt: is it a beriah? ספק דרבנן לקולא 🟢 Nullified (the "not nullified" status is rabbinic)
📌 Key reading: to decide whether something "is not nullified," pass it through the 3 filters: lifeforbidden from the startwhole. If one fails, we revert to ordinary nullification (majority or 60). And since all this is rabbinic, doubt leans toward leniency.

4. The 5 golden rules

  1. "בריה אפילו באלף לא בטלה". A beriah is never nullified, even in a thousand — it is a חשיבות, and it is rabbinic (Mehaber seif 1; Taz s.k. 1).
  2. 3 cumulative conditions: חיות · אסור מתחילת ברייתו · שלם. If one is missing → nullified like any prohibition (Mehaber seif 1).
  3. ספק בריה → nullified. Doubt about beriah status is a ספק דרבנן → toward leniency (Taz s.k. 1).
  4. גיד הנשה: no taste, but its fat forbids. "אין בגידים בנותן טעם" → the nerve does not forbid the mixture by taste; its fat (שומנו) does → one needs 60 against it (Mehaber seif 2).
  5. A lost beriah or ג׳ תולעים → we separate. A beriah lost in the broth → all forbidden (it cannot be removed); but separable elements (filtered water, washed meat) remain permitted (Mehaber seif 3-4).

5. Mnemonic — the "BERIAH" memory aid

"ב-ר-י-ה" — the word בריה itself
The ladder of the cooked beriah (seif 2-4)

6. The 4 classic pitfalls

❌ Pitfall 1 — Thinking a beriah "is not nullified by the Torah": no — מן התורה, a beriah is nullified like any prohibition. Its status "אפילו באלף לא בטלה" is rabbinic (Taz s.k. 1), a חשיבות decreed by the Sages. Practical consequence: in case of doubt (is it really a beriah?), we rule nullified (ספק דרבנן toward leniency). Do not treat a beriah as an unrootable Torah prohibition.
❌ Pitfall 2 — Forgetting the 3 conditions: not everything whole is a beriah. One must cumulate חיות + אסור מתחילת ברייתו + שלם. A grain (no life), a kosher bird that became נבילה or a שור הנסקל (not forbidden originally), חֵלֶב (stays "חֵלֶב" divided) — none is a beriah and all are nullified. Borderline case: the ant permitted before it emerged — a debate (Pithei Teshuva s.k. 1, Krof vs. Tour HaEven).
❌ Pitfall 3 — The גיד הנשה and its fat: the גיד הנשה is a beriah (it had חיות — Shach s.k. 1), hence not nullified. But note: the nerve itself has no taste ("אין בגידים בנותן טעם"), so it does not forbid the mixture by taste; it is its fat (שומנו) that forbids → one needs 60 against the fat to permit the broth. A thigh (ירך) cooked with its גיד: recognized → discard it, the rest is permitted if there is 60 against the fat; unrecognized → the pieces are forbidden, but the broth is permitted if there is 60 against the fat. A melted (נמוח) גיד → still 60 against it.
❌ Pitfall 4 — The lost beriah and the ג׳ תולעים: a beriah that fell and was lost (נאבדה) in the broth → all forbidden: it is not nullified and cannot be removed (a flea / פרעוש fallen into the dish, able to permeate → forbidden, Pithei Teshuva s.k. 3). By contrast, for the ג׳ תולעים found in cooked vegetables: the vegetables are forbidden (the three establish a חזקה — Taz s.k. 6), but the cooking water is filtered (מסננן) → permitted, and the meat is washed and checked → permitted (the worms are separable; see siman 84).

For the halacha le-ma'aseh, consult your Rav.

7. Recap of the 4 seifim — one line each

SeifTopicThe essential
1The beriah and its 3 conditionsA beriah (ant, impure bird, גיד הנשה, אבר מן החי, egg with a chick) → אפילו באלף לא בטלה. Beriah status only if: (1) it had life — not a grain; (2) forbidden from its formation — not a kosher bird turned נבילה nor a שור הנסקל; (3) whole (אם יחלק אין שמו עליו) — not חֵלֶב — and actually intact. Rama: גיד הנשה = the portion on the כף, ~4 fingers.
2A cooked beriah; the גיד and its fatA beriah cooked with permitted food: unrecognized → all forbidden, the broth נותן טעם; recognized → discard it, and 60 against it is needed. Exception גיד הנשה: no taste (אין בגידים בנ״ט), but its fat forbids → 60 against it. Thigh + גיד: recognized → discard, the rest permitted if there is 60 against the fat; unrecognized → the pieces forbidden, the broth permitted if there is 60 against the fat. A melted (נמוח) גיד → also 60 against it.
3A beriah lost in the brothA pot of broth into which a beriah fell and was lost (נאבדה) → all forbidden: it is not nullified and cannot be removed.
4ג׳ תולעים in vegetablesCooked vegetables in which three worms (ג׳ תולעים) were found: the vegetables are forbidden, but the cooking water (מי השלקות) is filtered (מסננן) → permitted; likewise the meat is washed and checked (ירחצנו ויבדקנו) → permitted.

8. Final flashcard

QuestionReflex answerSource
A beriah is mixed in — is it nullified?Never: אפילו באלף לא בטלה (rabbinic status)Mehaber seif 1; Taz s.k. 1
When does beriah status apply?If חיות + אסור מתחילת ברייתו + שלם (cumulative)Mehaber seif 1
We doubt it is a beriah?Nullified (ספק דרבנן toward leniency)Taz s.k. 1
A cooked beriah, unrecognized?All forbidden; the broth נותן טעםMehaber seif 2
A cooked beriah, recognized?Discard it; 60 against it for the restMehaber seif 2
גיד הנשה in the dish?No taste (אין בגידים בנ״ט); 60 against its fat (שומנו)Mehaber seif 2; Shach s.k. 1
A beriah fallen and lost in the broth?All forbidden (it cannot be removed)Mehaber seif 3
ג׳ תולעים in cooked vegetables?Vegetables forbidden; filtered water and washed meat → permittedMehaber seif 4; Taz s.k. 6

⚖ The reflex in 3 questions

  1. Is it a beriah? 3 conditions: life · forbidden from the start · whole. If yes → אפילו באלף לא בטלה; if in doubt → nullified.
  2. Is it recognizable? Recognized → discard it (60 for the rest); unrecognized → all forbidden. גיד: no taste, but 60 against its fat.
  3. Is it separable? A lost beriah → all forbidden; but filtered water and washed meat (ג׳ תולעים) → permitted.
For the halacha le-ma'aseh, consult your Rav.

🎓 Recap of the study path

LevelContentAcquired
🌱 Level 1 — Base Text of the 4 seifim, translation, clear tables Overall understanding
Level 2 — Lamdan Yesod of בריה אפילו באלף (חשיבות, rabbinic), the 3 conditions and their debates, the גיד and אין בגידים בנ״ט, the חזקה of ג׳ תולעים In-depth study
Level 3 — Synthesis Grid of the 3 conditions, golden rules, mnemonic, pitfalls, recap of the seifim Practical mastery + review
💡 Suggested next steps:
📖 Sources of this siman on Sefaria:
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סימן ק׳ · Level 3 — Synthesis / Review · דין בריה שאינה בטלה
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