A menorah (more precisely, a Chanukah hanukkiah) is considered “kosher” when it meets a few core halachic (Jewish legal) requirements about its structure and how it is used. There is a lot of room for creativity in design, but these basics need to be in place for the lighting to fulfill the mitzvah properly.

Basic kosher requirements

  • Eight main lights: There must be exactly eight holders for the Chanukah lights, corresponding to the eight nights of Chanukah.
  • Separate shamash: There must be one additional light (the shamash, or helper) that is clearly set apart—usually higher, lower, or off to the side—so it is not counted as one of the eight.
  • Straight line and same height: The eight main lights should form a straight row, and all be on the same level (or an even slant), not in a curve, zigzag, staircase, or random pattern that makes one look more prominent than the others.

Candles, oil, and burn time

  • Type of light: Both wax candles and oil (ideally olive oil) are acceptable for a kosher menorah; many authorities prefer oil because the original Temple miracle involved olive oil.
  • Minimum burn time: Each night’s lights must be able to burn long enough to fulfill the mitzvah—commonly at least about half an hour after nightfall on a regular night, and longer on Friday evening when Chanukah overlaps with Shabbat.
  • Distinct flames: If using a bowl of oil or a creative DIY setup, the flames must be clearly separated so they look like eight individual lights, not one big “bonfire.”

What does not matter as much

  • Material and style: The menorah can be made of metal, glass, clay, wood, or even improvised from small cups or tealights, as long as the halachic structure is correct.
  • Price and beauty: Halachah encourages “beautifying the mitzvah,” so a beautiful or elegant menorah is ideal, but a simple, inexpensive one that meets the rules is just as kosher.
  • Electric versions: Many authorities say electric menorahs are not ideal for fulfilling the mitzvah itself, though they are often used for display or in public spaces; opinions vary, and a rabbi should be consulted for specifics.

Common mistakes that make it non‑kosher

  • Uneven or curved layout: Arranging the eight main lights in an arch, scattered pattern, or stair-step way so they are not in a straight, even line.
  • Shamash not distinct: Making the shamash the same height and in the same line as the others so it is indistinguishable from the eight main lights.
  • Inadequate burn time: Using tiny candles that go out too soon, so the mitzvah period is not covered.

Minimal kosher setups (in a pinch)

  • Row of simple candles: Even a row of regular candles or tea lights on a flat surface can count as a kosher menorah if there are eight, in a straight line, on the same level, plus a separate shamash and enough burn time.
  • Single bowl with wicks: A bowl of oil with eight clearly separated wicks can be kosher, as long as each wick is distinct and appears as its own light rather than merging into one large flame.

Information gathered from public forums or data available on the internet and portrayed here.