The Fermentation Bifurcation
🎞️ S9 E22 🤔 Caution

The Big Bang Theory

Is The Big Bang Theory S9 E22 OK for kids?

The Fermentation Bifurcation

The gang goes to a wine bar and runs into Penny's old boyfriend, Zack. Also, Bernadette gets stuck spending the evening with Sheldon when she can't go wine tasting with the group, and things don't go as planned when Koothrappali introduces his new girlfriend, Claire.

📺 Where to watch

Netflix, HBO or Disney+ — catalogs differ by country.

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🛒 Where to buy

Digital seasons or a box set to keep.

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Content guide

👊 Violence
💋 Sex
🙊 Language
⭐ Overall

Preview first — about 10+

The Big Bang Theory S9 E22, “The Fermentation Bifurcation”, scores 2/5 for violence, 3/5 for sex and 2/5 for language, for an overall kid-rating of 3/5 — Preview first — about 10+. The gang goes to a wine bar and runs into Penny's old boyfriend, Zack. Also, Bernadette gets stuck spending the evening with Sheldon when she can't go wine tasting with the group, and things don't go as planned when Koothrappali introduces his new girlfriend, Claire.

Across the episode we counted 6 flagged moments in 3 themes: Sex & hookups (3); Violence & injury (1); Alcohol & drugs (2). Every moment below is either a direct quote from the episode transcript or a short description of what happens on screen, so you can decide before you press play.

Parents need to know

Age 10+

Violence, sex talk, drinking in live-action sitcom.

Parents need to know that The Big Bang Theory S9 E22, "The Fermentation Bifurcation", is a live-action sitcom episode. The series is known for more innuendo than the science jokes suggest, but rarely explicit. Sits in the gray area mainly on violence & injury (explicit, in dialogue). Violence is mild but includes Bernadette says, "I stab it in the middle eye". Sexual content includes Howard says, "Well, we’re out. Bernie can’t drink ’cause she’s pregnant. And she’s pregnant because we…". Some mild language appears in the dialogue. Characters drink or talk about alcohol and drugs — Penny says, "Oh, hey, if you guys are free this weekend, I won a night of wine tasting from work". Every flagged moment below is a direct quote from the transcript or a short description of what happens on screen.

Watch for — every moment, theme by theme

Sex & hookups 3 moments

How Sex & hookups shows up in The Big Bang Theory S9 E22:

  • Caution
    Howard Well, we’re out. Bernie can’t drink ’cause she’s pregnant. And she’s pregnant because we had sex. And we had sex because, well, come on.
  • Caution
    Howard Okay. Everything’s hooked up. We’re ready.
  • Mild
    Penny Oh, Leonard mumbles it when he wants sex to last longer.

Violence & injury 1 moment

How Violence & injury shows up in The Big Bang Theory S9 E22:

  • Too much
    Bernadette I stab it in the middle eye.

Alcohol & drugs 2 moments

How Alcohol & drugs shows up in The Big Bang Theory S9 E22:

  • Mild
    Penny Oh, hey, if you guys are free this weekend, I won a night of wine tasting from work.
  • Mild
    Sheldon Wine again? Yeah, no, thank you. I like my grapes the old-fashioned way, in a juice box.

What to watch in The Big Bang Theory · Season 9 guide

Watch With The Kids · Your kids — your rules! · Informal parent guidance, not an official rating.