Kahnfections, Mission
24 people recommend, 1 warns against itvia r/sanfrancisco, r/AskSF27 comments cited below
What people say, in short
Most diners recommend Kahnfections, and many praise its biscuit breakfast sandwich, with a few ranking it above Devil's Teeth. Many diners name the Mission location, and one diner finds it bordering on too rich but still enjoys it. A few diners raise caveats: one says the coffee is weak, one says the biscuit falls apart and is too greasy, and one says it holds together only when wrapped in foil and could use more flavor.
Address
Kahnfections, 3321 20th St, San Francisco, CA 94110
Nearby on this map
Other places on this map closest to Kahnfections, Mission, as the crow flies.
The evidence
Every point below is paraphrased from a real public comment, ordered by how much the community engaged with it. Caveats and negatives are kept in — follow any link to read the original for yourself.
- Recommendsu/ofdm in r/sanfrancisco · Feb 2026taste
Says this place has better biscuits, more customization, and a shorter line than the other spot.
- Recommendsu/dontdoityouwilllose in r/AskSF · Jun 2025
Includes this in a short list of good breakfast options.
- Mixedu/straws in r/sanfrancisco · Feb 2026taste
Says the food is amazing but the coffee is weak enough that they go elsewhere for coffee.
- Recommendsu/sanfrangusto in r/sanfrancisco · Feb 2025taste
Ranks Kahnfections' biscuit sandwich as the city's best and says skip the other two.
- Recommendsu/josueluis in r/sanfrancisco · Feb 2025taste
Calls Kahnfections in the Mission the top breakfast sandwich and worth a detour.
- Recommendsu/oochiewallyWallyserb in r/sanfrancisco · Feb 2026taste
Alternates between two spots, finds this one bordering on too rich but enjoyable, and still picks one up each week.
- Recommendsu/WaltAndJD in r/AskSF · Apr 2026taste
Says the Mission spot opens early on weekdays and that its biscuit sandwich and pastries are comparable to Devil's Teeth's.
- Recommendsu/Dangerous_Ganache650 in r/sanfrancisco · Feb 2026taste
Recommends trying its biscuit sandwich, which they rate above the other spot's.
Show all 27 cited comments
- Recommendsu/Powerful-Display5837 in r/AskSF · Apr 2026taste
Calls Kahnfections amazing for a biscuit sandwich, as an alternative to plates and pancakes.
- Recommendsu/Chicken-n-Biscuits in r/AskSF · Oct 2025
Names Kahnfection in the Mission as the answer.
- Recommendsu/tceeha in r/AskSF · Oct 2025
Suggests this place's biscuit sandwich as a breakfast choice in the Mission.
- Recommendsu/denimhearts in r/AskSF · Jul 2024taste
Says they love Kahnfection too, as another well-trodden pick.
- Recommendsu/liquid_handler in r/AskSF · Apr 2026
Gives a one-word recommendation of Kahnfections in answer to the question.
- Recommendsu/Suitsbleforlisteners in r/AskSF · Jul 2026
Named among the commenter's breakfast picks with no further detail.
- Recommendsu/wolf771 in r/sanfrancisco · Feb 2026
Agrees that Kahnfections is the better choice.
- Recommendsu/Fun_Jicama6554 in r/AskSF · Apr 2025
Thinks biscuit breakfast sandwich fans would enjoy this spot, and says its hot chocolate is excellent.
- Recommendsu/Difficult-Sky991 in r/sanfrancisco · Feb 2025
Recommends Kahnfections, calling its biscuit sandwich the best in the city.
- Recommendsu/JSA607 in r/sanfrancisco · Jan 2025
Suggests Kahnfections as a pick in the Mission.
- Recommendsu/johnwatersfan in r/AskSF · Aug 2024taste
Calls Kahnfections' breakfast sandwiches top in the city.
- Recommendsu/SalamanderExtra7982 in r/AskSF · Jul 2024taste
Says they visited Kahnfection recently and found it very good.
- Recommendsu/Initial_Snow_7606 in r/AskSF · Jul 2026taste
Points to Arsicault for pastries and Dolores Deluxe for cookies, plus a sourdough tip.
- Recommendsu/No_Percentage587 in r/AskSF · Oct 2025taste
Recommends Kahnfection, saying it has plenty of icing.
- Recommendsu/crazyprotein in r/sanfrancisco · Sep 2025taste
Calls this place their favorite for breakfast sandwiches, praising the biscuits used in them.
- Recommendsu/neBular_cipHer in r/AskSF · Jun 2025
Names this as a breakfast suggestion.
- Recommendsu/Hot-Apartment8745 in r/AskSF · Jun 2025
Gives this place a thumbs-up.
- Caveatu/toomuchsvu in r/AskSF · Jul 2024taste
Dislikes Kahnfection: the biscuit fell apart, it was too greasy, and not magical; gave up after a few bites.
- Mixedu/Immediate-Abalone-17 in r/AskSF · Jul 2024taste
Concedes the biscuit only holds together if foil-wrapped, and that it is greasy with little flavor, but still loves it.
Also on
Kahnfections, Mission is on another map too, with what people said about it there.
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Freshness
Details last checked 14 Nov 2026. Recommendations reflect what people said at the time; confirm current details before you go.