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    Sine Wave Cafe

    5.0 (47 reviews)
    Open 7:00 am - 2:00 pm
    Updated 3 weeks ago

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    What's the vibe?
    Outdoor seating
    Dogs allowed

    Recommended Reviews - Sine Wave Cafe

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    Cinnamon cold foam cold brew (fall special)
    Sean H.

    This place is a cute new coffee shop tucked away in the school zone section of OB. I came here on a Sunday after pickleball and needed caffeine and food. I got a cold brew with cinnamon cold foam and it hit the spot. Their main food/ signature seemed to be their toasts so we tried two: Avocado toast - a bit pricey but the bread was amazing and the eggs were excellent! They had cool golden utensils to make it a bit easier to eat. Egg salad toast - this was recommended and I see why! A very comforting balance of savory and fresh flavor, not too heavy not too light. A few people working on their laptops and a few tables outside as well, a very chill spot.

    Egg Salad Toast, Deluxe Avocado Toast
    Reina N.

    This place is so cute and DELICIOUS! Got their iced vanilla latte, brown sugar latte, egg salad toast, and avocado deluxe toast. It was seriously incredible. I consider myself a coffee snob and this place surpassed expectations. The service was quick and easy too!

    Partial view of the suite front
    Emmett T.

    While departing the OB neighborhood on a couple of occasions earlier this summer, I noticed Sine Wave Cafe which was located on the same block of Santa Monica Ave as the US Post Office. The cafe occupied a middle suite between a smoke shop to its left and a psychic to its right. Diagonal parking spaces were available up and down both sides of the street. Countertop seating was on the right side while several tables were set up on the left side if you wanted to hang out. There were also two outdoor tables on the front patio. During the time of my visit, the menu consisted of calzones, oats, and toast for food. Coffee and tea were the primary beverages. It was near closing so I ordered a Breakfast Calzone and a Matcha Latte. Egg, spinach, mushroom, and mozzarella made up the filling inside the pastry. A small cup of tomato jam was provided on the side for dipping. The latte was served cold with ice. The calzone was rather small for the $5 price. The kitchen initially underheated the product and took it back from me for another round in the oven. As compensation for the trouble, they offered a complimentary brown butter chocolate chip cookie which was a nice gesture. The cookie tasted better than the calzone, perhaps because of my sweet tooth. The green colored drink was fairly standard and had a good amount of matcha flavor.

    Outside
    Jack M.

    This is a terrific locally owned coffeeshop. The shop has a lot of good stuff to offer. I had an iced coffee with milk and a couple of their breakfast calzones: one with bacon on and eggs and the other with veggies and eggs. You can get a regular coffee and two small calzones for $10. The iced coffee was great. The coffee offered a great medium coffee flavor and was smooth and rich. The calzone are made in house by the owner. I like that they are crispy in nature and filled nicely with their tasty filling. I enjoyed both of them, but I was most fond of the bacon and eggs given the savory flavor. Make sure you try their tomato jam. It goes very well with these little calzones. The service was very friendly and welcoming. They offer inside and outside seating. They also over baked goods and a variety of different toasts.

    Melany M.

    Cute place, really good matcha, really good homemade banana bread that the sweet barista heated up for me! I WFH here and met a few other employees along with the owner, they are all very sweet and seem down to Earth - very chill granola vibes I love it I'll be back

    We ordered flat white, drip coffee, bread with almond butter, strawberry and banana and calzone. We enjoyed everything! Nice staff in a cute neighborhood.

    Joanne R.

    We ate here twice while staying in OB for a staycation, and I can't wait to drive back down to not only eat here again, but sit and soak in the chill vibe. It felt like home the second we walked in, and they remembered us when we came in the next day. I've already tried to replicate the toasted coconut cappuccino at home, but I just can't do it. The toast with tomato jelly was a suggestion that was not on the menu, and I've been craving that ever since as well. Every ingredient was so fresh! The food was made with such care and attention to detail! May you be mobbed every day of the week, Sine Cafe! See you again soon!

    Breakfast Bacon Calzone with Tomato Jam
    Jordyn S.

    Really cute new coffee shop in OB! Has a ton of seating inside for working remotely. Service was so great and they even gave my friend a free coffee that they were testing out recipes for! I was excited to see the breakfast bacon calzone on the menu because I'm always looking for unique food items at coffee shops to fuel me while I'm working. You could taste the herbs in the crust and the tomato jam on the side was such a fun, different sauce choice to pair it with. Definitely recommend if you're in the OB area!

    coconut drink (i forget what exactly)
    Abigail E.

    Came in to study while my friends did some work on a Friday morning. Maybe the best playlist i've ever heard in a coffee shop, super cute and classic decor, very good coffee and great service. I didn't get food but my friend got a calzone and loved it, and the food that the people next to us were having looked delicious, the banana bread in particular smelling amazing. I didn't get the baristas name but he was super friendly and even offered me a complimentary coconut coffee drink that they were workshopping as I was about to leave and it was delicious. I hope this place becomes a local staple, I will absolutely be back.

    Iced Latte
    Sydni S.

    I LOVE this new spot in OB and it's definitely worth checking out if you're looking for a cute cafe. I came in on a Friday morning to get some work done and there was plenty of open seating inside! I got an iced latte with oat milk and honey which was reasonably priced and my friend got their breakfast calzone which was only $5 and the perfect snack. We stayed for around 2 hours and got some work done and I will definitely be returning. I loved the playlist they had on and the employees were super nice and seemed excited about their new spot. They've only been open for about a month so it still felt like a hidden gem, but I'm sure they won't stay secret for long!

    Iced oat milk latte, salmon toast
    Viviana L.

    Leaving this review months later, but I still think about visiting again! Went on two different occasions and service was great both times. Barista was very patient while I made my decision and my drink was out quickly. The inside is well designed and you can tell a lot of thought went into it, down to the fresh flowers at every table. Quality drinks and food that I wouldn't hesitate recommending.

    strawberry matcha
    kira l.

    such a great local coffee shop in OB!! a great quiet space for work. the strawberry matcha is INCREDIBLE!! even my friend who doesn't like matcha loved it!!! the workers are all super sweet and everything is super tasty. the place itself is so cute and aesthetic. i will be back!!

    Deluxe avocado toast
    Elyse B.

    Such a cute little coffee shop. Coffee tasted amazing, food was also great. The two people working there were so kind, welcoming, and friendly. Highly recommend

    Deluxe Avocado Toast

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    4 months ago

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    17 days ago

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    Hokulani N.

    Thanks Crystal!!

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    17 days ago

    Great place! Drinks, food are both fantastic. Very welcoming! Met owner and his father.

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    Hokulani N.

    thank you for the review!

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    8 months ago

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    Hokulani N.

    Thank you Sean! So glad you liked everything

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    2 months ago

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    9 months ago

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    1 year ago

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    7 months ago

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    Hokulani N.

    Thank you Melany! SO nice meeting you :)

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    8 months ago

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    1 month ago

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    21 days ago

    The most friendly staff, and one of the best matchas in OB. Vibe is always great inside with pleanty of seating :)

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    21 days ago

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    Hokulani N.

    thank you claire!

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    11 months ago

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    Hokulani N.

    Thank you Joanne! We can’t wait to see you again :)

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    28 days ago

    Great customer service and great quality coffee! They 4 til 4 beans which are very yummy!

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    Hokulani N.

    thank you shriya!

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    28 days ago

    Amazing!!! I ordered the mango matcha latte and it was SO GOOD will be ordering again.

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    1 year ago

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    1 year ago

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    1 year ago

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    Hokulani N.

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    6 months ago

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    Hokulani N.

    Thank you so much! we are so glad you liked our food and drinks :)

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    1 month ago

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    10 months ago

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    10 months ago

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    Hokulani N.

    Thanks so much!

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    1 year ago

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    7 months ago

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    4 months ago

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    Hokulani N.

    Thank you Mary!

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    10 months ago

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    Hokulani N.

    Thank you so much! This review made our day :)

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    1 year ago

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    1 year ago

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    7 months ago

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    Hokulani N.

    Thank you so much for the review! so happy you enjoyed everything

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    7 months ago

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    Hokulani N.

    Thank you so much for your support!!

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    1 year ago

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    1 year ago

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    10 months ago

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    Hokulani N.

    Thank you so much for the review! We really appreciate the support <3

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    11 months ago

    The best coffee and the best service!! The food is amazing! The vibe of the cafe is so awesome! The events being thrown are so fun too!

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    9 months ago

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    Hokulani N.

    Thank you!!! Your support means so much to us :)

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    1 year ago

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    1 year ago

    Foods awesome coffee great but the new owners are amazing! Brand new place new owners great new menu

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    Page 1 of 2

    Ask the Community - Sine Wave Cafe

    Lazy Eye Coffee

    Lazy Eye Coffee

    4.7
    (134 reviews)
    1.4 mi
    $$

    Don't blink or you'll miss this teeny, adorable coffee cart…read more My fiancé and I were craving a cup of coffee after a leisurely stroll along Mission Beach on a random Saturday morning....where to go that isn't Starbucks? Lazy Eye to the rescue! Lazy Eye is sandwiched between two buildings with one table out front. It's a to-go place. When you're that close to the beach, who wants to be inside anyway? While they do offer regular brewed coffee, I'm pretty certain their specialty is all the delicious frou-frou coffee drinks. I usually don't go for them, but today, I was in the mood for it. Their milk chocolate mocha with light ice was delicious It made me very happy and our pup was super happy with the treat they gave him. They have a small bakery display which I passed on since we were getting brunch soon, but I'm sure there's something for everyone there. This location is open 7 days a week- 6:30am-1pm. Limited street parking as expected...it's Mission Beach. 5 stars! Check them out!

    Don't miss this little hole-in-the-wall spot. It's the perfect place to stop if you're walking…read morealong Mission Beach and want a good coffee break. The staff here are incredibly kind and personable. They make everyone feel like a regular, even if you are just visiting the area. One of the best parts is their creative latte menu. The flavors are made in house and they rotate them seasonally, so there's always something new to try. I had to go for the banana bread latte because it sounded so unique, and it was amazing. Seriously so good and perfectly balanced. Such a fun little pre beach walk coffee stop with friendly staff and creative drinks.

    Photos
    Lazy Eye Coffee
    Front
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    Lazy Eye Coffee

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    Sine Wave Cafe - coffee - Updated June 2026

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