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    Mercurys Coffee

    4.3 (55 reviews)
    Open 5:00 am - 7:00 pm

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    sandwich dessert case
    Erica J.

    Seriously the best americanos around they are not bitter, just purely delicious. the breakfast burritos are not bad if i'm your in a rush either, breakfast sandwiches are just ok if they are heated to much they can be tough.

    I brought in my travel cup with unsweetened almond milk. I said, don't dump it. She went right to sink disappeared and demoted the milk I thought of to bring in! The thing is, I drive extra distance to come to mercury when starbucks milk plant ones have no sugar & it's free with Amercano! I did not get an apology, just an entitlement. I'm so mad!!! Sad all their plant based non dairy milk has sugar, contrary to previous statement from another barista a year ago, as I cannot have sugar. I thought it was their coffee. Unless they change to no added sugar plant milk, I cannot have their latte or americano as often as I used to. Please change it! Thanks!

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    Photo of Dana M.
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    1 year ago

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    Morgan H.

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    11 months ago

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    Morgan H.

    Thank you, Ray!

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    4 years ago

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    Morgan H.

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    2 years ago

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    3 years ago

    Love this Coffee Shop, Awesome Food and Coffee and they are very polite, professional and couteous.

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    4 years ago

    Got gift cards for Christmas for my family & myself...we love getting out & about with great variety of coffee & food!

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    3 years ago

    Great coffee and great people. Order is always right. Good drink options and food options

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    5 years ago

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    8 years ago

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    7 years ago

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    4 years ago

    Delicious coffee and great service with a smile. Line was quick. There is no inside seating.

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    Morgan H.

    Thank you for sharing!

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    5 years ago

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    6 years ago

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    Morgan H.

    Thank you so much! We look forward to serving you again soon :-).

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    6 years ago

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    9 years ago

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    6 years ago

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    7 years ago

    Decent coffee. Friendly staff. Not my first choice but a good choice when I'm in neighborhood!

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    4 years ago

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    7 years ago

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    5 years ago

    Friendly and quick service! And the coffee is always good! Blonde Hawaiian and White Russian are my faves!

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    6 years ago

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    9 years ago

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    Morgan H.

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    6 years ago

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    Morgan H.

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    6 years ago

    Mercury Coffee has the best coffee and the baristas at the Sammamish location are AWESOME!!!

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    6 years ago

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    9 years ago

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    Page 1 of 2

    Ask the Community - Mercurys Coffee

    Do they have indoor seating?

    Hi Jayati! Unfortunately our Sammamish location does not have indoor seating but our Redmond Union Hill Rd location does :-)

    Don’t See Your Question? Ask Away!

    Review Highlights - Mercurys Coffee

    This Mercury location had both of these qualities when I came in today right before closing.

    Mentioned in 2 reviews

    Read more highlights

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    This new-ish tea shop recently replaced the old Yifang location and it came with a makeover! The…read moreinterior features a cherry blossom theme and they also offer adorable merchandise like greeting cards and little trinkets. I've visited twice so far and both times, I was able to order right away at one of their two kiosks. I can imagine kids hanging out here on weekdays after the nearby high school is dismissed, but when I went in the early afternoon and on the weekend, it was a quick stop in and out. I've really only interacted with the one employee at the counter who makes the drinks, but he was welcoming and helpful, answering a couple questions I had with a smile. + HOUSE SPECIAL MILK TEA ($6.75): The menu describes this as having "special sweetener and rich tea taste", made with black tea, condensed milk and evaporated milk. The employee said most people will order it with boba or lychee jelly, but I opted for it without toppings and at 25% sweetness. For me, the 25% was just right, and I don't think I could tolerate a higher level. I believe this is their version of a Hong Kong Style milk tea and while the flavor was fine, the tea seemed diluted and didn't have that richness as advertised. + PINEAPPLE GREEN TEA ($5.55 special* + $1.00 cheese foam): This was quite refreshing and crisp, but even at just 25% sweetness, it was on the sugary side, considering it also had pineapple pulp on the bottom, so the natural sweetness of the fruit came though. Again, the tea flavor was weaker than I would have liked, but very pineapple-forward. I enjoyed their cheese foam which was velvety, balanced between milky and salty notes, and had a flavor similar to marshmallow. All toppings (boba, sago, pudding, etc.) are $1.00 which is on the steeper side compared to other tea shops. Don't forget to sign up for their rewards program where you can earn "bubbles" for each drink purchased. Keep in mind that it doesn't automatically track when you enter your phone number... you actually need to take an extra step to opt in and sign up. *They have monthly specials where a couple drinks from their existing menu are offered at 15% off, like the Pineapple Green Tea I got at the discounted price. I am up for trying Tea Talk again, but with hopes that I'll be able to actually taste more of the tea next time. 3.25 stars.

    I was craving bubble tea, and wanted to order some for delivery. I only drink fruit tea, and not…read moremilk tea, and saw that this place had some yummy-sounding fruit teas. There were too many I wanted to try, so I ordered three: Fragrant Apple Fruit Tea (which came with aloe), Kiwi Iced Tea (added aloe), and Peach Grapefruit Green Tea (added boba). I also ordered a Hong Kong Style Lemon Tea for the bf. Everything was flavorful, fruity, and refreshing. Besides the Apple Fruit Tea, they all had fruit pulp or fruit bits. The texture of the boba was good. I did 25% sugar on my drinks, and it was perfect. Would order from here again.

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    Mercurys Coffee - coffee - Updated September 2026

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