As a Sag Harbor resident, it has been a fun ride with Grindstone, but that seems to be coming to an end. The stores popularity makes it a off season /mid week only treat, however that isn't the issue. The issue is the quality of the product. Even at $5 a donut, something has changed with the quality of the donut. The whole family (ok, the two kids and dad..) tasted it immediately. Did Sysco cause a change in suppliers,? Who knows, but it's definitely different, and not for the better.
Jul 11 · Christopher JonesGrindstone Coffee & Donuts
7 Main St, Sag Harbor, NY 11963, USA
Directory information can change. Confirm current hours, prices, products, dietary needs, and custom-order requirements directly with the bakery.

Essential details
- Address
- 7 Main St, Sag Harbor, NY 11963, USA
- Phone
- (631) 808-3370
- Website
- Visit official site
- Rating signal
- 4.0 from 400 recorded reviews
Listed operating hours
- Monday7:00 AM – 4:30 PM
- Tuesday7:00 AM – 4:30 PM
- Wednesday7:00 AM – 4:30 PM
- Thursday7:00 AM – 4:30 PM
- Friday7:00 AM – 4:30 PM
- Saturday7:00 AM – 4:30 PM
- Sunday7:00 AM – 4:30 PM
About and visit notes
For New Yorkers seeking a delicious escape from the city, or for those enjoying the charm of Long Island's East End, Grindstone Coffee & Donuts in Sag Harbor is a destination worth noting. This popular shop has established itself as a go-to spot for freshly made, high-quality donuts and expertly brewed coffee. It's a place that captures the relaxed, coastal vibe of Sag Harbor while delivering a product that stands up to the high standards of a New York palate. The aroma of freshly brewed coffee and warm, sugary donuts is an inviting promise of the treats that await inside.
The philosophy at Grindstone is simple: create a memorable experience through quality ingredients and a commitment to flavor. The shop prides itself on its donuts, which are described by customers as fluffy, fresh, and truly homemade. This dedication to craftsmanship is evident in every bite, from the simple perfection of a cinnamon sugar donut to the rich filling of a strawberry jelly one. The menu is thoughtfully curated to include both classic favorites and exciting seasonal options, ensuring there's always something new to try. This approach keeps locals and seasonal visitors alike coming back for more, eager to discover the latest flavor sensation.
Beyond the donuts, Grindstone is also a serious coffee destination. Their offerings, from a simple cup of fresh coffee to a perfectly crafted iced latte, are designed to complement the sweetness of their pastries. This combination of a high-quality coffee program and a standout donut selection is a key part of the shop's appeal. It’s the kind of place where you can get your morning caffeine fix and a sweet treat all in one stop, making it a convenient and delicious part of a daily routine.
The shop’s popularity is a double-edged sword, as noted by some residents. Its success, especially during the busy summer season, can lead to long lines, making it more of an "off-season / mid-week only treat." However, this popularity is also a testament to the quality of the product. The demand for their donuts and coffee is a clear indicator that Grindstone has successfully carved out a niche in the competitive Sag Harbor food scene. For many, the brief wait is a small price to pay for a taste of their delicious offerings.
While a recent review mentioned a perceived change in quality, with one resident noticing a difference in the product, the overall sentiment remains positive. The focus on fresh, homemade taste, exemplified by a customer's praise for the "cinnamon sugar one" and "strawberry jelly donuts" with "a lot of jelly inside," highlights the general satisfaction with the shop's products. The seasonal blueberry jelly donut is also a highlight, showcasing the shop’s creativity and ability to adapt its menu to the seasons. This kind of attention to detail and customer feedback is what makes a local business truly special.
Grindstone Coffee & Donuts is situated at 7 Main St, Sag Harbor, NY 11963, USA. This prime location places it in the heart of the charming village of Sag Harbor, a quintessential part of Long Island's Hamptons. The shop is easily accessible for both local residents and tourists visiting the area. Main Street is a central thoroughfare, making it simple to find for anyone walking around the village.
For those traveling by car, Sag Harbor is connected by major roads, though traffic can be heavy during peak season. There are public parking options available in the village, including street parking and municipal lots, though finding a spot can be a challenge during the busy summer months. It's often recommended to arrive early or visit during the off-season to ensure a more relaxed experience.
The shop's central location also makes it highly walkable. It's a short stroll from the beautiful Sag Harbor waterfront, the famous Sag Harbor Cinema, and a variety of local boutiques and art galleries. This makes Grindstone a perfect stop during a day of exploring the village. The ability to grab a donut and a coffee and then continue your walk around the harbor is a major part of the overall experience.
For those using public transportation, local bus services operate in the area, and the Sag Harbor Jitney is a seasonal option. While not as connected as a city location, the accessibility of the village itself makes Grindstone a convenient spot for many. Its central position and integration into the village's vibrant life are key to its success and its appeal to both residents and visitors.
Freshly Made Donuts: The core offering is a wide variety of donuts, known for their fresh, fluffy, and homemade quality.
Specialty Coffee: Grindstone serves a full menu of coffee drinks, including fresh-brewed coffee, cappuccinos, and iced lattes, all designed to pair perfectly with their donuts.
Seasonal Specials: The shop frequently introduces seasonal flavors, such as the blueberry jelly donut, keeping the menu fresh and exciting for repeat customers.
Takeout: All products are available for takeout, making it easy for customers to grab their orders and enjoy them on the go while exploring Sag Harbor.
Variety of Flavors: The menu includes classic favorites like cinnamon sugar and jelly-filled donuts, as well as other unique options, ensuring there is something for every taste.
Homemade Quality: Customers consistently praise the donuts for their fluffy texture and fresh, homemade taste, distinguishing them from mass-produced alternatives.
Seasonal Menu: The rotating seasonal specials, like the blueberry jelly donut, provide a reason for customers to visit throughout the year to see what's new.
Delicious Coffee Pairings: The high-quality coffee and espresso drinks are a perfect complement to the sweet donuts, creating a complete and satisfying experience.
Central Sag Harbor Location: Situated on Main Street, the shop is a convenient and popular stop for anyone exploring the village.
Generous Fillings: The jelly donuts are specifically highlighted for having a generous amount of filling, a detail that customers appreciate.
Address: 7 Main St, Sag Harbor, NY 11963, USA
Phone: (631) 808-3370
For residents of New York, especially those in the Sag Harbor area, Grindstone Coffee & Donuts is a local institution that offers more than just a quick bite. It provides a taste of home-baked goodness and a quintessential Sag Harbor experience. The dedication to quality, from the fluffy, fresh donuts to the delicious coffee, makes it a reliable choice for a morning treat or an afternoon pick-me-up. While its popularity can lead to crowds, especially during the summer, this is a testament to its status as a beloved local spot.
The seasonal menu adds an element of excitement, encouraging repeat visits and allowing the shop to celebrate the flavors of the moment. Its central location on Main Street makes it an easy and convenient stop for anyone going about their day or enjoying a leisurely stroll. For locals, Grindstone represents a small piece of the community’s character—a place where a simple donut and coffee can bring a moment of joy. It’s a perfect spot to meet a friend, grab a treat for the family, or simply indulge in a delicious moment of peace.
Even with occasional concerns about changes in quality, the strong positive reviews about specific items like the cinnamon sugar and jelly donuts demonstrate that the core product remains a favorite. This loyalty and a willingness to provide feedback are what make a business truly a part of the local fabric. Grindstone is not just a donut shop; it's a cherished part of the Sag Harbor community, offering a delicious, homemade experience that is perfectly suited for its local patrons.
Services and accessibility
These attributes come from the directory record and should be confirmed when essential.
From the business
- Identifies as Asian-owned
- Identifies as Black-owned
- Identifies as LGBTQ+ owned
- Identifies as women-owned
Service options
- Delivery
- In-store pick-up
- Takeaway
Highlights
- Great coffee
Popular for
- Solo dining
Accessibility
- Wheelchair-accessible car park
- Wheelchair-accessible entrance
Offerings
- Coffee
Dining options
- Breakfast
- Dessert
Amenities
- Wi-Fi
- Wi-Fi
Atmosphere
- Casual
Crowd
- Family friendly
- LGBTQ+ friendly
- Transgender safe space
Planning
- Quick visit
Payments
- Credit cards
- Debit cards
- NFC mobile payments
- Credit cards
Parking
- Free of charge street parking
See the bakery
Reviews and recurring themes
Read individual comments as personal experiences, not verified guarantees.
Great great place in Sag Harbor. During the summertime I always find the time to get here and enjoy these delicious donuts with a cappuccino or ice latte. I love all donuts here, tried almost everything so far but the most fav is the cinnamon sugar one. It’s simple, not too sweet, fluffy, fresh and you can taste it’s a real homemade big donut. The strawberry jelly donuts are also SO SO delicious - it has a lot of jelly inside. Seasonally, they have the blueberry jelly which is also a big yes for me. Their coffees are also delicious and fresh!! Can’t wait to be back here and try other flavors too.
Jul 1 · Dora GNot bad! The cinnamon sugar donut is really good. The chocolate glazed donut tastes like a cake. But i was not a fan of the lemon coconut at all, it Tastes weird. $5 ish per dodo
Jun 12 · Jack ClaytonStaff were friendly. Went in the afternoon on a Friday and they still had a full selection. $5 a donut is probably acceptable for the location.The strawberry glazed had a deliciously-lemony tang to it. But it was strong enough that I would honestly call it a Strawberry Lemon donut to not surprise you. Jelly donut was very well stuffed; prepare for that.A short step up from Dunkin’ in aesthetics and flavor.
Aug 12 · Nick JacobsonWhether you’re craving a delicious treat, or need a shot of caffeine, Grindstone is THE place to go for both in Sag Harbor.Grindstone has amazing vibes, thanks to the super friendly and welcoming atmosphere that Kyle and his team provide.Try the maple sea salt for a taste of heaven. You’ll be glad you did.
Jun 14 · Bob WellsCompare another bakery nearby
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