Altered State Coffee

San Diego, CA · Coffee shop

Rating
5.0/5
★★★★★ 5.0
Reviews
20
Rank in San Diego
#25
of 3838 restaurants
City Percentile
94%
rating percentile
Address
Altered State Coffee, 641 B St, San Diego, CA 92101
Phone
(619) 231-4405
Website
www.alteredstatesd.com

Altered State Coffee is a restaurant located in San Diego, CA. It is one of 3,838 restaurants listed in San Diego. Its 5.0-star rating is above the San Diego city average of 4.3 stars. There are 10 photos associated with this location.

About Altered State Coffee

Located in the heart of downtown San Diego, we’re proud to serve specialty coffee roasted locally—crafted with care and creativity. Our menu features unique, housemade flavored syrups and cold foams you won’t find anywhere else, perfect for elevating... More

Customer Reviews

★★★★★ 5.0 Katie Eglsaer · Jan 2026

So happy I found this amazing spot! I can’t really say anything to top what’s already been said and wholeheartedly agree with all the glowing reviews posted before me. The Purple Haze (ube cold foam cold brew) is a delight and the Egg McMuffin is perfection complete with sausage from the flat-top grill- work the (brief) wait! Super chill vibes both below and above in the loft lounge area. Also some tables outside! Perfect music soundtrack (90s-70s) and very comfy and ample seating. I couldn’t believe how much seating they have. You must check it out and support this terrific local small business. I’ll be back sooner than later 💕😍

★★★★★ 5.0 Christi Lao · Aug 2025

I just had their drink called Fool In The Rain along with two of their breakfast empanadas. SO GOOD!! I’m excited to come back and explore more of their drinks and food, especially with live music playing. The vibe upstairs is amazing. Totally unique for a cafe and definitely feels like a great spot for private events.

★★★★★ 5.0 Macie McGee · Jul 2025

the grooviest coffee shop ever! they just opened up and i will now be making this a regular stop to my mornings. they have a loft area upstairs with two rooms of seating. it feels soooo cozy and retro. lots of records, posters, and guitars decorating the place. there are multiple sky lights in the upstairs rooms. my friend and i tried 2 different specialty drinks and they’re both delicious!! 10/10

★★★★★ 5.0 Ido Kinel · Dec 2025

Such a hidden gem. Delicious drinks, beautifully crafted space. One of those places you don’t want to tell people (or influencers) to keep it all to yourself but the owners truly deserve the business. Must visit for coffee shop enjoyers.

★★★★★ 5.0 Samuel Hahn · Oct 2025

Very tasty coffee. Staff is friendly and they have plenty of seating. Pastries were good and fresh too. Grab a coffee and spend 30 minutes relaxing

Accessibility & Amenities

✓ Onsite Services ✓ Takeout ✓ Dine In ✓ Delivery ✓ Great Coffee ✓ Great Tea Selection ✓ Live Music ✓ Live Performances ✓ Breakfast ✓ Wheelchair Accessible Entrance ✓ Coffee ✓ Casual ✓ Trendy ✓ Accepts Reservations ✓ Credit Cards ✓ Debit Cards

Services

Coffee shop

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This listing is informational. Contact the business directly to verify credentials, services, and availability.