"It's situated on Caltech's campus in Pasadena, California. The cafe is open from 7 am to 8 pm on Monday - Friday and 1 pm to 8 pm on Saturdays and Sundays. It is open as for the students, as for the general public. One can pay either with the Caltech's ID or a credit/debit card. The place is clean and very efficient. I was there on a Saturday in mid-July, and it was busy but not overcrowded. I waited in line to order food for about 7-8 minutes and then another 8 minutes to pick up my order. There was plenty of space indoors and outdoors. My iced cafe latte and avocado toast were superb. I enjoyed their service, quality of food, beverage, and atmosphere. It's definitely worth visiting. There is also a Caltech's gift shop adjacent to the cafe, but apparently, it is closed on Saturdays and Sundays."

"Food is pretty good, the matcha lemonade is the best drink of the summer! And the service is always friendly & excellent!"

"The food is delicious! The staff is super sweet as well. I think they should lower the music volume and perhaps play more calming music. Aside from that i had an amazing experience with a staff member who’s name was Martha! She was so helpful. Will be coming back. Cheers!"

"I graduated from this campus 19 years ago, and back then, the staff in Red Door Cafe were all nice and super friendly. Today I went back to campus for a conference tomorrow, and 16-hour jet lagged. I had no energy to go out for dining so I just wanted to buy sth simple and quick on campus. I ordered a salmon avocado toast. When I received it, I found out the salmon was not fully cooked. I asked about it and was told by a staff member that it was smoked. I thought maybe this was intended for breakfast so it was smoked (but not thin slices, quite large thick slices). I did not ask further and was ready to go. While I was picking up utensils and napkins, I overheard the staff members there talking and laughing at my question in a rather rude way. It's a pity to see service staff members in such a manner on this esteemed campus."

"The food was quick and the employees were polite but after having their small tofu sandwich, a tiny salad, and avocado toast, I threw up just a few hours later. I feel that the avocado turned bad"