Cover - shares	6 Months Ended
	Jun. 30, 2024	Aug. 08, 2024
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Entity Interactive Data Current	Yes
Amendment Flag	false
Document Period End Date	Jun. 30, 2024
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q2
Entity Information [Line Items]
Entity Registrant Name	REBORN COFFEE, INC.
Entity Central Index Key	0001707910
Entity File Number	001-41479
Entity Tax Identification Number	47-4752305
Entity Incorporation, State or Country Code	DE
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Contact Personnel [Line Items]
Entity Address, Address Line One	580 N. Berry Street
Entity Address, City or Town	Brea
Entity Address, Country	CA
Entity Address, Postal Zip Code	92821
Entity Phone Fax Numbers [Line Items]
City Area Code	(714)
Local Phone Number	784-6369
Entity Listings [Line Items]
Title of 12(b) Security	Common Stock, $0.0001 par value per share
Trading Symbol	REBN
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		3,752,510