Can I go go to jail for stealing beer?

Depending on the amount of beer you stole, you can expect to be charged with petty theft, grand theft, commercial burglary or any number of other charges. Depending on the court, D.A., and Judge and whether you are charged with a felony or misdemeanor, you can get anywhere from probation to jail time. I strongly suggest that you contact an experienced criminal law attorney for a face-to-face consultation and give him/her all of the facts surrounding your arrest. He/she would then be in a better position to analyze your case and advise you of your options.

Petty theft carries up to 6 months in county jail. As a first offender, you're unlikely to get more jail time than you've already done, but it's worth getting an attorney to see if there's a way to avoid having a theft conviction on your record. A theft charge will haunt you for years.

I practice in Norhtern California so I cannot give you any idea what LA will impose as a punishment. You can go to jail or prison if it was charged as a felony burglary.

Jail is the penalty for every crime, including the misdemeanor you are charged with. The honest answer is that no attorney can predict the outcome, nor even give an intelligent opinion, without reviewing and knowing all the charges, evidence, police reports, expected testimony, priors history, etc. However, with no prior record, it is likely that your attorney could be able to get a plea bargain that includes no additional jail time, since you were in custody several days already. When charged with any crime, the proper questions are, can any evidence obtained in a test, search or confession be used against you, can you be convicted, and what can you do? Raise all appropriate defenses with whatever witnesses, evidence and sympathies are available for legal arguments, for evidence suppression or other motions, or for trial. If you don't know how to represent yourself effectively against an experienced prosecutor intending to convict, then hire an attorney who does, who will try to get a dismissal, charge reduction, diversion, program, or other decent outcome through plea bargain, or take it to trial if appropriate.

You need to hire a lawyer, because petty theft is a crime of moral turpitude, and if you have it you can forget obtaining any meaningful employment for the next decade. Jail is the least of your concerns.

Yes it's a petty theft and also a burglary.

You need a lawyer. Theft charges, even minor ones for things like stealing beer, can have drastic consequences for you and your future. If you can't afford to hire a lawyer, then ask the court to appoint the public defender when you go.