Beer Bottle Caps For Recapping Bottles Is It Safe To Drink A Capped Beer That Has Been Opened And Resealed After A Few Days?

Is it safe to drink a capped beer that has been opened and resealed after a few days? - beer bottle caps for recapping bottles

I have a bottle of beer, 51 ounces Baltica 8% alcohol, I opened it a few days to take a sip and be closed again. It was cool, but I'm in New York and quite cool in anyway. I wonder whether it still cool to drink. I drank beer, 40 Oz after summarizing and put them in a refrigerator, but it was not in the fridge? I do not know if it's a rule for that, but I want to drink. What do people think?