cultured raw butter?

[Guest guest]

A friend sent me raw butter in the mail. When I used it it tasted and

smelled kind of cheesy. I figured it must be cultured. She said it

wasn't when they sent it but we thought maybe being in the mail for a

couple of days, it might have cultured itself. I'm buying organic

butter now but I guess we should be eating raw butter. If I go back

to the raw butter, does it have to stay refridgerated all the time if

you don't want the cheesy taste?