DA bro, Kasto garo prasna. I don't know what XXX stands for. Bacardi is also considered to be a XXX run. I think it either means tripple filtration or has to do with a 3-stage fermentation process. I can be totally wrong, but its my guess. I think that's what XXX on the label mean. XXX means smooth- mathillo darja ko rum jasto lagcha malai.