The irony here, is that despite both Philo (Quod Omnis Probus Liber) and Josephus (Judaean Antiquities) clearly spelling out that the Essenes never made animal sacrifices, researchers insist on finding evidence of sacrifices to prove that the Essenes were at Khirbet Qumrân! 57 If indeed, anyone actually finds evidence of a typical Jewish sacrifice at Khirbet Qumrân... it would strongly suggest that the occupants were not Essenes

https://www.researchgate.net/publication/346557311_Were_Sacrifices_Offered_at_Qumran_The_Animal_Bone_Deposits_Reconsidered