A polypeptide of glycosyl hydrolase family 5 having xanthan degrading activity, selected from the group consisting of: (a) (i) a polypeptide having at least 80%, at least 81%, at least 82%, at least 83%, at least 84%, at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to the mature polypeptide of SEQ ID NO: 2; (ii) a fragment of the polypeptide of (a)(i) that has xanthan degrading activity; and (iii) a polypeptide comprising the polypeptide of (a)(i) or (a)(ii) and an N-terminal and/or C-terminal His-tag.; (b) (i) a polypeptide having at least 80%, at least 81%, at least 82%, at least 83%, at least 84%, at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to the mature polypeptide of SEQ ID NO: 4; (ii) a fragment of the polypeptide of (b)(i) that has xanthan degrading activity; and (iii) a polypeptide comprising the polypeptide of (b)(i) or (b)(ii) and an N-terminal and/or C-terminal His-tag; (c) (i) a polypeptide having at least 80%, at least 81%, at least 82%, at least 83%, at least 84%, at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to the mature polypeptide of SEQ ID NO: 6; (ii) a fragment of the polypeptide of (c)(i) that has xanthan degrading activity; and (iii) a polypeptide comprising the polypeptide of (c)(i) or (c)(ii) and an N-terminal and/or C-terminal His-tag. (a) (i) a polypeptide having at least 80%, at least 81%, at least 82%, at least 83%, at least 84%, at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to the mature polypeptide of SEQ ID NO: 2; (ii) a fragment of the polypeptide of (a)(i) that has xanthan degrading activity; and (iii) a polypeptide comprising the polypeptide of (a)(i) or (a)(ii) and an N-terminal and/or C-terminal His-tag.; (i) a polypeptide having at least 80%, at least 81%, at least 82%, at least 83%, at least 84%, at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to the mature polypeptide of SEQ ID NO: 2; (ii) a fragment of the polypeptide of (a)(i) that has xanthan degrading activity; and (iii) a polypeptide comprising the polypeptide of (a)(i) or (a)(ii) and an N-terminal and/or C-terminal His-tag.; (b) (i) a polypeptide having at least 80%, at least 81%, at least 82%, at least 83%, at least 84%, at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to the mature polypeptide of SEQ ID NO: 4; (ii) a fragment of the polypeptide of (b)(i) that has xanthan degrading activity; and (iii) a polypeptide comprising the polypeptide of (b)(i) or (b)(ii) and an N-terminal and/or C-terminal His-tag; (i) a polypeptide having at least 80%, at least 81%, at least 82%, at least 83%, at least 84%, at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to the mature polypeptide of SEQ ID NO: 4; (ii) a fragment of the polypeptide of (b)(i) that has xanthan degrading activity; and (iii) a polypeptide comprising the polypeptide of (b)(i) or (b)(ii) and an N-terminal and/or C-terminal His-tag; (c) (i) a polypeptide having at least 80%, at least 81%, at least 82%, at least 83%, at least 84%, at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to the mature polypeptide of SEQ ID NO: 6; (ii) a fragment of the polypeptide of (c)(i) that has xanthan degrading activity; and (iii) a polypeptide comprising the polypeptide of (c)(i) or (c)(ii) and an N-terminal and/or C-terminal His-tag. (i) a polypeptide having at least 80%, at least 81%, at least 82%, at least 83%, at least 84%, at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to the mature polypeptide of SEQ ID NO: 6; (ii) a fragment of the polypeptide of (c)(i) that has xanthan degrading activity; and (iii) a polypeptide comprising the polypeptide of (c)(i) or (c)(ii) and an N-terminal and/or C-terminal His-tag.