Can the QIAshredder Maxi Spin Columns from the DNeasy Plant Maxi Kit be used for RNeasy samples?
FAQ ID -616

The QIAshredder Maxi spin columns  from the DNeasy Plant Maxi Kit are not recommended for use in conjunction with QIAGEN's RNA isolation products. The filter can only tolerate low centrifugal forces not sufficient to shear genomic DNA. If genomic DNA is not sheared, there will be an increase in genomic DNA contamination in the purified RNA.

For an alternative to QIAshredder homogenization in combination with RNeasy Midi/Maxi Preps, please see FAQ 560.