if you need to, you can use a sanitized rod or similar object to reach inside the vial and manually break up those chunks, then recap and shake it up more.
do be careful opening these vials. they ahve a little pressure to them. so crack the lid slightly and vent it, then open all the way.
otherwise you might be wearing a few million yeast cells.
Primary: English Mild
On tap: Pale Ale, Lancelot's Wheat, English Brown Ale, Steam Beer, HoovNuts IPA
Bottled: MOAM, Braggot, Raspberry Melomel, Merlot, Apfelwein, Pyment, Sweet mead, Cabernet
Gal in 2009: 27, Gal in 2010: 34, Gal in 2011: 13, Gal in 2012: 10