Conversation so far:
when do you need to blind bake pastry
Blind baking a pie crust is necessary when it will be filled with an unbaked filling, in which case the crust must be fully baked.
what are some methods for blind baking pastry
In one technique, the pie crust is lined with aluminium foil or parchment paper, then filled with pastry- or pie weights to ensure the crust retains its shape while baking.

Question: what can be used as a weight
Self-contained rewrite: what can be used as a pie-weight for blind baking