Freezer tubs/boxes/bags

[delilabell]

I've read one several threads about bulk cooking but what do you put these in to freeze? Is it takeaway tinfoil things , reusable plastic boxes or freezer bags?

Freezer bags.
I can squish the bags to quite flat and it saves space.
Once I e emptied a bag I then rinse it and recycle it.

Pyrex or tupperware. I avoid single use plastic so avoid bags.

The plastic containers with lids from the takeaway. They stack neatly.
I don't bulk cook, but I freeze leftovers.