uk-preppers.co.uk

Do you need to treat food prior to sealing and storing. I heard you need to freeze it for 4 days before sealing up to kill bugs and eggs , but I thought oxygen generators would kill anything do to 0 oxygen being present.
What do you all normally do

Where is best to get these food safe containers in fact if they are in mylar sealed bags do they even need to be food safe

Brand new to prepping looking to get food safe storage containers various sizes going up to 25 litre
Have sussed the oxygen absorbers and mylar bags and vacuumed sealer.
But any info and help would be appreciated