How to know if a berry is safe to eat is one of the answers.

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I'm having a problem with the quality of the blackberries I buy from the store on Sunday.On Sunday, I look around the outside of the box to see if there are any blackberries with white fluff on them.I will see the fluff when I open the berries on Monday if I don't see it then.I don't know if I should throw these out or buy large quantities of them to last me a week.

How do I know if a berry is safe to eat?Is it possible to throw out a berry with a white mold if the others don't?

I don't know how I'm supposed to keep blackberries out of the water after a day.I don't think my grocery store will be selling moldy berries, so maybe I am storing it wrong.

When you get them home, inspect for damaged berries and discard any that aren't perfect.The rest can be washed under cold running water.Take care to drain well.

Don't seal them with a snap lid, spread them on a dry paper towel for 30 minutes to fully drain and then put them in a new box.

There is a rapid spread of mould from a single damaged berry.They can spread like wildfire if they are touching or sweating.You should be fine if they are dry and cold in the air.I wouldn't allow you to eat them from the opposite side of the original punnet.The preventative work should be done first.

Pick a new store or complain at the first one if it happens again, even though they are still fragile and won't last forever.They will eventually start to dry out and look wrinkled, rather than being mold, if they are clean and dry.

It's possible that the moulds are in the fridge, not the berries.If the berries are damaged, they provide a breeding ground.I would recommend a fridge-sanitisation day.My method won't kill existing spores.

The problem started in the last 2 months.I'm not sure if the grocery store sells moldy berries or not.

I wouldn't try to get a week out of it.They are too fragile to be used for storage and should be eaten immediately.By a few days, Tetsujin's answer would prolong their life.You should probably steer clear of any that lasted more than a year.

It's not unusual for a basket of soft berries to contain at least one that didn't make it to you.I don't have to worry about having a problem if I eat the rest of the moldy ones.

You don't want to use lysol in your fridge.Pull out the drawers to clean under them if you want to just clean it out with baking soda.If you have a raging mold problem, rinse it down with a borax solution, if you can get your hands on some (7-mule team brand in the US is usually sold with laundry).