Q&A for How to Clean Blueberries

They are normal yeast blooms, and aren't easily removed. Soaking in soap and scrubbing gently should work if you really want to get rid of it, though it's not harmful.

No, it isn't essential but if your blueberries are not organic, it is better to be safe than sorry. You don't want to eat pesticides.

You can wash a whole box as long as there is an opening for the water to flow through. Otherwise, just put them into a bowl and rinse and drain a few times.

Put the blueberries into a large bowl of water, swish them around, then scoop out with a slotted spoon.

A white color means the blueberry is underripe (if it's white and smooth) or moldy (if it's white and fuzzy). Either way, it should not be eaten. If they're underripe and still on the blueberry bush, leave them there until they ripen.

It is possible, but you would need to test your hypothesis by eating blueberries from an organic source, just to be certain it's not the blueberries themselves causing a reaction. If you have any concerns, stick to organically grown blueberries.