Blackberries

[Fido97]

Boil the fruit a few days in advance. Then freeze and bung it in at end of boil or straight into the secondary depending on your modus operandi.

[pads72]

This is what I went for last week - brew day post
viewtopic.php?f=24&t=61949

[EoinMag]

When I have added fruit to beer, I have bought frozen from the supermarket, which has already been sterilised. I made a cracking saison this summer, half of which I added raspberries and the other half summer fruits (strawberries, redcurrants etc). I would never buy blackberries out of principle . I've also read that when adding to secondary, there's enough yeast in beer to sort out any nasties that the fruit might introduce.

Can't see the problem with milton, I use it when abroad to clean any fruit bought from markets and road stalls etc. It needs rinsing off though.

Anyhow, does anybody have an ideas how much I should add per gallon

There is a hepatitis A scare at the moment due to people getting it from frozen fruit this summer, the advice presently is to boil all frozen fruit.

http://www.irishtimes.com/news/health/h ... -1.1469002

Don't think that because they're packaged and frozen that they are sterile.