Improving foam longevity with egg white

[MehrdadMolavi]

I suspect that eggs whites might enhance foam retention because of their proteins, the majority of which are ovalbumin, which happens to be a glycoprotein. Glycoproteins from malt are known to enhance foam. I think there are some egg white powders available as supplements.

Yes, the foam is made by the proteins and it also causes haze and turbidity and you can fine-tune it by adding some gelatine to reduce the turbidity.

 

[MehrdadMolavi]

you should consider the fact that the article said that you need something that has at least 20% alchool, so not most beers...
That said, i eat raw eggs and never had any problem. In movies americans always seem so afraid of things like that, apparently they are in real life too.

Yes you are right, the more alcohol the faster disinfection in a period of time, so if the amount of alcohol is low then you have to keep it longer in contact with pathogene to be more effective.

 

[MehrdadMolavi]

Those of us who were alive in the 80s and 90s saw some pretty major egg-related salmonella outbreaks. In the UK too, not just the US. It’s less of a problem now than it used to be.

And salmonella is no fun. Would I change my behavior to avoid a 1% chance of salmonella? You betcha.

We could use pasteurized egg white to reduce the risk.

 

[MehrdadMolavi]

Yeah, i think it was just never a big problem here, so no one got the trauma. We do have some others, like most people here hate undercooked meat

Dried egg white powder also increase the foam but you need to dilute it well before adding.

 

[Pablo Rocha]

Just add 50g of wheat flour during mashing and the problem is solved.

 

[Broothru]

This sounds like a good way to catch salmonella, if you ask me.

The commercially available packaged egg white, such as Egg Beaters brand 'whites only', would be pasteurized.

 

[Pablo Rocha]

Just add 50g of wheat flour during mashing and the problem is solved...

 

[Rish]

1% chance

1/20,000=.00005% chance.

 

[AlexKay]

1/20,000=.00005% chance.

As I was saying, it was much worse in the 80s and 90s than it is now. You kids don’t know how good you’ve got it…