Adding Old to New

[Murgay]

Fairly new to brewing and curious if a couple of PET bottles of previous brew (“flat” , soft PET bottles ) can be added into a new brew ? Curious if this will cause new brew to be off, if it will affect alcohol level and any other side effects

Muz

[Classic Brewing Co]

1 minute ago, Murgay said:

Fairly new to brewing and curious if a couple of PET bottles of previous brew (“flat” , soft PET bottles ) can be added into a new brew ? Curious if this will cause new brew to be off, if it will affect alcohol level and any other side effects

Muz

Hi @Murgay Welcome to the forum.

I definitely would not do that; it can cause all sorts of problems. Just concentrate on your next brew.

[Aussiekraut]

55 minutes ago, Murgay said:

Fairly new to brewing and curious if a couple of PET bottles of previous brew (“flat” , soft PET bottles ) can be added into a new brew ? Curious if this will cause new brew to be off, if it will affect alcohol level and any other side effects

Muz

Do not do that. You're opening doors for all sorts of dramas, yucky beer, infections, etc. 

[Popo the Reprobate]

3 hours ago, Murgay said:

Fairly new to brewing and curious if a couple of PET bottles of previous brew (“flat” , soft PET bottles ) can be added into a new brew ? Curious if this will cause new brew to be off, if it will affect alcohol level and any other side effects

Muz

Is it just to use them up? Or are you trying it for some particular reason?

[Kegory]

5 hours ago, Murgay said:

Fairly new to brewing and curious if a couple of PET bottles of previous brew (“flat” , soft PET bottles ) can be added into a new brew ? Curious if this will cause new brew to be off, if it will affect alcohol level and any other side effects

Muz

IIRC this technique is used by some Belgian breweries although my understanding is that they do not store old ales in PET bottles.

FWIW I wouldn't try it unless I was planning to brew one of those Belgian ales and had brewed the older to-be-added beers with that in mind.

[Classic Brewing Co]

28 minutes ago, Kegory said:

IIRC this technique is used by some Belgian breweries although my understanding is that they do not store old ales in PET bottles.

FWIW I wouldn't try it unless I was planning to brew one of those Belgian ales and had brewed the older to-be-added beers with that in mind.

If you have a failed brew (in this case flat beer) & you added it to a new brew, you will have two failed brews, don't even think aboout it, just chuck the flat beer & make some nice beer.

If you need help there is plenty on this great forum.

[Oldbloke]

I wouldnt. Possibilty of infecting the new brew as previously mentioned.

However, if it seems ok other than being flat you could try adding a teaspon of sugar to the bottle and reseal. (Perhaps the cap leaked or it didnt get primed?) Try again in a few weeks. 

 

You never never know unless u have a go. 

[Classic Brewing Co]

29 minutes ago, Oldbloke said:

I wouldnt. Possibilty of infecting the new brew as previously mentioned.

However, if it seems ok other than being flat you could try adding a teaspon of sugar to the bottle and reseal. (Perhaps the cap leaked or it didnt get primed?) Try again in a few weeks. 

 

You never never know unless u have a go. 

Just chuck it, it is only a couple of PET bottles fks, why waste time on a flat beer, accept it was a fail & move on.

There is no need to be worried about crap when you can start a new day & make good beer.

Being tight & stubborn doesn't fit, so get over it.

That's my opinion so Hallelujah. 

Cheers.