iceman1988

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Greetings fellow beer crafters, quick question. I have left a fresh batch of pilsner to ferment in the hotpress. Its on day 7 now with sediment on the sides present. Its dark in colour and has a strong smell.I live in ireland so the temp rises and falls. Is it possible for the batch to turn bad if the temp is too low even though there are signs of fermintation present.


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RCCOLA

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What is the temp range and yeast used?

KISS Brew

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Most off flavors occur with fermentation temperatures being too warm. If fermentation is continuing at lower temperatures (which you should verify with a hydrometer), then you're probably okay.

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iceman1988

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currentlly the temperature is between 18-20 degrees celcius. And I have used coopers brewing yeast. I took a reading with the hydrometer this morning and it has just passed the start beer line. I reckon it still needs two more weeks

twistr25

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Those temperatures sound pretty good. If anything, lower temperature will slow the fermentation process, sort of lull the yeast to sleep, but given enough time, it'll work out just fine. I'd wait two weeks minimum and then take an FG reading. Worst case you give it enough time for the yeast to clean up after themselves and you have a clearer beer. Slainte!

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JLem

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Those temps are too warm if you're making a true pilsner with a lager yeast. Lager yeast should be kept closer to 10-14°C. I'm not familiar with Cooper's yeast, so I don't know if it is a lager or an ale - are there different strains of Cooper's?

(and if you're using an ale yeast, your temps are OK, though you're not making a pilsner)

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KISS Brew

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While this is a serious concern, I think most Cooper's kits come with the same ale yeast, regardless of style. I may be wrong.

__________________
Fermenting / Conditioning:
Beyond the Pale Ale, Cut and Dry Stout

Bottled:
Hoptoberfest IPA, Oktoberfest Ale, Blonde Ale, Scottish Ale, Oatmeal Stout, Edwort's Apfelwein, Janet's Brown Ale, Irish Red Ale, Strawberry Wheat, ESB, Belgian Pale Ale

KISS Brew Homebrewing Blog

Most recent post: Beyond the Pale Ale Recipe

Wirk

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No, warm temperatures can make your batch bad.

If you are brewing a lager, 20c is way too much.

DPBISME

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So According to Palmers Book

Cooper's Ale (Cooper's)
All-purpose dry ale yeast. It produces a complex woody, fruity beer at warm temperatures. More heat tolerant than other strains, 65-75¡F; recommended for summer brewing. Medium attenuation and flocculation.

Your Temps = 64.4 to 68
Coopers = 65 to 75

SO unless I am missing something you should be OK.... but it won't be a Pilsner...

It looks like Coopers does a European Lager Kit but I have not been able to find out what yeast it uses.... I get the impression it is the Ale Yeast...

Also no luck at finding their web site I think the company name is Thomas Cooper

iceman1988

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After looking at the box I remembered it is a coopers european lager so it came with the yeast.I still have left it in the hot press(boiler room for people who are wondering what a hot press is ). I,ve checked its condition today and its bubbling away nicely. I'll leave it a while till I get a reading. Any ideas how to clear sediment in the brew.I was thinking over time , it would clear.

We are the beer makers,we are the dreamers of the dreams-Gene Wilder