Should I use an airlock during primary fermentation?
Should I use an airlock during primary fermentation?
Wine making kit producers recommend sealing up the primary fermentation with an air-lock because they are more concerned about eliminating any risk of spoilage than providing the fastest fermentation possible.
Does primary fermentation need oxygen?
Lot’s of air exposure is good for the primary fermentation – the first 3 to 5 days. This is when the wine yeast is trying to multiply itself into a colony that is about 100 to 200 times the little packet of wine yeast you originally put in the wine must. The yeast need this oxygen to multiply successfully.

Is brewing beer primary secondary or tertiary?
Beer fermentation starts in the primary fermenter.
Can you leave beer in primary too long?
Is there a risk of leaving beer in the primary fermenter too long? As a general rule of thumb, one can leave the beer in the primary fermenter as long as one needs. There is no set maximum time limit, though there are a couple of slight risks to keep in mind.

Can you drink infected homebrew?
In short, no. As far as I know, most “infected” beer is a version of vinegar. Even something that is vinegar in smell and taste is difficult to drink so if it’s really infected to the point of causing deadly illness, it’s unlikely that you’ll be able to stomach enough of it to cause anything beyond a stomach ache.
What is primary and secondary in brewing?
Primary fermentation occurs during the first 3-5 days of a beer’s life when the yeast consumes most of the sugar. Secondary fermentation takes 1-2 weeks or longer and the yeast works slower, conditioning the beer and reabsorbing any off flavors or undesirable chemical by-products.
How long can you keep beer in primary fermenter?
An average beer can remain in the primary fermenter for many weeks before encountering problems … anywhere from 2 to 6 weeks is going to be fine. The primary concern with extended time leaving the beer in the primary is off-flavors due to autolysis of the yeast.
Can I stir my homebrew during fermentation?
Absolutely do NOT stir it in. You’ll re-oxygenate the wort and get weird flavours going on and there’s no benefit anyway. it’s top fermenting yeast so it’s supposed to be on top and will sink at the end.