No it won’t go bad, unless you didn’t clean your equipment properly, used a cheap kit, and/or have poor storage. Quality kits will improve with four or more months of aging and develop more complex flavours with time.
Our standard corks are 3-4 year corks, so as long as you have good storage you can keep kit wines more than two years.
After bottling your wine, if you used cork, you should let the bottles stand upright for 2-7 days, then lay them on their sides or turn them upside down so the wine, and not the air bubble, is on the cork . This prevents the cork from drying out and sticking to the bottle and reduces the rate of oxidation.
If you have used our new synthetic corks, you should let the bottles stand upright for 4-7 days before you turn them on their sides. As they are plastic they will not dry out, so you can store your wine standing upright if you wish. With synthetic corks you will never get “cork taint” in your wine or cork crumbs. They are easier to put in and pull out, and they are #4 recyclable plastic.
The first thing to worry about is maintaining a constant temperature, day and night, summer and winter. It is best if you have less than 4º C fluctuation year round.
Once you have a constant temperature you can work on getting it down to between 12-18º C. The longer you plan on ageing your wine, the more important temperature becomes, but constant room temperature works fine for those with a fast turnover rate.
You can drink your wine any time after it is ready for bottling, BUT as a general rule, even the cheapest kits are better after four months of ageing. Most premium whites start to develop their full complex flavours in 4-6 months and reds in 6-8 months. Kits with crushed grapes seem to develop in 8-12 months but may peak closer to two years, depending on storage.
The bottom line is personal taste. When do you like it best? Every time you make a new type of kit, set aside one case of twelve bottles. While you can drink the rest of the batch any time you like, on the first Friday of every month, crack open a bottle from the test case and take notes on how you liked it.
After one year of testing, you will know when that type of wine is at its peak for you. With experience, you will get a feel for when you like wines in general and can plan your wine cellar around your tastes and consumption. For example, if you like wine that is aged for one year, and average a bottle per night (including guests and gifts), you’ll need 365 bottles in your cellar.