Great hobby! Proper storage is crucial for preserving both the whiskey and its packaging over 15-20 years. Here's how to store your Suntory collection properly:
For the Whiskey:

Keep bottles upright (never on their side like wine) to prevent cork deterioration
Maintain consistent temperature around 15-20°C (59-68°F) - avoid temperature fluctuations
Your dark cabinet is perfect - UV light degrades whiskey over time
Ensure good air circulation to prevent humidity buildup
Keep humidity around 50-70% - too dry cracks corks, too humid damages labels

For the Boxes and Labels:

Wrap boxes in acid-free tissue paper or store in archival boxes to prevent discoloration
Consider using silica gel packets in storage areas to control moisture
Keep boxes away from any heat sources (radiators, pipes)
Don't stack boxes too high as weight can cause crushing over time

Additional Tips:

Check your collection annually for any signs of evaporation or cork issues
Keep the duty-free plastic on as you're doing - it provides extra protection
Consider taking photos now for insurance/documentation purposes
Ensure your storage area has stable conditions year-round

The discoloration you've seen typically happens from UV exposure, humidity fluctuations, or poor air quality. Your dark cabinet approach is smart, but adding some humidity control will really help preserve everything for your children's special days.

-AI

Don't get why want to buy whiskey to keep. Not like they will age further in bottle.

Unless you are talking those limited quantities the likes of hibiki 40 or yamazaki 55

Why store it for others to get drunk and sometimes vomit at the function ? Esp when you boast is 15-20 years, more a reason to get drunk.😂

When your children married a halal spouse, on reflecting back, better to have spend the money going for a holiday 🤭

How, if children want to be single. 🤔

Don't kecam ... straight answer.

i have seen a liquor shop keep their whiskies in a park car behind their shop under the hot sun
this parked car is never used, the tires all deflated
is it possible these whiskies are smuggled?

Yes, I still am collecting but very hard to get the ones after 2024. Suddenly got demand by locals, these are not usually sold in duty free anymore. The cheaper non special editions are for savoured alone in the night like yamas and nikka.

Unker got a few, maybe open when dotters get merrid, but only open at home not in dinners where everyone drinks like a fish and not able to enjoy the quality. That one pakai JW Double black or Swing.

TS needs to find real vintages which are special editions to add to collection. So far my labels do not fade as not exposed to air and sunlight eventhough kept in a display cabinet.

Well... yes- lot of LE memang gimmick.
part of marketing/branding.

how good is good- very subjective yeah. By panel of judges? are they indepent?

Anyway- keep or 15 years... as investment as you forsee the the price will go up. yes- they indeed will go up- but like wise the money i can put into investment also it goes up. Put in FD desptie the shitty 3.5% also it will double in value in 15 years.

but keeping whiskey - risk of it damaged, stolen. Keep a few for self indulgence is ok, but dont keep for others la. We would not know what the guest like to drink.

Like time popular brandy... otard/VSOP. now like old people drink
then macallan single malt... but now got some many other brands are out.

Also Japanse Suntory... it was popular and pretty hyped up back then.... now it is very common in japan, so people just goreng the price.

There are few cheaper alternative which i also enjoy.
Tomatin, Balvenie, Mort Lach are pretty decent too.

I have a fair share of collections... just started nothing too impresive.
but feel like collecting is putting rm 2000 at the cabinet, can see cannot drink, and one day my house break in will be GG.

prefer nice bottle that i can open and enjoy on a good day- without breaking the bank and felt too previous to open.

how is the taste compared to "proper" airport duty free or 700ml duty paid version in malls?

one more thing to remember is to keep it somewhere where the temp is as consistent as possible. if your tool cabinet is in a aircond room (which I doubt is in use 24/7) then you'd better look into another location for it.

as for keeping it for 15+ years, are you randomly buying brands or already got a taste for a particular bottle and collecting them ?

been keeping yamaki 18 and hibiki 21.

i rather enjoy it than keep it for later.

have you tasted it before?

Buy liquor for investment means buying rare bottles like Yamazaki 35.

But these liquor are usually priced out of reach for the majority of folks.

hahah, then really dunno you buy for apa and at wat reasoning for your kid wedding

I like my whiskies, those that I wanna keep, normally I will buy 2 bottles, one for drinking , another for keeping

these 18 yama or 21 hibiki I dont think its like an investment pc such as those karuizawa or chichibu

but prices now for jap whisky is really overrated , we used to be drinking these for sub 300 sgd

Why not store in those vacuum sealed bags? That would solve the humidity and cork problem...

my 2 cents based on observations of my dads collection and my own.

Temperature in msia is the biggest killer, our so called from room temp is more like 28-29C indoors, pretty bad for wine and for liquor it accelerates the off gas of the volatile components, older liquor kept like 10 years all lose their 'hiongness' when you finally open it.
Then comes evaporation, over time even sealed, the bottle just slowly evaps out and you can see it slowly getting lower. My dad has bottles from the 80s and some of them are like a quarter gone. Some shops i see try to mitigate this by shrink wrapping the bottles.
I try to keep my own bottles at 22-24C to try and mitigate these.

On the topic of Japanese whisky, pretty much my hobby. Managed to stockpile a whole bunch of Yama/Hibi/Haku. The way i look at it, like LVMH, Suntory won't be reducing the msrp prices, so no point looking back at 2015 prices. Right now i've stopped buying at current MSRP as i think the market has stabilized and i dont think Suntory will be raising them anymore. Pretty much all my stuff is bought at MSRP except for the Hibiki 12s and 17s which i bought via auction. Have a full set of the Y18, H18 and Hibi21. Passed on the Y25 and Hibi30, too rich for my wallet.

damn, u made me feel damn old

for ur replies , it seems you are based in sg, or ur purchases are made mainly from duty free

I believe the age statement suntorys are not available at Changi, if in Japan , then you are very lucky

I personally buy some wine that can be aged for 20 years or more with the year of my child's birth year