Whiskey starts losing its kick two years after opening. (2020). Fill up your flask about two thirds full with your cleansing mixture, put the cap on, and shake the flask hard for 30-60 seconds. When to Use a 5 Gallon Glass Water Dispenser? Also, there is oxidation, which together with evaporation, can change the taste of the rum. Healthline Media does not provide medical advice, diagnosis, or treatment. It's still important to store a sealed bottle away from light and in a place where the temperature doesn't fluctuate, just to be safe. Dilute 1 teaspoon of bleach and 1 teaspoon of baking soda in 4 litres of water. This article was co-authored by Bryan Sullivan and by wikiHow staff writer, Megaera Lorenz, PhD. Mix a teaspoon of bleach with a teaspoon of baking soda inside your water bottle. This is cold enough to freeze your food and ice but not cold enough to freeze the average bottle of 80-proof liquor. But its also worth mentioning that with time, rum will not get better, and the taste will not be different. After opening, it should be consumed within 68 months for peak taste, according to industry experts (3). People have said that pewter flasks dont leave as much of a metallic taste compared to stainless steel if the whiskey is left inside long. Alcohol doesn't go badthe way food does. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/8\/86\/Store-Liquor-in-Stainless-Steel-Flasks-Step-1.jpg\/v4-460px-Store-Liquor-in-Stainless-Steel-Flasks-Step-1.jpg","bigUrl":"\/images\/thumb\/8\/86\/Store-Liquor-in-Stainless-Steel-Flasks-Step-1.jpg\/aid9293182-v4-728px-Store-Liquor-in-Stainless-Steel-Flasks-Step-1.jpg","smallWidth":460,"smallHeight":306,"bigWidth":728,"bigHeight":485,"licensing":"