Cold Brew Shelf Life: How Long It Lasts and How to Keep It Fresh
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One of the best things about cold brew? You can make a batch and sip it all week long. But how long does cold brew really last — and how do you keep it tasting as fresh on Day 5 as it did on Day 1?
Let’s break down how long cold brew lasts, how to store it, and a few tips to make the most of every batch.
⏳ How Long Does Cold Brew Last?
Homemade cold brew concentrate lasts about 7 to 10 days in the fridge. If you’ve already diluted it with water or milk, aim to drink it within 3 to 4 days for peak flavor.
Store-bought cold brew or cold brew packets will often have a “best by” date — follow that, and refrigerate after brewing.
🧊 How to Store Cold Brew
1. Use a sealed container. A mason jar, glass bottle, or airtight pitcher will keep out air (and fridge smells) that can degrade flavor.
2. Keep it cold. Always store your cold brew in the refrigerator — the colder, the better.
3. Don’t add extras until serving. Flavorings like milk, syrups, or creamers can shorten shelf life, so add them right before you drink.
🔍 Signs Your Cold Brew’s Gone Bad
Cold brew rarely goes “bad” in a dangerous way — but the flavor can go stale or sour. Here’s what to watch for:
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A sharp, vinegary smell
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Cloudiness or separation (that wasn’t there before)
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A flat, bitter, or “off” taste
If in doubt, dump it out. Or better yet — make a smaller batch next time.
🛍️ Brew Smart with Birch Glen Roasters
Our Cold Brew Packets are pre-measured for optimal freshness and easy brewing. Just steep, store, and sip all week. Want to rotate flavors? We’ve got options like Raspberry Linzer Cookie and Tiramisu that make every glass worth looking forward to.
Cold brew is low-maintenance — and that’s part of the appeal. Store it right, and you’ll have smooth, bold coffee ready to go for days.
Make it last. Keep it fresh. And stock up on cold brew made to go the distance.